Single storey rear extension
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Heritage & Conservation
Residential Amenity
Extensions
Inspector’s Reasoning
Appeal Decision
Site visit made on 22 June 2017
by Julie Dale Clark BA (Hons) MCD DMS MRTPI
an Inspector appointed by the Secretary of State for Communities and Local Government
Decision date: 17 July 2017
Appeal Ref: APP/E5330/D/17/3174795
52 Straightsmouth, Greenwich SE10 9LD
The appeal is made under section 78 of the Town and Country Planning Act 1990 against
a refusal to grant planning permission.
The appeal is made by Mr & Mrs Morton against the decision of the Council of the Royal
Borough of Greenwich.
The application Ref 16/4154/F, dated 14 December 2016, was refused by notice dated
15 March 2017.
The development proposed is single storey rear extension.
Decision
1. The appeal is allowed and planning permission is granted for a single storey
rear extension at 52 Straightsmouth, Greenwich SE10 9LD in accordance with
the terms of the application, Ref 16/4154/F, dated 14 December 2016, subject
to the following conditions:
1) The development hereby permitted shall begin not later than three years
from the date of this decision.
2) The materials to be used in the construction of the external surfaces of the
extension hereby permitted shall match those used in the existing building.
3) The development hereby permitted shall be carried out in accordance with
the following approved plans:-
Drawing Nos A101 & A102.
Main Issues
2. I consider that the main issues are:-
whether the proposed extension would preserve or enhance the
character or appearance of the West Greenwich Conservation Area.
the effect of the extension on the living conditions of occupiers of the
existing dwelling.
Reasons
Conservation Area
3. The appeal site is within the West Greenwich Conservation Area and I have had
regard to the fact that Section 72(1) of the Planning (Listed Buildings and
Appeal Decision APP/E5330/D/17/3174795
2
Conservation Areas) Act 1990 requires that special attention be paid to the
desirability of preserving or enhancing the character or appearance of a
Conservation Area. This is reflected in Local Plan Policy DH(h)1. Also relevant
are Local Plan Policy DH3 and London Plan Policy 7.82, which relate to heritage
assets, and the West Greenwich Conservation Area Character Appraisal3.
4. The dwelling is a mid terraced house with a single story outrigger. The proposal
would add a modest extension to the rear and replace the existing outrigger. It
would be unusual in its design with part of it having a flat roof and part having
a sloping roof but given its location to the rear of the house and its modest
scale I do not consider that its scale or design would harm the dwelling itself
nor do I consider that it would have an adverse impact on the wider area. I
therefore consider that proposal would preserve the character of the
Conservation Area and no conflict with Local Plan policies DH(h) or DH3 or
Policy 7.8 of the London Plan, would occur.
Living Conditions
5. Amongst other things the Council’s SPD4 refers to the contribution that rear
gardens make to local character and the visual and amenity standards of the
existing dwelling. Whilst the extension is modest in size, the property also
benefits from a certificate of lawfulness for an outbuilding5 . Together these
would reduce the size of the rear garden. However, at the time of my site visit
the outbuilding had not been erected and the proposal before me is for the
single storey extension.
6. The submitted plans show the outbuilding and indicate that the extension
together with the outbuilding would leave a relatively small area of garden.
However, the outbuilding does not form part of this proposal and in any case
the proposed extension would not reduce the garden to such a scale as to leave
the house with a poor standard of outdoor amenity space. I do not therefore
consider that this proposal would conflict with the SPD.
Conditions
7. I have considered the conditions suggested by the Council in the light of the
Planning Practice Guidance6. A condition requiring the materials to match the
existing house is necessary to ensure that the external appearance of the
extension is satisfactory. It is also necessary that the development shall be
carried out in accordance with the approved plans for the avoidance of doubt
and in the interests of proper planning.
Conclusion
8. I have taken all matters raised into account including London Plan Policy 7.4
and 7.6 and Local Plan policies DH1 and DH(a). Neither these nor any other
matter raised alters my conclusion. I conclude that the proposed extension
1 Royal Greenwich Local Plan Core Strategy with Detailed Policies, Adopted 30 July 2014.
2 Mayor of London The London Plan – The spatial development strategy for London consolidated with alterations
since 2011, March 2016.
3 West Greenwich Conservation Area Appraisal 2013.
4 Royal Borough of Greenwich Residential Extensions, Basements and Conversions Guidance Supplementary
Planning Document, July 2016.
5 Ref: 16/4155/CP.
6 Planning Practice Guidance, 6 March 2014.
Appeal Decision APP/E5330/D/17/3174795
3
would preserve the character of the Conservation Area and it would not have a
harmful effect on the living conditions of the occupiers of the dwelling. The
proposal would not conflict with Policy 7.8 of the London Plan or Local Plan
policies DH(h) or DH3 or the Council’s SPD. Therefore the appeal succeeds.
J D Clark
INSPECTOR
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