Project No. 432109 Brent Cross Cricklewood Phase … No. 432109 Brent Cross Cricklewood Phase 1B North – Plot 113 Daylight and Sunlight Availability Study 8th May 2017 For Waterman

Project No. 432109

Brent Cross Cricklewood

Phase 1B North – Plot 113

Daylight and Sunlight Availability Study

8th May 2017

For

Waterman Infrastructure

& Environment Ltd.

BMT Fluid Mechanics Limited

Project 432109 Report 4 Release 7 2 of 53 432109rep4v7.docx

Report Title:

Brent Cross Cricklewood Phase 1B North Daylight and Sunlight Availability Study – 113 Plot

Client: Waterman Infrastructure &

Environment Ltd.

Document No: 432109rep4v7 Release: 7 Copy No: 1

Status: Final Report

Report Date: 8th May 2017

Holds:

Name: Signature: Date:

Prepared by: Dr. S. Cunningham

08/05/17

Checked by: Mr. J. Green

08/05/17

Approved by: Mr. S. Cammelli

08/05/17

Distribution: Copy no. to Client

Copy no. to BMT Records

Previous Release

History: Release No: Status: Date:

432109rep4v1 1 Draft Report for Internal Review

14/03/17

432109rep4v2 2 Draft Report for

Client Review 15/03/17



432109rep4v4 4 Draft Report for Client Review

23/03/17



432109rep4v6 6 Draft Report for Client Review

28/04/17



Brent Cross Cricklewood

Phase 1B North

Daylight and Sunlight

Availability Study – Plot 113

Contents

1. Introduction .................................................................................................. 6

2. Daylight and Sunlight Availability .................................................................... 7

3. Site Location & Surrounding Area ................................................................. 10

4. Assessment Methodology ............................................................................. 11

5. Results ........................................................................................................ 13

6. Conclusions ................................................................................................. 20

7. References .................................................................................................. 22

APPENDIX A. Drawing Information ............................................................... 51

APPENDIX B. Assessment Location Schemes ................................................. 52

APPENDIX C. Tabulated Data ....................................................................... 53



EXECUTIVE SUMMARY

Background

The study provides an assessment of the daylight and sunlight indices,

Vertical Sky Component and Annual Probable Sunlight Hours for the

residential development on Plot 113 for one configuration of the proposed

Phase 1B (North) in the context of the:

Interim Surrounds Configuration – Phase 1B (North) and Phase 1A

(North) in place with the existing surrounds in the absence of further

development

Maximum Parameter Masterplan Configuration – Phase 1B (North)

and Phase 1A (North) in place with the remainder of the Brent Cross

Cricklewod scheme modelled using the maximum parameters (worst

case scenario)

An assessment was also carried out to assess the “sun on the ground” of the

amenity space associated with the Plot 113 residential building.

The following conclusions were drawn from the assessment, and are based

on industry standard guidelines for site layout planning in relation to natural

light.

Daylight

Two indices were used to assess the daylight availability of the Plot 113

residential building, the Vertical Sky Component (VSC), and the Average

Daylight Factor (ADF). For Plot 113 in the context of the interim surrounds,

only 61 (21%) windows do not meet the BRE criteria. Of these 61 windows,

48 windows are located on the eastern side of the plot where obstruction to

daylight is due to the proposed Brent Cross shopping complex massing. The

orientation of the windows should be noted as these are north facing,

therefore reduced daylight is somewhat expected. The remaining 13 windows

are located on the western side of the residential building where obstruction

to daylight is due to the pillars and concrete massing on the third floor

balconies. Other obstructions to daylight on the western side of the building

are caused by shadowing of the protruding walls to the left of the windows

which block the windows path to the sky. The maximum parameter

surrounds have little effect on the daylight for the Plot 113 residential

building. An additional two rooms did not meet the ADF guideline. It should

be noted the maximum parameters are representative of the worst case and

may not be implemented.



Sunlight

The availability of sunlight to buildings was assessed on the basis of Annual

Probable Sunlight Hours (APSH).

APSH guidelines were met at the vast majority of assessment locations

associated with the Plot 113 residential building. Only 1 window was seen to

fall short of the APSH criteria. The window which does not meet the

recommended level of sunlight is located behind pillars and structure on the

third floor of the western side of the building.

The maximum parameter surrounds provide no effect on the sunlight

associated with the Plot 113 residential building.

The amenity area assessed as part of Plot 113 receives 83% of sun on the

ground and therefore passes the BRE guideline for both the interim

surrounds and maximum parameter surrounds.



Brent Cross Cricklewood Phase 1B North Daylight and Sunlight Availability Study – Plot 113

1. Introduction

This report presents the results of a daylight and sunlight availability study

commissioned by Waterman Infrastructure & Environment Ltd. The primary

aim of the study was to assess the natural light availability for the proposed

residential development on Plot 113 of Phase 1B (North), of the proposed

Brent Cross Cricklewood scheme. An assessment was also carried out to

assess the “sun on the ground” of the amenity space associated with the Plot

113 residential building.

The study provides an assessment of the main daylight and sunlight indices,






development; and




case scenario) as per the 2014 Permission.



2. Daylight and Sunlight Availability

Guidelines for assessing the quality of natural light for buildings are outlined

in the BS 8206-2:2008, “Lighting for Buildings – Part 2: Code of Practice for

Daylighting” [2] and the BR 209, “Site Layout Planning for Daylight and

Sunlight” [1]. Daylight and sunlight availability for buildings are principally

assessed in terms of the Vertical Sky Component (VSC) and Annual Probable

Sunlight Hours (APSH) as described below respectively:

Vertical Sky Component (VSC) – is the ratio of direct sky illuminance

at a vertical wall to the simultaneous horizontal illuminance under an

unobstructed sky. VSC provides a measure of daylight availability.

The “Standard Overcast Sky” defined by the CIE (Commission

Internationale de l’Eclairage) is used and the ratio is expressed as a

percentage which can reach a maximum of 40% for a totally

unobstructed facade. Industry best practice guidelines [1]

recommend the VSC for vertical facades should be 27% or above. If

the VSC falls below 27%, then the proposed development should not

cause a reduction to less than 0.8 times the existing value (i.e. a

reduction of no more than 20%).

Annual Probable Sunlight Hours (APSH) – is defined as the duration

for which a location receives direct sunlight. Assessment of APSH

takes into account the cloudiness at the site. Industry best practice

guidelines [1] recommend the APSH be at least 25% on an annual

basis and at least 5% during the winter months (September to

March). For the Northern hemisphere, the sun travels along a

Southerly path relative to the ground. Therefore, planning guidelines

for APSH only apply to facades facing within 90° of South.

If a window does not meet the recommended guidelines from the VSC

assessment, another daylighting index, the Average Daylight Factor (ADF),

may be performed in conjunction with the guidelines for interior daylighting

as described in BR 209 [1].

The criteria for good ADF states if a predominantly daylight appearance is

required, the ADF should be:

5% or more if there is no supplementary electric lighting, or

2% or more if supplementary electric lighting is provided

Table 1 states the minimum ADF values recommended for different types of

dwelling spaces.



Table 1: Minimum ADF Recommended for Dwellings

Room Use ADF Values

Kitchen >2%

Living Room >1.5%

Bedroom >1%

If the impact of a proposed development meets the above design guidance,

it is likely adequate daylight and sunlight will be available in the relevant

areas and no further measures will be necessary for improvement. If the

proposed development causes a degradation of conditions where the above

guidance is not achieved particularly in areas where previously it had been

achieved under existing site conditions, it is likely occupants of those areas

may notice the impact and may give cause for complaint. A similar

perception may arise in areas where the existing site conditions do not

achieve the above guidance and the impact of the proposed development

reduces the daylight and sunlight availability to less than 80% of the existing

conditions.

It is possible for a proposed development to result in an adverse effect

relative to existing conditions, yet still comply with best practice guidelines if

the recommended minimum quantities of direct daylight and sunlight are

achieved.

Where possible, areas sensitive to sunlight / daylight requirements should be

located on the south side of a development but not adjacent to a

neighbouring structure. In some cases, it may be possible to improve the

availability of natural light through design changes, e.g. layout changes,

building orientation etc. In areas where it is not possible to meet the design

guidance, consideration should be given to practical measures to provide a

perception of better natural lighting, e.g. avoiding the use of dark coloured

material and minimising dense landscaping which could exacerbate

overshadowing.

For amenity areas, it is recommended the area of interest should receive at

least two hours of sunlight on the 21st March. If as a result of a new

development an existing amenity area does not meet the above, and the

area which can receive two hours of sun on the 21st March is less than 0.8

times its former value, the loss of sunlight will be noticeable.

The design guidance describes best practice for site layout planning and

should not be interpreted as a mandatory requirement. The guidance is

flexible and should be applied with due consideration to the general site

location and the intended use of local areas around the site. For example,

long periods of overshadowing and reduced daylight availability are likely to

be more acceptable in a city centre environment compared to residential

developments in suburban or rural areas. Similarly, in the close proximity of a



development, a car park is likely to be less sensitive to good quality natural

lighting compared to a café area with outdoor seating. The guidelines apply

to areas / buildings where the occupants have a reasonable expectation of

daylight; this would include schools, hospitals, hotels and hostels, and small

workshops.



3. Site Location & Surrounding Area

3.1. Site Location & Surrounding Area

Phase 1B (North) is part of the Brent Cross Cricklewood scheme. Phase 1B

(North) is located in the London Borough of Barnet, UK. The Phase 1B

(North) is bounded by Hendon Way (A41) to the north-east, the A406 to the

south and the M1 to the west. At present, the existing Phase 1B (North) area

comprises of the existing Brent Cross Shopping Centre and car parking

spaces. The area immediately surrounding Phase 1B (North) principally

comprises low-rise residential buildings and car parks as shown in Figure 1.

The Phase 1B (North) is presented within the context of the wider interim

surrounds and the maximum parameter surrounds in Figure 2 and Figure 3

respectively.

Two configurations of the surrounding area are considered in the current

study, namely:

Interim Surrounds Configuration - Phase 1B (North) and Phase 1A


development; and

Maximum Parameter Masterplan Configuration - Phase 1B (North)


scheme modelled using the maximum parameters (worst case

scenario) as per the 2014 Permission.

3.2. Proposed Development

The proposed Phase 1B (North) comprises a number of development plots

which include retail, leisure, food and beverage, hotel, and community

floorspace uses, in addition to an energy centre. The residential development

within Phase 1B (North) will be located on Plot 113. The proposed Phase 1B

(North) will be supported by multi-storey car parks and the enhanced

replacement bus station, threshold spaces/public realm areas, in addition to

the Eastern and Western riverside parks, walkways and nature parks

adjacent to the realigned River Brent, and improvements to Sturgess Park.

Refurbishment works are also proposed within the existing Brent Cross

Shopping Centre.

Models of the proposed Phase 1B (North) in both contexts to be used in the

assessments are presented in Figure 2 and Figure 3.



4. Assessment Methodology

4.1. Model Detail

A computational model was constructed to represent one configuration of the

proposed Phase 1B (North) within the context of the:

Interim Surrounds Configuration - Phase 1B (North) and Phase 1A


development; and

Maximum Parameter Masterplan Configuration - Phase 1B (North)


scheme modelled using the maximum parameters (worst case

scenario).

The model includes a detailed representation of the adjacent buildings within

a distance judged to have an influence on the availability of natural light.

The model of the interim surrounds and maximum parameter masterplan

were constructed based on drawing information supplied by Waterman

Infrasructure & Environment Ltd. A full list of drawings supplied to BMT is

provided in APPENDIX A.

4.2. Daylight and Sunlight Analysis

MBS Waldram Tools v2.0 [3] was the daylight and sunlight software used to

undertake the assessment of the proposed Phase 1B (North). It is an

application which runs within an AutoCAD environment designed to process

calculations associated with daylight and sunlight.

Daylight is calculated by constructing a so-called Waldram diagram at each

location of interest. Waldram diagrams plot surrounding obstructions viewed

from that location on a vertical plane. Daylight availability is a function of the

view of the sky on this vertical plane.

Sunlight hours were calculated by simulating the movement of the sun for

each hour of the day, for the full year using accurate sun paths for the

geographical coordinates of the site. Annual and winter sunlight hours were

obtained from the appropriate hours that represent these periods for the city

of London.

The proposed Phase 1B (North) was assessed in accordance with guidelines

for site layout planning for daylight and sunlight [1], a brief synopsis of which

is given in Section 2.



The assessment assumes the following parameters:

Average Reflectance = 0.5 (light coloured room)

Glazing Transmittance = 0.68 clear glass (double glazed)

4.3. Assessment Location Schemes

The Plot 113 residential building was the only building to be assessed in this

daylight and sunlight study of the proposed Phase 1B (North) as indicated in

Figure 2 and Figure 3.

The Plot 113 Residential building has 292 windows and is split into four

separate assessment zones to account for the slope in the topology. Not all

windows are associated with the habitable rooms. Only the windows

associated with habitable rooms are assessed in the ADF study. Figure 4

characterises the assessment segregation for the Plot 113 residential

building. The amenity region for assessment associated with the Plot 113

residential building is given for both surround contexts in Figure 2 and Figure

3. A 3D model with the assessment locations is provided in APPENDIX B.



5. Results

A full list of the daylight and sunlight availability results are provided in

APPENDIX C for the Plot 113 residential building required for assessment.

These include VSC, APSH, and ADF indices calculated where necessary for

the assessment locations for the proposed Phase 1B (North).

The following figures present whether windows associated with the Plot 113

residential building pass or fail the VSC, APSH annual, and APSH winter

indices:

VSC – Interim Surrounds, Figure 5 to Figure 9

VSC – Maximum Parameter Surrounds, Figure 10 to Figure 14

ADF – Interim Surrounds, Figure 15 to Figure 17

ADF – Maximum Parameter Surrounds, Figure 18 to Figure 20

APSH A (Annual) – Interim and Maximum Parameter Surrounds,

Figure 21 to Figure 23

APSH W (Winter) – Interim and Maximum Parameter Surrounds,

Figure 24 to Figure 27

The following tabulated data is presented as follows:

VSC – Interim Surrounds, Table 2

VSC – Maximum Parameter Surrounds, Table 5

ADF – Interim Surrounds, Table 3 and Table 4

ADF – Maximum Parameter Surrounds, Table 6 and Table 7

APSH A (Annual) / APSH W (Winter) – Interim and Maximum

Parameter Surrounds, Table 8

Amenity Areas – Interim Surrounds and Maximum Parameter

Surrounds, Table 9

5.1. Daylight Analysis

5.1.1. VSC and ADF – Interim Surrounds

Daylight availability was assessed at 292 windows associated with the Plot

113 residential building for the interim surrounds. As stated in Section 4, in

order to account for the change in topology, the assessment area was

segregated into four assessment zones as illustrated in Figure 4.

Of the 292 windows assessed, 137 (47%) windows in total do not meet the

VSC criteria in the BRE guideline. The breakdown of the VSC results for the

interim surrounds are presented in Table 2 and illustrated in Figure 5 to

Figure 7.



Table 2: Windows which do not meet the VSC criteria for the Plot 113 residential building in the context of the interim surrounds

Assessment Zone

Interim Surrounds

Windows

obstructed on the

Eastern side

Windows

obstructed on the

Western side

Plot 113 Resi building 1 7 12




On the eastern side of the residential plot, 116 windows are obstructed

primarily due to the massing of, and close proximity to the Brent Cross

shopping complex. Examples of this obstruction are shown in Figure 8. On

the western side of the residential plot, 21 windows are obstructed due to

the design of the Plot 113 residential building and other existing surrounding

buildings. Examples of these obstructions are shown in Figure 9. The VSC

calculation is a preliminary calculation in order to assess whether further

investigation is required. For windows which do not meet the criteria, a more

in depth ADF analysis was carried out.

At the window locations where the VSC did not achieve the recommended

levels, an ADF (internal daylight assessment) was undertaken to demonstrate

whether the available daylight is sufficient for the room’s intended use. For

the Plot 113 residential building, multiple window locations in some instances

serve a single room. 73 rooms are associated with the 137 windows required

for further assessment within the Plot 113 residential building in the context

of the interim surrounds. The breakdown of the ADF results is given in Table

3 for the Plot 113 residential building in the context of the interim surrounds.



Table 3: Number of rooms which pass or fail the ADF guideline for the Plot 113 residential building in the context of the interim surrounds

Assessment Zone

Interim Surrounds (Assessed)

Rooms

Passing on the

Eastern

Side

Rooms

Failing on the

Eastern

Side

Rooms

Passing on the

Western

Side

Rooms

Failing on the

Western

Side

Plot 113 Resi building 1 6 0 N/A 1

Plot 113 Resi building 2 7 9 1 1



Out of the 73 rooms assessed, 44 rooms do not meet the ADF guideline

however 37 of these rooms have windows which are north facing where

reduced daylight would be expected. Figure 15 to Figure 17 illustrate the

windows associated with the rooms which do not meet the ADF guideline.

The breakdown results of the windows associated with the ADF results for

the Plot 113 residential building in the context of the interim surrounds are

given in Table 4. For Plot 113 in the context of the interim surrounds, only 61

(21%) windows do not meet the BRE guidelines.

Table 4: Number of windows associated with the ADF guideline for the Plot 113 Residential building in the context of the interim surrounds

Assessment Zone

Interim Surrounds (Assessed)

Windows Failing on the Eastern

Side

Windows Failing on the Western

Side





The room locations which do not meet the recommended level of daylight

are mostly located on the eastern side of the proposed 113 residential

building, where there is an effect from the massing of the Brent Cross

shopping complex. 37 rooms are noted to be potentially affected in terms of

daylight on the eastern side of the Plot 113 residential building corresponding

to 48 windows. Generally, reduced daylight would be expected for north



facing windows therefore adequate electric lighting is required for those

rooms. 7 rooms are do not meet the ADF criteria on the western side of the

Plot 113 residential building corresponding to 13 windows. These rooms are

primarily located behind pillars and obstructed by the protruding structures of

the building as shown in Figure 15.

5.1.2. VSC and ADF – Maximum Parameter

Surrounds

Daylight availability was also assessed at 292 windows associated with the

Plot 113 residential building for the maximum parameter surrounds. Of the

292 windows assessed, 139 (48%) windows in total do not meet the VSC

criteria in the BRE guideline. The impact of the maximum parameter

surrounds has a minimal effect on the daylight availability in comparison to

the interim surrounds. The breakdown of the VSC results for the maximum

parameter surrounds is presented in Table 5 and illustrated in Figure 10 to

Figure 12.

Table 5: Windows which do not meet the VSC criteria for the Plot 113 Residential building in the context of the maximum parameter surrounds

Assessment Zone

Maximum Parameter Surrounds

Windows obstructed on the

Eastern side

Windows obstructed on the

Western side





Only 2 extra windows fail to meet the VSC criteria due to the introduction of

the maximum parameter surrounds scheme which is shown in Figure 10.

These window locations are W2 on the second floor associated with the Plot

113 residential building 3 and W3 on the ground floor associated with the

Plot 113 residential building 4. Comparative views from those window

locations are illustrated in Figure 13 and Figure 14 respectively. Both

windows are within 1% of passing the VSC guideline and it should be noted

the maximum parameters are representative of the worst case and may not

be implemented.

ADF daylight availability was also assessed for the Plot 113 residential

building in the context of the maximum parameter surrounds. 75 rooms are

associated with the 139 windows required for further assessment associated



with the Plot 113 residential in the context of the maximum parameter

surrounds. The breakdown of the ADF results is given in Table 6.

Table 6: Number of rooms which pass or fail the ADF guideline for the Plot 113 Residential building in the context of the maximum parameter surrounds

Assessment Zone


(Assessed)

Rooms

Passing on the

Eastern Side

Rooms

Failing on the

Eastern Side

Rooms

Passing on the

Western Side

Rooms

Failing on the

Western Side





Out of the 75 rooms assessed, 46 rooms do not meet the ADF guideline

however 38 of these rooms have windows which are north facing where

reduced daylight would be expected. Figure 18 to Figure 20 illustrate the

windows associated with the rooms which do not meet the ADF guideline.

The breakdown results of the windows associated with the ADF results for

the Plot 113 residential building in the context of the maximum parameter

surrounds are given in Table 7. For Plot 113 in the context of the maximum

parameter surrounds, only 67 (23%) windows do not meet the BRE criteria.

Table 7: Number of windows associated with the ADF guideline for the Plot 113 Residential building in the context of the maximum parameter surrounds

Assessment Zone


(Assessed)

Windows Failing

on the Eastern Side

Windows Failing

on the Western Side





As stated in the results for the VSC index, the effect of the maximum

parameter surrounds has a minimal effect on the daylight availability. Only



two extra rooms fail due to the introduction of the maximum parameter

surrounds scheme.

5.2. Sunlight Analysis

An APSH assessment was also carried out. APSH guidelines were met at the

majority of the assessment locations. Only 1 (0.3%) window was seen to fail

the APSH criteria as marked in red in Figure 21. The breakdown of the APSH

results for both surrounding schemes are presented in Table 8. The window

which does not meet the recommended level of sunlight is located behind

pillars and structure on the third floor of the western side of the building as

illustrated in Figure 27. The maximum parameter surrounds have no

increased effect on the APSH results associated with the Plot 113 residential

building.

Table 8: Number of windows which are north facing, pass or fail the APSH criteria for the Plot 113 Residential building

Assessment Zone

APSH

North Facing

Interim

Surrounds

Maximum

Parameters

APSH Pass

APSH Fail

APSH Pass

APSH Fail

Plot 113 Resi building 1 48 31 1 31 1




5.3. Amenity Analysis

A sunlight assessment was carried out at the amenity area associated with

the Plot 113 residential building as shown in Figure 28. Figure 2 and Figure 3

illustrate the assessment region for this amenity space. 83% of the amenity

area receives adequate sunlight therefore passes the BRE guideline. Table 9

outlines the parameters and results for the assessment region. The maximum

parameter surrounds have no effect on the “sun on the ground” availability

at the Plot 113 residential amenity space.



Table 9: Results of the sunlight amenity study

Surrounds

Scheme Amenity Area Area (m2)

Lit Area Proposed

(m2)

% Area

Lit

Meets BRE

Criteria

Interim Region associated with the Plot 113 Residential

Building

3380 3107 83% Pass

Maximum

Parameters

Region associated with

the Plot 113 Residential Building

3380 3107 83% Pass



6. Conclusions

The study provides an assessment of the daylight and sunlight indices,






development




case scenario)

An assessment was also carried out to assess the “sun on the ground” of the

amenity space associated with the Plot 113 residential building.

The following conclusions were drawn from the assessment, and are based

on industry standard guidelines for site layout planning in relation to natural

light.

Daylight

Two indices were used to assess the daylight availability of the Plot 113

residential building, the Vertical Sky Component (VSC), and the Average

Daylight Factor (ADF). For Plot 113 in the context of the interim surrounds,

only 61 (21%) windows do not meet the BRE criteria. Of these 61 windows,

48 windows are located on the eastern side of the plot where obstruction to

daylight is due to the proposed Brent Cross shopping complex massing. The

orientation of the windows should be noted as these are north facing,

therefore reduced daylight is somewhat expected. The remaining 13 windows

are located on the western side of the residential building where obstruction

to daylight is due to the pillars and concrete massing on the third floor

balconies. Other obstructions to daylight on the western side of the building

are caused by shadowing of the protruding walls to the left of the windows

which block the windows path to the sky. The maximum parameter

surrounds have little effect on the daylight for the Plot 113 residential

building. An additional two rooms did not meet the ADF guideline. It should

be noted the maximum parameters are representative of the worst case and

may not be implemented.



Sunlight

The availability of sunlight to buildings was assessed on the basis of Annual

Probable Sunlight Hours (APSH).

APSH guidelines were met at the vast majority of assessment locations

associated with the Plot 113 residential building. Only 1 window was seen to

fall short of the APSH criteria. The window which does not meet the

recommended level of sunlight is located behind pillars and structure on the

third floor of the western side of the building.

The maximum parameter surrounds provide no effect on the sunlight

associated with the Plot 113 residential building.

The amenity area assessed as part of Plot 113 receives 83% of sun on the

ground and therefore passes the BRE guideline for both the interim

surrounds and maximum parameter surrounds.



7. References

[1] Building Research Establishment Report, “Site Layout Planning for

Daylight and Sunlight: A Guide to Good Practice”, P. Littlefair, Second

Edition, 2011.

[2] BS 8206-2:2008, “Lighting for buildings – Part 2: Code of practice for

daylighting.”, 2008.

[3] MBS Waldram Tools, Daylight / Sunlight Studies & Rights of Light

Assessment within AutoCAD, http://surveymbs.com/our-

software/mbs-waldram-tools, 2016.

http://surveymbs.com/our-software/mbs-waldram-tools

http://surveymbs.com/our-software/mbs-waldram-tools



Figure 1: Site location of proposed Brent Cross Phase 1B (North)

432109 Brent Cross

Figure 1 - Site Location

Status:

Final

Drawing No:

432109/1

Prep: S. Cunningham

Date: 25-April-2017



Figure 2: Proposed Phase 1B (North) in the context of the interim surrounding buildings

Phase 1B (North)

Interim Surrounds

Plot 113 Building for Assessment

Plot 113 Amenity Area for Assessment

Realigned River Brent

Major Roads

432109 Brent Cross

Figure 2 - Proposed Complex

Status:

Final

Drawing No:

432109/2

Prep: S. Cunningham

Date: 25-April-2017



Figure 3: Proposed Phase 1B (North) in the context of the maximum parameter surrounding buildings

Phase 1B (North)

Interim Surrounds

Plot 113 Building for Assessment

Plot 113 Amenity Area for Assessment

Realigned River Brent


Major Roads

432109 Brent Cross

Figure 3 - Proposed Complex

Status:

Final

Drawing No:

432109/3

Prep: S. Cunningham

Date: 25-April-2017



Figure 4: Plot 113 residential building assessment segregration

432109 Brent Cross

Figure 4 – 113 Residential Split

Status:

Final

Drawing No:

432109/4

Prep: S. Cunningham

Date: 25-April-2017



Figure 5: Vertical sky component results for the proposed scheme in side view and perspective view for the southwest side of the Plot 113 residential building bounded by the interim surrounds

Failing Passing Within a tolerance of 1%

432109 Brent Cross

Figure 5 – VSC 113 Residential

Status:

Final

Drawing No:

432109/5

Prep: S. Cunningham

Date: 25-April-2017



Figure 6: Vertical sky component results for the proposed scheme in side view and perspective view for the northeast side of the Plot 113 residential building bounded by the interim surrounds


432109 Brent Cross

Figure 6 - VSC 113 Residential

Status:

Final

Drawing No:

432109/6

Prep: S. Cunningham

Date: 25-April-2017



Figure 7: Vertical sky component results for the proposed scheme in side view for the south (left image) and north (right image) sides of the Plot 113 residential building bounded by the interim surrounds


432109 Brent Cross


Status:

Final

Drawing No:

432109/7

Prep: S. Cunningham

Date: 25-April-2017



Figure 8: Vertical sky component results for the proposed Plot 113 residential building from the perspective of the window bounded by the interim surrounds illustrating the effect of the Brent Cross shopping complex

432109 Brent Cross


Status:

Final

Drawing No:

432109/8

Prep: S. Cunningham

Date: 25-April-2017

Plot 113 residential Building 3 – Ground Floor W11

17.93% Visibility

Plot 113 residential Building 4 – First Floor W16

19.14% Visibility

Interim Surrounds



Figure 9: Vertical sky component results for the proposed Plot 113 residential building from the perspective of the window bounded by the interim surrounds illustrating the effect of the building design

432109 Brent Cross


Status:

Final

Drawing No:

432109/9

Prep: S. Cunningham

Date: 25-April-2017

Plot 113 residential Building 1 – Ground Floor W5

25.10% Visibility

Plot 113 residential Building 1 – First Floor W9

25.93% Visibility

Interim Surrounds



Figure 10: Vertical sky component results for the proposed scheme in side view and perspective view for the southwest side of the Plot 113 residential building bounded by the maximum parameter surrounds


432109 Brent Cross


Status:

Final

Drawing No:

432109/10

Prep: S. Cunningham

Date: 25-April-2017

Two Extra

windows do

not meet the

VSC guideline

due to the

maximum

parameter

surrounds



Figure 11: Vertical sky component results for the proposed scheme in side view and perspective view for the northwest side of the Plot 113 residential building bounded by the maximum parameter surrounds


432109 Brent Cross


Status:

Final

Drawing No:

432109/11

Prep: S. Cunningham

Date: 25-April-2017



Figure 12: Vertical sky component results for the proposed scheme in side view for the south (left image) and north (right image) sides of the Plot 113 residential building bounded by the maximum parameter surrounds


432109 Brent Cross


Status:

Final

Drawing No:

432109/12

Prep: S. Cunningham

Date: 25-April-2017



Figure 13: Vertical sky component results for the proposed Plot 113 residential building from the perspective of the window illustrating the effect of the maximum parameter surrounds

432109 Brent Cross


Status:

Final

Drawing No:

432109/13

Prep: S. Cunningham

Date: 25-April-2017

Plot 113 residential building 4 – Ground Floor W3

27.16% Visibility

Plot 113 residential building 4 – Ground Floor W3

26.45% Visibility

Interim Surrounds Maximum Parameter Surrounds



Figure 14: Vertical sky component results for the proposed Plot 113 residential building from the perspective of the window illustrating the effect of the maximum parameter surrounds

432109 Brent Cross


Status:

Final

Drawing No:

432109/14

Prep: S. Cunningham

Date: 25-April-2017

Plot 113 residential building 4 – Second Floor W2

27.01% Visibility

Plot 113 residential building 4 – Second Floor W2

26.13% Visibility




Figure 15: Adequate daylight factor results for the proposed scheme in side view and perspective view for the southwest side of the Plot 113 residential building bounded by the interim surrounds


432109 Brent Cross

Figure 15 – ADF 113 Residential

Status:

Final

Drawing No:

432109/15

Prep: S. Cunningham

Date: 25-April-2017



Figure 16: Adequate daylight factor results for the proposed scheme in side view and perspective view for the northeast side of the Plot 113 residential building bounded by the interim surrounds


432109 Brent Cross


Status:

Final

Drawing No:

432109/16

Prep: S. Cunningham

Date: 25-April-2017



Figure 17: Adequate daylight factor results for the proposed scheme in side view for the south (left image) and north (right image) sides of the Plot 113 residential building bounded by the interim surrounds


432109 Brent Cross

Figure 17 - ADF 113 Residential

Status:

Final

Drawing No:

432109/17

Prep: S. Cunningham

Date: 25-April-2017



Figure 18: Adequate daylight factor results for the proposed scheme in side view and perspective view for the southwest side of the Plot 113 residential building bounded by the maximum parameter surrounds


432109 Brent Cross


Status:

Final

Drawing No:

432109/18

Prep: S. Cunningham

Date: 25-April-2017



Figure 19: Adequate daylight factor results for the proposed scheme in side view and perspective view for the northeast side of the Plot 113 residential building bounded by the maximum parameter surrounds


432109 Brent Cross


Status:

Final

Drawing No:

432109/19

Prep: S. Cunningham

Date: 25-April-2017



Figure 20: Adequate daylight factor results for the proposed scheme in side view for the south (left image) and north (right image) sides of the Plot 113 residential building bounded by the maximum parameter surrounds


432109 Brent Cross

Figure 20 - ADF 113 Residential

Status:

Final

Drawing No:

432109/20

Prep: S. Cunningham

Date: 25-April-2017



Figure 21: Annual probable sunlight hours (annually) results for the proposed scheme in side view and perspective view for the southwest side of the Plot 113 residential building surrounded by the interim surrounds (same results for the maximum parameter scheme)

Failing Passing Within a tolerance of 1% North Facing

432109 Brent Cross

Figure 21 - APSH A 113 Residential

Status:

Final

Drawing No:

432109/21

Prep: S. Cunningham

Date: 25-April-2017



Figure 22: Annual probable sunlight hours (annually) results for the proposed scheme in side view and perspective view for the northeast side of the Plot 113 residential building surrounded by the interim surrounds (same results for the maximum


432109 Brent Cross


Status:

Final

Drawing No:

432109/22

Prep: S. Cunningham

Date: 25-April-2017



Figure 23: Annual probable sunlight hours (annually) results for the proposed scheme in side view for the south (left image) and north (right image) sides of the Plot 113 residential building surrounded by the interim surrounds (same results for the maximum parameter scheme)


432109 Brent Cross


Status:

Final

Drawing No:

432109/23

Prep: S. Cunningham

Date: 25-April-2017



Figure 24: Annual probable sunlight hours (winter) results for the proposed scheme in side view and perspective view for the southwest side of the Plot 113 residential building surrounded by the interim surrounds (same results for the maximum parameter scheme)


432109 Brent Cross

Figure 24 - APSH W 113 Residential

Status:

Final

Drawing No:

432109/24

Prep: S. Cunningham

Date: 25-April-2017



Figure 25: Annual probable sunlight hours (winter) results for the proposed scheme in side view and perspective view for the northeast side of the Plot 113 residential building surrounded by the interim surrounds (same results for the maximum parameter scheme)


432109 Brent Cross


Status:

Final

Drawing No:

432109/25

Prep: S. Cunningham

Date: 25-April-2017



Figure 26: Annual probable sunlight hours (winter) results for the proposed scheme in side view for the south (left image) and north (right image) sides of the Plot 113 residential building surrounded by the interim surrounds (same results for the maximum parameter scheme)


432109 Brent Cross


Status:

Final

Drawing No:

432109/26

Prep: S. Cunningham

Date: 25-April-2017



Figure 27: APSH results for the proposed Plot 113 residential building from the perspective of the window illustrating the effect of the pillars to sunlight hours (yellow dots indicate annual position of the sun, blue dots indicate winter position of the sun)

432109 Brent Cross


Status:

Final

Drawing No:

432109/27

Prep: S. Cunningham

Date: 25-April-2017


Plot 113 residential building 1 – Third Floor W1 24% Annual Probable Sunlight Hours

Plot 113 residential building 1 – Third Floor W1 24% Annual Probable Sunlight Hours



Figure 28: Top view of the amenity area to be assessed associated with Plot 113

432109 Brent Cross

Figure 28 - Plot 113 Amenity Space

Status:

Final

Drawing No:

432109/28

Prep: S. Cunningham

Date: 25-April-2017

Amenity Areas for

assessment as

part of the Plot

113



APPENDIX A. DRAWING INFORMATION

The models used the approved model from the BMT FM wind environment study

“432109_Brent Cross (Waterman)_WE_MLS_FS_v002_with landscaping.dwg”

supplied and confirmed for the daylight and sunlight study on the 25/01/2017 by

Waterman Infrastructure & Environment Ltd. In conjunction with the above

scheme, drawings listed below in Table 10 were also used to construct the

daylight and sunlight model.

Table 10: List of drawings received for the daylight and sunlight

study

Plot 113 Residential Building Date Received

BrentCrossEnvironmental_234111.zip – CT Blocks.dwg 29 November 2017

08069-CTA-RN-0G-DR-A-20801 - RESIDENTIAL NORTH GROUND FLOOR GA PLAN.DWG

27 January 2017

08069-CTA-RN-ZZZ-DR-A-21801 - RESIDENTIAL NORTH

ELEVATIONS.DWG 27 January 2017

08069-CTA-RN-ZZZ-M3-A-RESIDENTIAL_NORTH_ahowell –

3D View.dwg 29 March 2017

Hotel Date Received

08069-CRL-HA-000-DR-A-12000 - Ground Floor Plan.dwg 13 February 2017

08069-CRL-HA-000-DR-A-12001 - First Floor Plan.dwg 13 February 2017

08069-CRL-HA-000-DR-A-12002 - Typical Floor Plan.dwg 13 February 2017

08069-CRL-HA-000-DR-A-12007 - Seventh Floor Plan.dwg 13 February 2017

08069-CRL-HA-000-DR-A-20000 - Elevations 1-200.dwg 13 February 2017

Amenities Date Received

20170213111956269.pdf 13 February 2017

E-mail received via Waterman Energy, Environment &

Design - "RE:432109/SC - Brent Cross - Daylight, Sunlight & Overshadowing"

08 February 2017



APPENDIX B. ASSESSMENT LOCATION SCHEMES

The location scheme for the windows and rooms are provided in the following

electronic appendixes:

See files:

“432109_Brent_Cross_Measurement_Scheme_Plot_113_Resi_Scheme_v002.dwg”



APPENDIX C. TABULATED DATA

The results of the daylight and sunlight studies are provided in the following electronic

appendixes:

APSH:

“432109_Brent_Cross_113_Residential_Plot_APSH_Results_Existing_Surrounds_v2.xlsx”

“432109_Brent_Cross_113_Residential_Plot_APSH_Results_Maximum_Surrounds_v2.xlsx”

VSC:

“432109_Brent_Cross_113_Residential_Plot_VSC_Results_Existing_Surrounds_v2.xlsx”

“432109_Brent_Cross_113_Residential_Plot_VSC_Results_Maximum_Surrounds_v2.xlsx”

ADF:

“432109_Brent_Cross_113_Residential_Plot_ADF_Results_Existing_Surrounds_v2.xlsx”

“432109_Brent_Cross_113_Residential_Plot_ADF_Results_Maximum_Surrounds_v2.xlsx”

Documents

Project No. 432109 Brent Cross Cricklewood Phase … No. 432109 Brent Cross Cricklewood Phase 1B North – Plot 113 Daylight and Sunlight Availability Study 8th May 2017 For Waterman