7 Alma Grove London Southwark SE1 5PY Data via plota.co.uk

26/AP/2158 - Householder Application Approved
Extensions & alterations

Proposal

Erection of a rear ground floor side extension with a framed glass roof and bi-folding rear doors. Replacement of windows and door. Alterations to external facade. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
21 Jul 2026
✓
Validated
22 Jul 2026
✓
Approved
4 Sept 2026

Approved on 4 Sept 2026 · Delegated Panel - Simple · Last checked 5 Sept 2026

Documents 19

Decision & officer reports 4

PDF 346_P .004A PROPOSED SECTION A-A / SIDE ELEVATION Decision - Plans · 3 Sept 2026 View ↗ PDF 346_P .005A PROPOSED FRONT & REAR ELEVATIONS Decision - Plans · 3 Sept 2026 View ↗ PDF 346_P .006A PROPOSED CROSS SECTION & 45 DEGREE RULE Decision - Plans · 3 Sept 2026 View ↗ PDF 346_P .007 PROPOSED EXTENSION SIDE ELEVATION Decision - Plans · 3 Sept 2026 View ↗

Statements & assessments 3

PDF PARKING STATEMENT Parking Provision · 21 Jul 2026 View ↗ PDF FIRE STATEMENT Fire Statement · 21 Jul 2026 View ↗ PDF DESIGN AND ACCESS STATEMENT Design and Access statement · 21 Jul 2026 View ↗

Plans & drawings 6

PDF 346_P.004 PROPOSED SECTION A-A / SIDE ELEVATION Plan - Proposed · 22 Jul 2026 View ↗ PDF 346_P.005 PROPOSED FRONT & REAR ELEVATIONS Plan - Proposed · 22 Jul 2026 View ↗ PDF 346_P.002 PROPOSED FIRST FLOOR PLAN Plan - Proposed · 22 Jul 2026 View ↗ PDF 346_P.003 PROPOSED ROOF PLAN Plan - Proposed · 22 Jul 2026 View ↗ PDF 346_P.001 PROPOSED GROUND FLOOR PLAN Plan - Proposed · 22 Jul 2026 View ↗ PDF 346_P.006 PROPOSED CROSS SECTION & 45 DEGREE RULE Plan - Proposed · 22 Jul 2026 View ↗

Application forms 1

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application - Form (Without Personal data) · 21 Jul 2026 View ↗

Consultation & comments 1

PDF FILE COPY - NEIGHBOUR NOTIFICATION+LIST Neighbour Notification List · 23 Jul 2026 View ↗

Other documents 4

PDF SITE NOTICE Site notice · 29 Jul 2026 View ↗ PDF SITE NOTICE Site notice · 29 Jul 2026 View ↗ PDF PRESS NOTICE - 30/07/2026 Press Notice · 28 Jul 2026 View ↗ PDF VALID APPLICATION LETTER WITH INVOICE Valid Application Letter · 23 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 8

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Thorburn Square conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Archaeological priority area: North Southwark and Roman Roads
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
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 ↗
National infrastructure project 480 m away: Thames Tideway Tunnel
The site is 480 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, 421 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Also on the record
Radon affected area, class 2; Inside the Southwark built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square.
Not affected
Not green belt · No listed building at the site · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI), Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.

Building

Floor area105 m² (1,130 sq ft)
Energy ratingD (67 out of 100), could reach B
PropertyMid-terrace house, 5 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in September 2025, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Southwark
Application type
Householder Application
Postcode
SE1 5PY
Received
21 Jul 2026
Validated
22 Jul 2026
Ward
South Bermondsey
Parish
Bermondsey And Rotherhithe
Case officer
Show
Target decision
15 Sept 2026
Decision
Householder - GRANTED
Decision date
4 Sept 2026
Decision level
Delegated Panel - Simple
Applicant
Show
Agent
Michael Trentham Architects

How this decision compares

Decided in 44 days from validation, 7 days faster than Southwark's median of 51 for extensions. Approved, as 93% of extensions here are.

75%decided within 8 weeks
93%approved
647decided in the last year

Plota live figures for extensions decided by Southwark in the last twelve months, from validation. Southwark decision record →

Public comments

No public comments yet.

2 neighbours consulted · Last counted 5 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
15 Sept 2026
Env. assessment
No

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025
21 Reverdy Road London Southwark SE1 5QE
Construction of wrap around extension, with 2no. rooflights, and a projecting roof over t…
25/AP/1922
2025
35A Reverdy Road London Southwark SE1 5QE
Proposed ground floor rear extension.
25/AP/1874
2025 Approved
40 Reverdy Road London Southwark SE1 5QE
Works to trees in a Conservation Area: - T1 (Pittosporum): Fell - T2 (Gingko): Fell
25/AP/1561
2025
74 Southwark Park Road London Southwark SE16 3RS
Works to trees in a Conservation Area: - T1 (Eucalyptus): Crown reduction by 3m from 10m…
25/AP/1040
2025
39 Reverdy Road London Southwark SE1 5QE
Construction of single storey side-infill extension and replacement of existing ground fl…
25/AP/0391
2024 Approved
26 Alma Grove London Southwark SE1 5PY
Works to a tree in a conservation area: T1 birch: Crown reduction removing up to 2m from…
24/AP/3647
2024 Approved
23 Balaclava Road London Southwark SE1 5PX
Construction of a single storey side extension to the ground floor level of the existing…
24/AP/0271
2023 Approved
62 Southwark Park Road London Southwark SE16 3RS
Part double storey part single storey rear extension with internal alterations and change…
23/AP/3043
2023 Approved
18 Reverdy Road London Southwark SE1 5QE
Construction of side rear infill extension and reinstatement of rear sash windows.
23/AP/2550
2023 Approved
56 Southwark Park Road London Southwark SE16 3RS
Works to a Tree in a Conservation Area: Cherry laurel: crown reduce by 35% - routine main…
23/AP/1534
2023 Approved
3 Alma Grove London Southwark SE1 5PY
Works to trees in a conservation area: Trees are in No 5 Alma Grove. T1 + T2 = To Reduce…
23/AP/0898
2023 Approved
56 Southwark Park Road London Southwark SE16 3RS
Works to a tree in a conservation area: pruning of cherry laurel tree
23/AP/0534
2022 Approved
26 Reverdy Road London Southwark SE1 5QE
T1 Multi stemmed Bay Rear LHB. Crown reduction - To reduce the overall height by up to 1…
22/AP/3536
2022 Approved
28 Reverdy Road London Southwark SE1 5QE
Replacement of windows to front elevation with timber sash design.
22/AP/0657
2022 Approved
74 Southwark Park Road London Southwark SE16 3RS
Rear: one eucalyptus tree (T1)(ht.10m) crown reduction by 3m from 10m to 7m back to appro…
22/AP/1120
2021 Approved
40 Reverdy Road London Southwark SE1 5QE
Erection of a single storey side extension with 3 rooflights, removal of window on first…
21/AP/4663
2021 Approved
4 Alma Grove London Southwark SE1 5PY
Replacement of all of existing windows with double glazed timber sash windows.
21/AP/2663
2021 Approved
33 Alma Grove London Southwark SE1 5PY
Construction of a ground floor side and rear extension; and a first floor rear extension.
21/AP/3324
2021 Approved
32 Reverdy Road London Southwark SE1 5QE
Construction of a single storey side rear extension.
21/AP/2282
2021 Approved
80 Southwark Park Road London Southwark SE16 3RS
Construction of a single storey side return extension, a single storey rear extension and…
21/AP/0867
2016 Approved
38 Reverdy Road London SE1 5QE
Erection of rear ground floor single storey extension (to infill side of outrigger), to p…
16/AP/3783
2016 Approved
78 Southwark Park Road London SE16 3RS
Remove group of Conifers (T1-T11) at the rear of the property.
16/AP/3674
2016 Approved
4 Reverdy Road London SE1 5QE
Construction of rear ground and first floor extension
16/AP/3428
2016 Approved
28 Reverdy Road London SE1 5QE
Erection of a rear single storey side extension providing additional residential accommod…
16/AP/1664
2016 Approved
25 Balaclava Road London SE1 5PX
Erection of rear ground floor single storey side extension to side of outrigger; and a re…
16/AP/1179
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

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.