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Official casework recordSplit DecisionCurrent release

Appeal 3284092

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

10 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

the erection of a lower ground floor rear extension including new rear garden levels. Reconfiguration of the front garden.

  1. Section 02

    Decision

    The part of the appeal that relates to the reconfiguration of the front garden is dismissed.

    The part of the appeal that relates to the erection of a lower ground floor rear extension including new rear garden levels is allowed. Planning permission is granted for erection of a lower ground floor rear extension including new rear garden levels at [site address] in accordance with the terms of the application, Ref 21/01268/FUL, dated 26 March 2021, and subject to the following conditions:

    The development hereby permitted shall begin not later than 3 years from the date of this decision.

    The development hereby permitted shall be carried out in accordance with the following approved plans, insofar as they relate to the erection of a lower ground floor rear extension including new rear garden levels: BR-HH-A-A.00 [name], BR-HH-A-A.01 [name], BR-HH-A-A.02 [name], BR-HH-A-A.11 [name], BR-HH-A-A.21 [name] and BR-HH-A-G.01 [name].

    The materials to be used in the construction of the external surfaces of the development hereby permitted shall match those used in the existing building.

  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.

  3. Section 04

    Procedural Matters

    From the evidence before me and my observations on site, I agree with the Council that the proposal would result in an excessively large excavation to the front of the property that would be detrimental to the character and appearance of the area. The appellant has suggested they wish to alter and resubmit the proposal insofar as it relates to the reconfiguration of the front garden and have therefore requested a split decision. As the works to the rear are severable from the reconfiguration of the front garden, I am satisfied that would be appropriate should the proposed works to the rear be acceptable.

    On 20 July 2021 the Government published a revised version of the National Planning Policy Framework (the Framework). I have had regard to this as a material consideration however, planning decisions must still be made in accordance with the development plan unless material considerations indicate otherwise. The issues most relevant to this appeal remain unaffected by the revisions to the Framework. I am therefore satisfied that there is no requirement to seek further submissions on the revised Framework, and that no party would be disadvantaged by such a course of action.

  4. Section 05

    Main Issue

    The main issue is whether the erection of a lower ground floor rear extension including new rear garden levels preserves or enhances the character or appearance of the Clapham Conservation Area.

  5. Section 06

    Reasons for the Recommendation

    The Clapham Conservation Area (CCA) derives its significance from the traditional, relatively consistent appearance of the residential development in the area. The appeal site sits within a terrace that contributes to the significance of the CCA through its appearance, including consistency on the front elevation and the rhythm created by the closet wings to the rear. There are rear additions to multiple properties on this terrace, including extensions that wrap around the closet wing on properties neighbouring the appeal site at 29 and [address].

    The proposal looks to create a wrap-around extension at lower ground floor level. Whilst guidance in the Building Alterations & Extensions Supplementary Planning Document (adopted 2015) (SPD) suggests that wrap-around extensions may not be appropriate on properties in conservation areas, this is to maintain the appearance of features such as closet wings. The extension would be large, however the sunken positioning means it would not appear dominant over the existing closet wing. The closet wing would remain the prominent feature to the rear of the dwelling. The proposal would therefore maintain the appearance of the rear elevation of the terrace and would not interrupt the rhythm of the properties.

    The SPD also outlines how subordination is key when considering extensions. The sunken positioning of the proposal and the proposed materials help to create an appropriate level of subordination and ensure the original architecture of the property would be maintained.

    The proposed addition would not extend to the rear any further than the neighbouring extensions at Nos.29 and 30. Regardless of whether the extensions at Nos.29 and 30 are considered anomalous, they do form part of the appearance of this terrace. As these are the next two properties on from the appeal site, the introduction of this extension would not lead to significant disruption of the rhythm seen on this terrace. This, combined with the sunken nature of the proposal, ensures it would appear sympathetic in both scale and appearance to the terrace as a whole.

    Overall, the proposed erection of a lower ground floor rear extension including new rear garden levels would preserve the character and appearance of the CCA. It would therefore conform with Policies Q5, Q11 and Q22 of the Lambeth Local Plan 2020-2035 (adopted 2021), which together seek to protect local distinctiveness, ensure extensions respond positively to original architecture and are subordinate, with particular regard to ensuring the character and appearance of conservation areas are preserved.

  6. Section 07

    Other Matters

    The removal of fruit trees for the construction of the proposal has been considered acceptable by the Council. As the trees are relatively small and a substantial amount of vegetation and greenery would remain, I agree with the Council’s assessment.

  7. Section 08

    Conditions

    The standard time condition has been included for reasons of certainty. For the same reason, I have recommended conditions regarding plans and materials, as well as to ensure an appropriate level of design that protects the character and appearance of the dwelling and surrounding area.

    The Council’s officer report suggests a condition regarding landscaping. The plans provided with the application outline the trees that would be retained and the inclusion of planters. [name] have recommended a condition that would ensure the proposal complies with these submitted plans, I do not consider an additional landscaping condition would be necessary.

  8. Section 09

    Conclusion and Recommendation

    For the reasons given above and having had regard for the Development Plan when it is considered as a whole, I recommend that in relation to the reconfiguration of the front garden, the appeal is dismissed. However, I recommend that in relation to the erection of a lower ground rear extension including new rear garden levels, the appeal is allowed.

  9. Section 10

    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 insofar as it relates to the reconfiguration of the front garden and the appeal is allowed insofar as it relates to the erection of a lower ground rear extension including new rear garden levels.

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 1463No official casework-database value to compare
    Extracted decision date · page 1
    24 March 2022Matches the official casework database
    Extracted site visit dates
    1 March 2022 (page 1)

Reference and authority

Official identifiers and the planning authority recorded against this case.

Case reference
3284092
Application reference
21/01268/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
19 m²
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
Yes
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
Split Decision
Decision category
Split decision
Received date
1 October 2021
Valid date
1 October 2021
Start date
9 December 2021
Planning authority decision date
22 July 2021
Appeal decision date
24 March 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
No
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
12877
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