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Amendment to GPDOAmendment to GPDO
Householder Permitted Householder Permitted DevelopmentDevelopment
ApplicationApplication
•Made 4Made 4thth September 2008 September 2008•Laid before Parliament 10Laid before Parliament 10thth Sept Sept•Come into force 1Come into force 1stst October 2008 October 2008•Classes A to HClasses A to H
• Class A – Enlargement, Class A – Enlargement, improvement or other alteration to improvement or other alteration to a dwelling housea dwelling house
Two storey extensionTwo storey extension
Two storey extensions are not permitted within a Conservation Area
To NoteTo Note
Two storey extensionTwo storey extension
.
NO TWO STOREY SIDE EXTENSIONS
Area of extensionArea of extension
Area of extension must be no more than half the area of land around the existing house including any other outbuildings
.
A
D
CB
50% of (Area A + Area B)- (Area C) = New Area D
Depth not to exceed 3 metres
Depth not more than 3 mDepth not more than 3 m
3m
.
No closer than 7 metres to rear boundary
No closer than 7 metres to rear boundaryNo closer than 7 metres to rear boundary
7m
.
Height of eaves Height of eaves
Maximum eaves height no higher than height of eaves of existing house
Height of roof Height of roof
Height of new ridge height of extension no higher than existing house
.
Roof pitch Roof pitch
Roof pitch of extensions higher than one storey to match roof pitch of existing house
.
Materials to match existing Materials to match existing
Materials to be similar existing house (other than a conservatory)
.
Eaves height within 2 m of boundaryEaves height within 2 m of boundary
If within 2 metres of a boundary eaves height must not exceed 3 metres
2 metres
3m
.
No extensions at front or side fronting a highwayNo extensions at front or side fronting a highway
No extension beyond principal front or side elevation fronting a highway
.
No verandas or balconiesNo verandas or balconies
No verandas or balconies
.
Side facing windowSide facing window
Any side facing window to be obscure glazed and fixed shut OR any opening to be 1.7m above the floor
1.7m
.
• Class A – Enlargement, Class A – Enlargement, improvement or other alteration to improvement or other alteration to a dwelling housea dwelling house
Single storey extensionSingle storey extension
Single storey side extensions are not permitted within a Conservation Area
To NoteTo Note
Single storey extensionSingle storey extension
.
No more than half areaNo more than half area
No more half the area of land around the original house to be covered by additions and other buildings
.
Single storey extensionSingle storey extension
No extensions forward of the principal or side elevation fronting a highway
.
Not higher than roof of original houseNot higher than roof of original house
Extensions no higher than the roof or eaves of the original house
.
Depth of single storey rear extensionDepth of single storey rear extension
Maximum depth of single storey extension is 4 metres for a detached dwelling and 3 metres for an attached dwelling
.
Height of single storey rear extensionHeight of single storey rear extension
Maximum height of a single storey extension is 4 metres
4 m
.
Eaves height single storey rear extensionEaves height single storey rear extension
Maximum eaves of a single storey extension within 2 metres of the boundary is 3 metres
3 m
2 m
.
Width of side extensionWidth of side extension
All side extensions to be single storey with maximum height of 4 metres and width no more than half that of original house
4 m
Width no greater than half width of width of original house
No side extensions permitted within conservation areas
.
Materials to matchMaterials to match
Materials to be similar appearance to existing dwelling (other than a conservatory)
.
No cladding if in Conservation AreaNo cladding if in Conservation Area
If in conservation area, no cladding to exterior of existing dwelling
.
• Class B – Enlargement of a dwelling Class B – Enlargement of a dwelling house consisting of an addition or house consisting of an addition or alteration to its roofalteration to its roof
No additions or alterations to a roof of a dwelling house is permitted if the dwelling is situated within a Conservation Area
To NoteTo Note
Not beyond the plane of roof facing a highwayNot beyond the plane of roof facing a highway
No roof extensions beyond the plane of the existing roof slope of the principal elevation that fronts a highway
.
Volume allowedVolume allowed
Volume allowance is 40 cu metres for a terraced house and 50 cu metres for detached and semi-detached houses
.
No higher than highest part of roof of dwellingNo higher than highest part of roof of dwelling
Highest part of extension no higher than highest part of original roof of dwelling
.
MaterialsMaterials
Materials of extension to match existing dwelling
.
No verandas or balconiesNo verandas or balconies
No balconies or verandas
.
Obscure glazing on side elevationsObscure glazing on side elevations
Side facing windows to be obscure glazed and fixed shut. Any opening to be 1.7 m above floor level
.
To be set back at least 20 cmTo be set back at least 20 cm
Roof extensions to be set back, as far as practicable, at least 20 cm from the eaves
.
• Class C – Any other alteration to Class C – Any other alteration to the roof of a dwelling house the roof of a dwelling house
Projecting beyond plane of existing roofProjecting beyond plane of existing roof
Not to project by more than 150 mm from existing roof plane
.
Obscure glazedObscure glazed
Side facing windows to be obscure glazed and non-opening. Any opening to be 1.7 m above the floor
.
No alteration higher than existing roofNo alteration higher than existing roof
No alteration to be higher than the highest part of the existing roof
.
• Class D – Erection or construction Class D – Erection or construction of a porch outside any external of a porch outside any external door of a dwelling house door of a dwelling house
Porch ground areaPorch ground area
The ground floor area (measured externally) must not exceed 3 sq metres
.
Height of porchHeight of porch
No part of the porch to be more than 3 metres above ground level
.
3 m
Not within two metres of highwayNot within two metres of highway
No part of the porch is to be within 2 metres of any boundary of the dwelling house and a highway.
2 m
• Class E – The provision within the Class E – The provision within the curtilage of a dwelling house of any curtilage of a dwelling house of any building or enclosure, swimming or other building or enclosure, swimming or other pool required for a purpose incidental to pool required for a purpose incidental to the enjoyment of the dwelling house as the enjoyment of the dwelling house as such, or the maintenance, improvement such, or the maintenance, improvement or other alteration of such a building or or other alteration of such a building or enclosure or, a container used for enclosure or, a container used for domestic heating purposes for the domestic heating purposes for the storage of oil or liquid petroleum gas storage of oil or liquid petroleum gas
Outbuildings in side elevation within Outbuildings in side elevation within Conservation AreaConservation Area
Within a Conservation Area, no buildings, enclosures, pools or containers are permitted at the side of properties
.
No Two Storey No Two Storey
No detached building container to be more than 10 sqm more than 20m from any wall of dwelling
No building forward of principal elevation No building forward of principal elevation fronting a highwayfronting a highway
No outbuilding forward of the principal elevation fronting a highway.
Size up to 50% garden areaSize up to 50% garden area
More than half the area of land around the original house would be covered by additions or other buildings
.
Height with pitched roofHeight with pitched roof
With a dual pitched roof, height of outbuilding not to exceed 4 metres.
4 m
Height with any other roofHeight with any other roof
Height of outbuilding with any other roof not to exceed 3 metres.
3 m
Height of eaves of outbuildingHeight of eaves of outbuilding
Height of eaves of any outbuilding not to exceed 2.5 metres
.
2.5 m
Height of building within 2 metres of boundaryHeight of building within 2 metres of boundary
If building within 2 metres of any boundary, maximum height must not exceed 2.5 metres
.
2.5 m
No verandas, balconies or platformsNo verandas, balconies or platforms
No verandas, balconies or raised platform (raised platform means a platform with a height greater than 300 mm)
.
Listed BuildingListed Building
Within the curtilage of a listed building, ANY outbuilding will require planning
permission.
I am a Listed Building
• Class F – The provision within the Class F – The provision within the curtilage of a dwelling house of a hard curtilage of a dwelling house of a hard surface for any purpose incidental to the surface for any purpose incidental to the enjoyment of the dwelling house as such enjoyment of the dwelling house as such OR the replacement in whole or in part OR the replacement in whole or in part of such a surface of such a surface
Hard surface between wall and highwayHard surface between wall and highway
If hard surface situated between a wall forming the principal elevation of a house and a highway and ground area exceeds 5 square metres, hard surface must be made of porous materials or rainwater directed to a lawn or border to drain naturally
.
Rainwater to lawn or border
Permeable (or porous) surfaces:
Gravel;
Permeable concrete block;
Porous asphalt
• Class G – The installation, Class G – The installation, alteration or replacement of a alteration or replacement of a chimney, flue or soil and vent pipe chimney, flue or soil and vent pipe on a dwelling house on a dwelling house
Installation of flue, chimney or soil and vent pipeInstallation of flue, chimney or soil and vent pipe
The height of the chimney, flue or soil and vent pipe must not exceed the highest part of the roof by 1 metres or more
.
1 m
1 m
In a conservation area no flue, chimney or soil and vent pipe must be installed on a wall or roof slope that fronts a highway and forms the principal or side elevation of the house
• Class H – The installation, Class H – The installation, alteration or replacement of a alteration or replacement of a microwave antenna on a dwelling microwave antenna on a dwelling house or within the curtilage of a house or within the curtilage of a dwelling house dwelling house
Installation of micro wave antennaInstallation of micro wave antennaNumber of antennas permittedNumber of antennas permitted
No more than two antennas permitted either on or within the curtilage of the house.
Antenna SizeAntenna Size
One antenna may exceed 60 cm but may not exceed 100 cm.
.
Antenna Size on roof that has a chimneyAntenna Size on roof that has a chimney
If the house has a chimney, the highest part of the antenna must not be higher than highest part of the chimney OR 60 cm above the highest part of the ridge tiles, WHICHEVER IS THE LOWER
.
Antenna installed on a chimneyAntenna installed on a chimney
If installed on a chimney, the antenna must not exceed 60 cm and must not protrude above the chimney
.
Antenna installed on a roof without a chimneyAntenna installed on a roof without a chimney
If installed on the roof without a chimney, highest part of antenna must not be higher than the highest part of the roof
.
Antenna installed WITHIN A CONSERVATION Antenna installed WITHIN A CONSERVATION AREAAREA
WITHIN A CONSERVATION AREA, no antenna must be installed on a chimney, wall, roof slope which faces onto and is visible from a highway
.
ConditionsConditions•Shall be sited so far as practical to minimise its effect on the external building
•Removed if no longer required
Questions?Questions?
