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Official casework recordDismissedCurrent release

Appeal 3287542

Public case and site metadata stored from the official casework database, including fields that were empty in the source release.

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Official decision document

The decision, section by section

8 sections

Read the development description and the Inspector’s text from the official decision PDF in source order. Source headings are retained where available. Personal and contact details are removed by an automated privacy filter; this is source material, not Rules for You analysis.

Section 01

Development description

erection of a rear mansard roof extension with 2 rear dormer windows.

  1. Section 02

    Decision

    The appeal is dismissed.

  2. Section 03

    Appeal Procedure

    The site visit was undertaken by an Appeal Planning Officer whose recommendation is set out below and to which the Inspector has had regard before deciding the appeal.

    Since the planning application was determined, the Council have published the Lambeth Local Plan 2020-2035 ([name] 2021) (the ‘Adopted Local Plan’). Whilst the Decision Notice refers to policy Q2, Q5 and Q11 in the Lambeth Local Plan 2015 and draft policy Q2, Q5 and Q11 in the Draft Revised Lambeth Local Plan 2020, these policies have now been superseded by the same policies in the Adopted Local Plan. In relation to the issues in this appeal, the wording of the policies has not materially changed and I have therefore only referred to the Adopted Local Plan policies in this appeal decision. Both parties were consulted on this approach.

  3. Section 04

    Preliminary Matters

    The description of the development on the planning application form does not fully describe the proposal. I have taken the wording used on the appeal forms in the above header as it is a more accurate description.

  4. Section 05

    Main Issue

    The main issue in the appeal is the effect of the development on the character and appearance of the host property and the terrace group.

  5. Section 06

    Reasons for the Recommendation

    The appeal property is a two storey, mid-terrace dwelling. The property is part of a terrace of neat and attractive period dwellings with consistent design features. [address] is on a hill and the dwellings step up along the road in pairs, the properties feature traditional parapet walls which screen views of the roof at the front of the terrace.

    The proposal involves a mansard roof extension that would occupy the entire roof slope of the appeal property. No increase in roof height is proposed and it will therefore not be possible to see the roof extension from the front of the terrace due to the existing parapet wall. However, from the rear it would completely alter the roofscape and this change would be visible from the rear gardens of neighbouring properties on [address] and from [address].

    It appears that none of the other properties in the terrace have been altered at roof level. The addition of development in the form of a substantial mansard roof extension to one part of the terrace would upset its existing uniformity and generally consistent appearance. The positioning and scale of the proposed dormer windows, which would not be aligned or scaled with the existing windows, would create an unbalanced and disproportionate appearance. The roof extension and dormers would be a prominent and incongruous change which would be harmful to the character and appearance of the host property and terrace.

    The use of materials and joinery details consistent with the host dwelling and retention of original design features such as chimney stacks the parapet wall and the original windows, would not address the more fundamental issues of scale and design.

    I acknowledge that the appeal property and terrace are not designated for their heritage or historic value and are not within a Conservation Area (CA). However, the appeal site is located very close to the boundary of the [address] CA, which covers an area of [address] immediately to the north of [address]. [name] have found harm to character and appearance, the harm would be localised and limited to the host dwelling and terrace group outwith the CA boundary and there would be no harm to the setting of the CA. There would also be no harm to [address] CA, which is located some distance from the appeal site. The appeal proposal would preserve the character and appearance of the CAs.

    In conclusion, the proposed development would have a harmful effect on the character and appearance of the host property and terrace group and be contrary to Policy Q2 and Q5 of the Adopted Local Plan which seek, amongst other things to protect visual amenity and local distinctiveness and design. It is also contrary to Policy Q11 of the Local Plan which seeks, amongst other things to protect architectural integrity and prevent harm to the original building and its group from roof additions and mansards.

  6. Section 07

    Conclusion and Recommendation

    For the reasons given above and having had regard to all other matters raised, I recommend that the appeal should be dismissed.

  7. Section 08

    Inspector’s Decision

    I have considered all the submitted evidence and the Appeal Planning Officer’s report and on that basis the appeal is dismissed.

Planning inspector and document dates

The official casework attribution is grouped under a one-way keyed hash and shown only by its local identifier. Decision-letter dates and page references are extracted by fixed first-page rules and checked against that authoritative record.

  • Appeal Decision

    Extracted inspector · page 1
    Inspector attribution ID 376No official casework-database value to compare
    Extracted decision date · page 1
    13 May 2022Matches the official casework database
    Extracted site visit dates
    7 February 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3287542
Application reference
21/01953/FUL
Lead case reference
Not recorded
Planning authority
London Borough of Lambeth
Planning authority code
E09000022

Casework details

The casework, procedure, development and linking details supplied by the official record.

Casework type
Householder (HAS)
Procedure
Written Representations
Development type
Householder developments
Appeal type reason
1. Refused planning permission
Appeal reason
Refusal
Type detail
Planning Appeals - Full
Jurisdiction
Transferred
Link status
Not Linked

Site and development

Published appeal-site measurements and planning designations, without the withheld precise location fields.

Site area
Not recorded
Floor space
Not recorded
Number of residences
0
Site in Green Belt
No
Agricultural holding
No
Affects setting of a listed building
Not recorded
Historic building grant made
Not recorded
Relates to a conservation area
Not recorded
Flooding is an issue
Not recorded
Site within an AONB
Not recorded
Site within an SSSI
Not recorded

Decision and dates

The published outcome and every imported case date.

Official decision
Dismissed
Decision category
Dismissed
Received date
23 November 2021
Valid date
23 November 2021
Start date
13 December 2021
Planning authority decision date
1 September 2021
Appeal decision date
13 May 2022

Case administration

Published recovery, call-in, costs and enforcement information for this case.

Redetermined
No
Bespoke
No
Date recovered
Not recorded
Date not recovered or derecovered
Not recorded
Call-in date
Not recorded
Costs applied for
Not recorded
Enforcement grounds count
Not recorded
Enforcement grounds
Not recorded

Source and catalogue history

When this record appeared in the rolling official release and when the catalogue stored it.

Source
Planning Inspectorate casework database
Source data system
Horizon
Dataset status
Current release
Catalogue record ID
15170
First seen
20 August 2026 at 14:24
Last seen
20 August 2026 at 16:26
Removed from release
Not recorded
Record created
20 August 2026 at 14:24
Record updated
24 August 2026 at 16:21