34 Alleyn Road London Southwark SE21 8AL Data via plota.co.uk

26/AP/0515 - Variation Decided
Admin / procedural

Proposal

Non-material amendment to planning permission ref no. 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on reduced footprint, enlargement to existing basement with associated lightwells to front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to house), installation of an air source heat pump unit to lower ground floor with associated plant equipment, replacement front garden paving, and adjustment to front garden boundary to improve vehicle access'. NMA sought to amend the description of development to: 'Ground floor rear extension, replacement ground floor side extension, replacement rear addition on a reduced footprint, enlargement of the existing basement with associated lightwells to the front and rear, alterations to rear elevation fenestration at ground, first and second floor levels, introduction of low-profile rooflights, replacement of existing roof coverings and windows, brick cleaning and repointing, replacement rear garden boundary treatments (local to the house), installation of 2No. of air source heat pump units and 2No. of AC units at lower ground floor level with associated plant equipment, replacement front garden paving, and adjustment to the front garden boundary to improve vehicle access'… Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
20 Feb 2026
✓
Agreed - for App Types VLA and VNMC
16 Mar 2026

Agreed - for App Types VLA and VNMC on 16 Mar 2026 · Delegated Panel - Simple · Last checked 29 Aug 2026

Documents 7

Statements & assessments 2

PDF NOISE IMPACT ASSESSMENT Noise impact assessment · 20 Feb 2026 View ↗ PDF PLANNING STATEMENT Planning statement · 20 Feb 2026 View ↗

Plans & drawings 3

PDF 393 400 REV P4 PROPOSED LOWER GROUND FLOOR PLAN Plan - Proposed · 20 Feb 2026 View ↗ PDF 393 401 REV P4 PROPOSED GROUND FLOOR PLAN Plan - Proposed · 20 Feb 2026 View ↗ PDF 393 402 REV P3 PROPOSED FIRST & SECOND FLOOR PLANS Plan - Proposed · 20 Feb 2026 View ↗

Application forms 1

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application - Form (Without Personal data) · 20 Feb 2026 View ↗

Other documents 1

PDF VALID APPLICATION LETTER WITH INVOICE Valid Application Letter · 20 Feb 2026 View ↗

All documents on the council site ↗

Associated applications 4

Site constraints 2

Air quality management area: Southwark AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Also on the record
Inside the Southwark built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Other new applications on this street

8 May 2026Approved

12C Alleyn Road London Southwark SE21 8AL

Construction of a rear extension, loft conversion, and the installation of a new...

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19 Jun 2026Approved

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27 May 2026Decided

78 Alleyn Road London Southwark SE21 8AH

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Nearby new applications

18 Aug 2026Pending

61 Alleyn Park London Southwark SE21 8AT

Construction of a single storey ground floor rear extension.

26/AP/2469
5 Aug 2026Pending

23 Alleyn Park London Southwark SE21 8AU

Demolition of existing property with a replacement detached dwelling.

26/AP/2338
5 Aug 2026Pending

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Works to a tree with a TPO: Tree ID 8189 A Box Elder tree approximately 8m in he...

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3 Aug 2026Approved

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31 Jul 2026Pending

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28 Jul 2026Pending

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Important details

Council
Southwark
Application type
Variation
Postcode
SE21 8AL
Received
20 Feb 2026
Validated
20 Feb 2026
Ward
Dulwich Wood
Parish
Dulwich
Case officer
Show
Target decision
19 Mar 2026
Decision
Agreed - for App Types VLA and VNMC
Decision date
16 Mar 2026
Decision level
Delegated Panel - Simple
Applicant
Show
Agent
Lucy Wood Architects

Public comments

No public comments yet.

Last counted 29 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Env. assessment
No

Historical activity at this location

19 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025
Demolition of the building with retention of the front façade to facilitate the developme…
25/AP/2288
2024 Approved
Ground floor rear extension, replacement ground floor side extension, replacement rear ad…
24/AP/3809
Within ~100m

Nearby activity

2025 Approved
32 South Croxted Road London Southwark SE21 8BB
Constrution of a ground floor side extension
25/AP/1358
2025 Approved
42 South Croxted Road London Southwark SE21 8BD
Construction of a single storey infill extension to rear side return
25/AP/1181
2024 Approved
11 Alleyn Road London Southwark SE21 8AB
Tree works (TPO): A Crab Apple tree approximately 8m in height, situated in the front gar…
24/AP/2282
2022 Approved
23 Alleyn Road London Southwark SE21 8AB
T1. Mature veteran Oak tree - some removal of dead wood plus a small amount of crown lift…
22/AP/4042
2022 Approved
52 South Croxted Road London Southwark SE21 8BD
Certificate of Lawful Development (proposed) replacement of rear dormer and insertion of…
22/AP/1683
2022 Approved
27 Alleyn Road London Southwark SE21 8AB
Remove four low growing branches to a 10m High Oak tree . Remove dead wood and thin by 25…
22/AP/0265
2021 Approved
13 Alleyn Road London Southwark SE21 8AB
Tree removal notice (5 day) (TPO Order) for dead Horse Chestnut tree.
21/AP/3641
2021 Approved
40 South Croxted Road London Southwark SE21 8BD
Construction of a rear dormer extension together with new windows in the existing west an…
21/AP/2189
2021 Approved
19 Alleyn Road London Southwark SE21 8AB
Purple Maple (T1) - Crown to be lightly thinned by up to 15% and one lowest branch to be…
21/AP/1855
2021 Approved
28 Alleyn Road London Southwark SE21 8AL
Replacement of single window on front elevation with two windows
21/AP/1725
2021 Approved
42 South Croxted Road London Southwark SE21 8BD
Construction of a single storey infill extension to rear, rear dormer extension and refur…
21/AP/1566
2020 Approved
11 Alleyn Road London Southwark SE21 8AB
T1 Crab Apple - Fell to ground level T2 Crab Apple - Fell to ground level T3 Damson - Fel…
20/AP/3851
2020 Approved
11 Alleyn Road London Southwark SE21 8AB
T1 Willow Tree - Fallen. Remove
20/AP/2969
2020 Approved
Ground Floor Flat 56 South Croxted Road London Southwark SE21 8BD
Construction of a single storey L-shaped rear extension with partially pitched and partia…
20/AP/2232
2020 Refused
11 Alleyn Road London Southwark SE21 8AB
Crab Apple (T1 on site plan) - Fell The tree works are proposed to stop the influence of…
20/AP/2009
2016 Approved
30 Alleyn Road London SE21 8AL
Erection of a single storey rear extension after demolition of existing glazed conservato…
16/AP/5166
2016 Approved
54 South Croxted Road London SE21 8BD
Erection of rear single storey extension, which extends off the rear wall by 5.947m; with…
16/AP/1386
Southwark
Planning Authority Score
7/10
Good
#64 of 296 councils
Relevant to this application:
Householder decisions

Southwark is faster than most councils at deciding householder applications, ranking #54 out of 296. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Southwark decision statistics
Based on MHCLG data, the year to March 2026
92%
Overall approval rate
Above avg (87%) #93 of 296
95%
Householder approved
Above avg (90%) #92 of 296
78%
Decided in 8 weeks
Above avg (63%) #54 of 296
37%
Extended time limit
Below avg (41%) #122 of 296
92%
Minor dwellings approved
259 decided (1-9 homes)
86%
Major dwellings approved
14 decided (10+ homes)
82%
Change of use approved
38 decided
1,622
Total decisions
132 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings