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Client : The Rooftop Housing Group Assessment of Daylight and Sunlight Provision to the Proposed Residential Apartment Building at the Church of St Aldate, Reservoir Road, Gloucester. July 2016

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Client : The Rooftop Housing Group

Assessment of Daylight and Sunlight Provision to the Proposed Residential Apartment Building at the Church of St Aldate, Reservoir Road, Gloucester.

July 2016

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Herrington Consulting Limited

Unit 6 – Barham Business Park

Elham Valley Road

Barham

Canterbury

Kent, CT4 6DQ

Tel/Fax +44 (0)1227 833855

www.herringtonconsulting.co.uk

This report has been prepared by Herrington Consulting Ltd in accordance with the instructions of their

client, Rooftop Housing Group, for their sole and specific use. Any other persons who use any information

contained herein do so at their own risk.

© Herrington Consulting Limited 2016

Template Rev – March16

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Client : The Rooftop Housing Group

Assessment of Daylight and Sunlight Provision to the Proposed Residential Apartment Building at the Church of St Aldate, Reservoir Road, Gloucester.

Contents Amendment Record

This report has been issued and amended as follows:

Issue Revision Description Date Written by Checked by

1 0 First issue 8th July 2016 NMM SPH

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Contents

1  Background and Scope of Appraisal 1 

2  The Site and Development Proposals 2 

2.1  Site Location 2 

2.2  The Development 2 

3  Policy and Guidance 3 

3.1  National Planning Policy 3 

3.2  Local Planning Policy 3 

3.3  Best Practice Guidance 3 

4  Assessment Techniques 4 

4.1  Background 4 

4.2  Average Daylight Factor 4 

5  Assessment Methodology 5 

5.1  Method of Baseline Data Collation 5 

5.2  Numerical Modelling 5 

5.3  Calculation Assumptions 5 

6  Daylight Provision Within New Rooms 7 

6.1  Average Daylight Factor 7 

7  Sunlight Provision Within New Rooms 8 

7.1  Annual Probable Sunlight Hours Assessment 8 

8  Conclusions 10 

A  Appendices 11 

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1

1 Background and Scope of Appraisal

Herrington Consulting has been commissioned by the Rooftop Housing Group to analyse and

quantify the provision of natural daylight and sunlight to the habitable rooms within the proposed

new apartment block, which forms part of the residential development on the site of the St

Aldate’s Church vicarage, on Reservoir Road, Gloucester.

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2 The Site and Development Proposals

2.1 Site Location

The site is located on the outer suburban edge of the city of Gloucester, in Gloucestershire, south

west England. The location of the site is shown in Figure 2.1 and the site plan included in

Appendix A.1 of this report gives a more detailed reference to the site location and layout.

Figure 2.1 – Location map of site. (Contains Ordnance Survey data © Crown copyright and

database right 2014)

2.2 The Development

The proposals for development are to, firstly demolish two of the existing buildings on site; the old

church hall and vicarage buildings. Secondly, new residential dwellings and a residential

apartment block will be constructed. The church building of St Aldate itself will be retained on the

northern edge of the site. Drawings of the proposed scheme are included in Appendix A.1 of this

report.

Site

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3 Policy and Guidance

3.1 National Planning Policy

National Planning Policy Framework (2012)

The National Planning Policy Framework adopted on the 27th March 2012, replacing the Planning

Policy Statements and Planning Policy Guidance, stipulates that “…planning policies and

decisions should always seek to secure a good standard of amenity for existing and future

occupants of land and buildings.”

National Planning Practice Guidance (2014)

The National Planning Practice Guidance was launched in 2014, creating an online resource for

planning practitioners. The guidance does not provide any further detail in terms of amenity

beyond that stated above.

3.2 Local Planning Policy

Gloucester City Council SPD Heights of Buildings: Guidelines for developers in the

Gloucester Area (November 2008)

Page 30 of the document states, “Applicants will be required to: Describe how the proposals are

designed to provide high quality spaces around the development, including issues relating to

daylight and over-shadowing, landscaping, surveillance, safety and the hierarchy of spaces.”

3.3 Best Practice Guidance

In the absence of official national planning guidance / legislation on daylight and sunlight, the

most recognised guidance document is published by the Building Research Establishment and

entitled ‘Site Layout Planning for Daylight and Sunlight – A Guide to Good Practice’, Second

Edition, 2011; herein referred to as the ‘BRE Guidelines’.

The BRE Guidelines are not mandatory and themselves state that they should not be used as an

instrument of planning policy, however in practice they are heavily relied upon as they provide a

good guide to approach, methodology and evaluation of daylight and sunlight provision within

new developments.

In conjunction with the BRE Guidelines further guidance is given within the British Standard (BS)

8206-2:2008: ‘Lighting for buildings - Part 2: Code of practice for daylighting’.

In this assessment the BRE Guidelines have been used to establish the extent to which the

Proposed Development meets current best practice guidelines.

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4 Assessment Techniques

4.1 Background

Natural light refers to both daylight and sunlight. However, a distinction between these two

concepts is required for the purpose of analysis and quantification of natural light in buildings. In

this assessment, the term ‘Daylight’ is used for natural light where the source is the sky in

overcast conditions, whilst ‘Sunlight’ refers specifically to the light coming directly from the sun.

4.2 Average Daylight Factor

The Average Daylight Factor (ADF) method calculates the average illuminance within a room as a

proportion of the illuminance available to an unobstructed point outdoors under a sky of known

luminance and luminance distribution. This is the most detailed of the daylight calculations and

considers the physical nature of the room behind the window, including; window transmittance,

and surface reflectivity.

This method of quantifying the availability of daylight within a room does, however, require the

internal layout to be known and is generally only used for establishing daylight provision in new

rooms. The BRE Guide sets out the following guidelines for the assessment of the ADF:

If a predominantly daylit appearance is required, then the ADF should be 5% or more if there is no

supplementary electric lighting, or 2% or more if supplementary electric lighting is provided. In

dwellings, the following minimum average daylight factors should be achieved: 1% in bedrooms,

1.5% in living rooms and 2% in kitchens.

4.3 Annual Probable Sunlight Hours

It is also possible to quantify the amount of sunlight available to a new development and the

recognised methodology for undertaking this analysis is the Annual Probable Sunlight Hours

(APSH) method.

The APSH tests is applied by calculating the number of probable sunlight hours that will be

received by each window. In general terms, it is considered that adequate levels of sunlight will

be available if the centre point of the window receives more than one quarter of APSH, including

at least 5% APSH in the winter months between 21st September and the 21st March.

It should also be noted that where rooms have windows on more than one elevation, it is

acceptable to sum the non-coincident sunlight hours to achieve a ‘room total’. This approach is

acknowledged by the BRE Guidelines and facilitates a greater understanding of the sunlight

received within a room by taking into account the fact that some windows will receive sunlight at

different times during the day.

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5 Assessment Methodology

5.1 Method of Baseline Data Collation

The following data and information has been used to inform this study:

OS Mastermap mapping

Measured survey data (A.D. Horner Ltd, Worcestershire – March 2012)

Scheme drawings in AutoCAD format (BM3 Architects, Birmingham – June 2016)

Aerial photography (Google Maps and Bing)

5.2 Numerical Modelling

The numerical analysis used in this assessment has been undertaken using the Waldrum Tools

(Version 2.1) software package.

5.3 Calculation Assumptions

The following assumptions have been made when undertaking the analysis:

When assessing the ADF for internal rooms and in the absence of specific information,

the following parameters are assumed:

- Glazing type is assumed to be double glazing (Pilkington K Glass 4/16/4 Argon

filled) with a light transmittance value of 0.75 (value for double glazed unit not per

pane)

- Correction factor for frames and glazing bars = 0.8

- Where information from the designer is not available, the following values are used

to derive the Maintenance Factor applied to the transmittance values.

Location /

setting

Building type (Residential –

good maintenance)

Exposure

(normal)

Special

exposure

Maintenance

Factor

Urban 8% x 1.0 x 1.0 0.94

Rural / suburban 4% x 1.0 x 1.0 0.97

Table 5.1 – Parameters used for deriving Maintenance Factor (refer to BS 8206-2:2008

Tables A3, A4 and A5

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The reflectance values used in the ADF analysis are as shown in Table 5.3 unless

specified otherwise by the designer.

Surface Value

Grass 10%

Pavement 20%

External brickwork 30%

External walls (concrete) 40%

External rendered wall (painted white) 60%

Internal walls (painted pale cream) 81%

Internal ceiling (painted white) 85%

Internal flooring 30%

Table 5.2 – Reflectance values used in ADF analysis

Where the internal arrangements and room uses have been estimated, it should be

noted that this has no bearing upon the tests for APSH because the reference point is

at the centre of the window being tested and windows have been accurately drawn

from the survey information. It is relevant to the daylight distribution assessment, but in

the absence of suitable plans, estimation is a conventional approach.

In areas where survey data has not been provided or needs to be supplemented with

additional information, photographs, OS mapping and brick counts have been used in

the process of building the 3D model of the surrounding and existing buildings.

When analysing the effect of the new building on the existing buildings, the shading

effect of the existing trees has been ignored. This is the recommended practice where

deciduous trees that do not form a dense belt or tree line are present (BRE Guidelines

– Appendix H). This is because daylight is at its scarcest and most valuable in the

winter when most trees will not be in leaf.

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7

6 Daylight Provision Within New Rooms

6.1 Average Daylight Factor

Using the analytical techniques discussed in Sections 4 and 5, the Average Daylight Factor (ADF)

has been calculated for the habitable rooms within the proposed development. In accordance with

the guidance set out in both the BRE Guidelines and the BS 8206-2:2008 document, rooms that

have a dual use, i.e. an open plan kitchen and lounge, are assessed as a single room and

assessed against the room use with the highest daylighting requirement. For example, where a

room includes both living and kitchen spaces, then the higher daylighting requirement of the

kitchen is adopted as the threshold target.

However, where kitchens have a floor area that is less than 13m2 then it is appropriate to assume

that this is not a habitable room and the daylight tests need not be applied. The detailed model

outputs are included in the appendix of this report and from these it can be seen that all of the

habitable rooms within the proposed apartment building will receive well in excess of the minimum

ADF values prescribed for their associated room uses by the BRE Guidelines and the British

Standards.

Consequently, it is possible to conclude in accordance with the BRE Guidelines that all new

rooms will receive good levels of natural daylight and will therefore have reduced reliance on

supplementary electric lighting.

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7 Sunlight Provision Within New Rooms

7.1 Annual Probable Sunlight Hours Assessment

The BRE Guidelines provide guidance in respect of sunlight quality for new developments stating:

“in housing, the main requirement for sunlight is in living rooms, where it is valued at any time of

the day, but especially in the afternoon. Sunlight is also required in conservatories. It is viewed as

less important in bedrooms and in kitchens where people prefer it in the morning rather than the

afternoon.”

The assessment criteria set out within the BRE document are discussed in Section 4.3 of this

report, but in general terms the overall objective sought by the guidelines is as follows: “In

general, a dwelling or non-domestic building which has a particular requirement for sunlight, will

appear reasonably sunlit provided that at least one main window faces within 90 degrees of due

south; and the centre of at least one window to a main living room can receive 25% of annual

probable sunlight hours, including at least 5% of annual probable sunlight hours in the winter

months between 21st September and 21st March.

An observation from paragraph 5.3 of the BS 8206-2 is that with regards to sunlight duration, the

degree of satisfaction is related to the expectation of sunlight. Therefore, if a room is north facing

or if the building is in a densely-built urban area, the absence of sunlight is more acceptable than

when its exclusion seems arbitrary.

For the windows of the proposed new apartment rooms, the APSH test has been undertaken. The

detailed model outputs are included in Appendix A.4 of this report.

For new development, the BRE Guidance recommends that main windows to living rooms or

LKDs should face within 90 degrees of due south, to ensure that the dwelling will receive

reasonable amounts of sunlight throughout the day. Due to various site constraints it is not always

possible to ensure that all habitable rooms within a new development will have primary windows

facing south. Consequently, some secondary windows or windows serving rooms with lower

expectations of sunlight (such as kitchens or bedrooms) will have windows which face within 90

degrees of due north. The BRE guidance acknowledges this point.

When considering the sunlight provision to the proposed apartment block, it can be seen from the

APSH results in Appendix A.4 that each main living room or LKD will achieve well in excess of the

recommended APSH target values; for both the whole year APSH, and the winter period APSH.

Consequently, in accordance with the BRE Guidelines it is possible to conclude that all proposed

new apartments will be well sunlit. It is also evident that those rooms that have a lower

expectation of sunlight, i.e. bedrooms, still receive reasonable levels of direct sunlight throughout

most of the year.

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In summary, all of the assessed apartments have been shown to meet or exceed the

recommended BRE target values for direct sunlight.

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8 Conclusions

The detailed analysis undertaken as part of this assessment has examined the provision of

natural daylight and sunlight to the habitable rooms of the residential apartment building within the

development at the site of St Aldate’s vicarage, on Reservoir Road, in Gloucester.

Using detailed numerical modelling applications, the Average Daylight Factor (ADF) has been

quantified for all habitable rooms within the proposed apartment building. In line with the

assessment criteria prescribed by the BRE Guidelines, it has been shown that the provision of

natural daylight will exceed the minimum required threshold set out in both the BRE Guidelines

and the British Standard (BS) 8206-2:2008: ‘Lighting for buildings - Part 2: Code of practice for

daylighting’.

When considering the amount of sunlight that would be available to the main living rooms or

LKDs within the proposed apartment building, it has been possible to show that all main rooms

within each apartment will receive APSH values in excess of the BRE recommended target

values. Therefore, in accordance with the BRE Guidelines, it is possible to conclude that all

apartments within this residential building will benefit from the strong amenity benefits that are

derived from direct sunlight.

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A Appendices

A.1 Appendix A.1 – Scheme Drawings

A.2 Appendix A.2 – Daylight Model Drawings

A.3 Appendix A.3 – Average Daylight Factor Calculations

A.4 Appendix A.4 – Annual Probable Sunlight Hours (APSH) Calculations

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Appendix A.1 – Scheme Drawings

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Appendix A.2 Daylight Model Drawings

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905

Not to scale

C O N S U L T I N G L I I TM E D

Unit 6 - Barham Business Park

Elham Valley Road

Canterbury

Kent CT4 6DQ

Tel : 01227 833855

[email protected]

www.herringtonconsulting.co.uk

Legend

Existing Site Location Plan

10/06/1600

Rev Description Date

First issue

CLIENT

PROJECT

Reservoir Rd, Gloucester

SCALE PROJ REF

NMM

DRAWN BY

NMM

ANALYST

DWG REF.

0

REV.

N

S

3D Model - Existing & Proposed 3D Views

The Rooftop Housing Group

Existing Site View

Proposed Site View

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905

Not to scale

C O N S U L T I N G L I I TM E D

Unit 6 - Barham Business Park

Elham Valley Road

Canterbury

Kent CT4 6DQ

Tel : 01227 833855

[email protected]

www.herringtonconsulting.co.uk

Legend

Existing Site Location Plan

10/06/1600

Rev Description Date

First issue

CLIENT

PROJECT

Reservoir Rd, Gloucester

SCALE PROJ REF

NMM

DRAWN BY

NMM

ANALYST

DWG REF.

0

REV.

N

S

3D Model - Existing & Proposed 3D Views

The Rooftop Housing Group

Existing Site View

Proposed Site View

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C O N S U L T I N G L I I TM E D

Unit 6 - Barham Business Park

Elham Valley Road

Canterbury

Kent CT4 6DQ

Tel : 01227 833855

[email protected]

www.herringtonconsulting.co.uk

Legend

Proposed Location Plan

08/07/1600

Rev Description Date

First issue

CLIENT

PROJECT

SCALE PROJ REFDRAWN BYANALYST

DWG REF.

0

REV.

N

S

905

Not to scale

Reservoir Rd, Gloucester

NMMNMM

3D Model - Proposed Window & Room

The Rooftop Housing Group

Location Plans

Proposed Ground Floor Proposed First Floor Proposed Second Floor

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Appendix A.3 Average Daylight Factor Calculations

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Floor Room Room Use. Window Glass Transmittance

Glazed Area

Clear Sky Angle

Proposed

Room Surface

Area

Average Surface

Reflectance

Below Working

Plane Factor

ADFProposed

Req'dValue Pass/Fail

Ground R1 Bedroom W4‐L 0.78 0.93 86.27 58.49 0.65 0.15 0.28

W4‐U 0.78 2.05 84.52 58.49 0.65 1.00 4.01

4.29 1 PASS

Ground R2 Bedroom W3‐L 0.78 0.58 84.67 44.67 0.65 0.15 0.22

W3‐U 0.78 1.29 83.35 44.67 0.65 1.00 3.25

3.47 1 PASS

Ground R3 LKD W1 0.78 0.92 69.58 87.84 0.65 1.00 0.98

W2‐L 0.78 0.93 86.63 87.84 0.65 0.15 0.19

W2‐U 0.78 2.05 84.82 87.84 0.65 1.00 2.68

3.84 2 PASS

Ground R1 LKD W1 0.78 0.92 67.91 87.84 0.65 1.00 0.96

W2‐L 0.78 0.93 78.39 87.84 0.65 0.15 0.17

W2‐U 0.78 2.05 77.81 87.84 0.65 1.00 2.46

3.58 2 PASS

Ground R2 Bedroom W3‐L 0.78 0.58 77.12 44.67 0.65 0.15 0.20

W3‐U 0.78 1.29 76.88 44.67 0.65 1.00 2.99

3.20 1 PASS

Ground R3 Bedroom W4‐L 0.78 0.93 78.55 58.49 0.65 0.15 0.25

W4‐U 0.78 2.05 77.96 58.49 0.65 1.00 3.70

3.95 1 PASS

Ground R1 LD W1‐L 0.78 0.93 78.50 64.62 0.65 0.15 0.23

W1‐U 0.78 2.05 77.93 64.62 0.65 1.00 3.34

W2‐L 0.78 0.35 73.58 64.62 0.65 0.15 0.08

W2‐U 0.78 0.78 73.71 64.62 0.65 1.00 1.20

4.85 1.5 PASS

Ground R2 Bedroom W3‐L 0.78 0.93 85.78 63.67 0.65 0.15 0.25

W3‐U 0.78 2.05 84.12 63.67 0.65 1.00 3.66

W4‐L 0.78 0.35 79.60 63.67 0.65 0.15 0.09

W4‐U 0.78 0.78 78.90 63.67 0.65 1.00 1.30

5.31 1 PASS

Ground R1 Bedroom W1‐L 0.78 0.35 79.47 63.67 0.65 0.15 0.09

W1‐U 0.78 0.78 78.80 63.67 0.65 1.00 1.30

W2‐L 0.78 0.93 85.27 63.67 0.65 0.15 0.25

W2‐U 0.78 2.05 83.70 63.67 0.65 1.00 3.65

5.29 1 PASS

Ground R2 LD W3‐L 0.78 0.35 73.53 64.62 0.65 0.15 0.08

W3‐U 0.78 0.78 73.67 64.62 0.65 1.00 1.20

W4‐L 0.78 0.93 78.38 64.62 0.65 0.15 0.23

W4‐U 0.78 2.05 77.85 64.62 0.65 1.00 3.34

4.85 1.5 PASS

Ground R1 LKD W1‐L 0.78 0.58 76.92 101.50 0.65 0.15 0.09

W1‐U 0.78 1.29 76.77 101.50 0.65 1.00 1.32

W2‐L 0.78 0.93 78.27 101.50 0.65 0.15 0.15

W2‐U 0.78 2.05 77.80 101.50 0.65 1.00 2.13

W3‐L 0.78 0.93 80.55 101.50 0.65 0.15 0.15

W3‐U 0.78 2.05 79.82 101.50 0.65 1.00 2.18

6.01 2 PASS

Ground R2 Bedroom W4‐L 0.78 0.93 84.31 66.65 0.65 0.15 0.24

W4‐U 0.78 2.05 82.89 66.65 0.65 1.00 3.45

3.69 1 PASS

Plot 02

Plot 03

Plot 04

Plot 05

Project Name: Reservoir Road, Gloucester.Project No: 905Report Title: D&SArchitect: BM3Scheme Iteration No: 905_Model_Rev1Iteration Description: ADF (Daylight) Calculations to New Habitable Rooms in Proposed Apartment BuildingDate of Analysis: 06/07/2016Key drawings: See Appendix

Plot 01

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Ground R3 Bedroom W5‐L 0.78 0.58 82.88 57.83 0.65 0.15 0.17

W5‐U 0.78 1.29 81.84 57.83 0.65 1.00 2.46

2.63 1 PASS

First R1 Bedroom W2‐L 0.78 0.58 85.13 44.67 0.65 0.15 0.23

W2‐U 0.78 1.29 83.80 44.67 0.65 1.00 3.26

3.49 1 PASS

First R2 LKD W3‐L 0.78 0.93 87.06 87.84 0.65 0.15 0.19

W3‐U 0.78 2.05 85.22 87.84 0.65 1.00 2.69

W4 0.78 0.92 74.99 87.84 0.65 1.00 1.06

3.93 2 PASS

First R3 Bedroom W1‐L 0.78 0.93 86.83 58.49 0.65 0.15 0.28

W1‐U 0.78 2.05 85.04 58.49 0.65 1.00 4.03

4.31 1 PASS

First R1 Bedroom W4‐L 0.78 0.93 81.62 58.49 0.65 0.15 0.26

W4‐U 0.78 2.05 80.89 58.49 0.65 1.00 3.84

4.10 1 PASS

First R2 Bedroom W3‐L 0.78 0.58 80.06 44.67 0.65 0.15 0.21

W3‐U 0.78 1.29 79.70 44.67 0.65 1.00 3.10

3.31 1 PASS

First R3 LKD W1 0.78 0.92 73.55 87.84 0.65 1.00 1.04

W2‐L 0.78 0.93 81.49 87.84 0.65 0.15 0.17

W2‐U 0.78 2.05 80.78 87.84 0.65 1.00 2.55

3.76 2 PASS

First R1 LD W1‐L 0.78 0.93 81.62 64.62 0.65 0.15 0.24

W1‐U 0.78 2.05 80.90 64.62 0.65 1.00 3.47

W2‐L 0.78 0.35 76.29 64.62 0.65 0.15 0.08

W2‐U 0.78 0.78 76.32 64.62 0.65 1.00 1.24

5.03 1.5 PASS

First R2 Bedroom W3‐L 0.78 0.93 86.52 63.67 0.65 0.15 0.26

W3‐U 0.78 2.05 84.80 63.67 0.65 1.00 3.69

W4‐L 0.78 0.35 80.30 63.67 0.65 0.15 0.09

W4‐U 0.78 0.78 79.58 63.67 0.65 1.00 1.31

5.35 1 PASS

First R1 Bedroom W1‐L 0.78 0.35 80.22 63.67 0.65 0.15 0.09

W1‐U 0.78 0.78 79.52 63.67 0.65 1.00 1.31

W2‐L 0.78 0.93 86.18 63.67 0.65 0.15 0.25

W2‐U 0.78 2.05 84.55 63.67 0.65 1.00 3.68

5.34 1 PASS

First R2 LD W3‐L 0.78 0.35 76.27 64.62 0.65 0.15 0.08

W3‐U 0.78 0.78 76.30 64.62 0.65 1.00 1.24

W4‐L 0.78 0.93 81.58 64.62 0.65 0.15 0.24

W4‐U 0.78 2.05 80.88 64.62 0.65 1.00 3.47

5.03 1.5 PASS

First R1 LKD W1‐L 0.78 0.58 80.07 101.50 0.65 0.15 0.09

W1‐U 0.78 1.29 79.75 101.50 0.65 1.00 1.37

W2‐L 0.78 0.93 81.63 101.50 0.65 0.15 0.15

W2‐U 0.78 2.05 80.94 101.50 0.65 1.00 2.21

W3‐L 0.78 0.93 83.36 101.50 0.65 0.15 0.15

W3‐U 0.78 2.05 82.34 101.50 0.65 1.00 2.25

6.23 2 PASS

First R2 Bedroom W4‐L 0.78 0.93 85.55 66.65 0.65 0.15 0.24

W4‐U 0.78 2.05 84.07 66.65 0.65 1.00 3.50

3.74 1 PASS

First R3 Bedroom W5‐L 0.78 0.58 83.98 57.83 0.65 0.15 0.17

W5‐U 0.78 1.29 82.90 57.83 0.65 1.00 2.49

2.66 1 PASS

Plot 07

Plot 08

Plot 09

Plot 10

Plot 06

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Second R1 Bedroom W1‐L 0.78 1.07 79.89 73.22 0.65 0.15 0.24

W1‐U 0.78 1.91 80.14 73.22 0.65 1.00 2.82

3.06 1 PASS

Second R2 LKD W2‐L 0.78 0.99 81.90 100.13 0.65 0.15 0.16

W2‐U 0.78 2.05 83.45 100.13 0.65 1.00 2.31

W3‐L 0.78 0.62 82.96 100.13 0.65 0.15 0.10

W3‐U 0.78 1.29 82.50 100.13 0.65 1.00 1.43

4.01 2 PASS

Second R1 Bedroom W1‐L 0.78 0.99 84.63 60.70 0.65 0.15 0.28

W1‐U 0.78 2.05 83.78 60.70 0.65 1.00 3.83

4.11 1 PASS

Second R2 LKD W2‐L 0.78 0.99 84.63 99.38 0.65 0.15 0.17

W2‐U 0.78 2.05 83.80 99.38 0.65 1.00 2.34

2.51 2 PASS

Plot 12

Plot 11

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15

Appendix A.4 APSH Calculations

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Floor Room Room Use. Window Scenario Available Sunlight Hours Ref. Ref. Ref. Annual % Winter % Annual % Winter %

Plot 01

Ground R1 Bedroom W4 Proposed 18 2 18 2

Ground R2 Bedroom W3 Proposed 18 2 18 2

Ground R3 LKD W1 Proposed 59 17

Ground R3 LKD W2 Proposed 18 2 62 19

Plot 02

Ground R1 LKD W1 Proposed 62 20

Ground R1 LKD W2 Proposed 78 25 93 25

Ground R2 Bedroom W3 Proposed 78 25 78 25

Ground R3 Bedroom W4 Proposed 78 25 78 25

Plot 03

Ground R1 LD W1 Proposed 76 25

Ground R1 LD W2 Proposed 77 25 77 25

Ground R2 Bedroom W3 Proposed 18 2

Ground R2 Bedroom W4 Proposed 18 2 18 2

Plot 04

Ground R1 Bedroom W1 Proposed 18 2

Ground R1 Bedroom W2 Proposed 18 2 18 2

Ground R2 LD W3 Proposed 77 25

Ground R2 LD W4 Proposed 78 25 78 25

Plot 05

Ground R1 LKD W1 Proposed 75 25

Ground R1 LKD W2 Proposed 76 26

Ground R1 LKD W3 Proposed 31 5 76 26

Ground R2 Bedroom W4 Proposed 18 2 18 2

Ground R3 Bedroom W5 Proposed 18 2 18 2

Plot 06

First R1 Bedroom W2 Proposed 18 2 18 2

First R2 LKD W3 Proposed 18 2

First R2 LKD W4 Proposed 64 21 65 22

First R3 Bedroom W1 Proposed 18 2 18 2

Project Name: Reservoir Road, Gloucester.Project No: 905Report Title: D&SArchitect: BM3Scheme Iteration No: 905_Model_Rev1Iteration Description: APSH (Sunlight) Calculations to New Habitable Rooms in Proposed Apartment BuildingDate of Analysis: 06/07/2016Key drawings: See Appendix

Room Total

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Plot 07

First R1 Bedroom W4 Proposed 79 26 79 26

First R2 Bedroom W3 Proposed 79 26 79 26

First R3 LKD W1 Proposed 64 21

First R3 LKD W2 Proposed 79 26 95 26

Plot 08

First R1 LD W1 Proposed 80 27

First R1 LD W2 Proposed 80 27 80 27

First R2 Bedroom W3 Proposed 18 2

First R2 Bedroom W4 Proposed 18 2 18 2

Plot 09

First R1 Bedroom W1 Proposed 18 2

First R1 Bedroom W2 Proposed 18 2 18 2

First R2 LD W3 Proposed 80 27

First R2 LD W4 Proposed 79 26 80 27

Plot 10

First R1 LKD W1 Proposed 77 27

First R1 LKD W2 Proposed 80 27

First R1 LKD W3 Proposed 32 5 81 27

First R2 Bedroom W4 Proposed 18 2 18 2

First R3 Bedroom W5 Proposed 18 2 18 2

Plot 11

Second R1 Bedroom W1 Proposed 18 2 18 2

Second R2 LKD W2 Proposed 76 25

Second R2 LKD W3 Proposed 81 28 81 28

Plot 12

Second R1 Bedroom W1 Proposed 81 28 81 28

Second R2 LKD W2 Proposed 81 28 81 28