29 Courtenay Street London SE11 5PH Data via plota.co.uk

26/01669/FUL - Full Planning Permission Awaiting decision
Extensions & alterations

Proposal

Erection of a rear dormer extension. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
8 Jun 2026
✓
Validated
30 Jul 2026
Decision
Expected by 19 Oct 2026

Under consideration

No decision has been issued yet. Plota predicted a decision soon after comments close on 16 Oct 2026; it is now day 71.

Comments are open until 16 Oct 2026

Comment on this application ↗

Documents 10

Plans & drawings 6

PDF EXISTING AND PROPOSED REAR Plans · 31 Jul 2026 View ↗ PDF EXISTING GROUND FLOOR AND FIRST FLOOR PLANS Plans · 31 Jul 2026 View ↗ PDF PROPOSED SECTION AA Plans · 31 Jul 2026 View ↗ PDF PROPOSED SECOND FLOOR AND ROOF PLANS Plans · 31 Jul 2026 View ↗ PDF EXISTING ROOF PLANS Plans · 31 Jul 2026 View ↗ PDF EXISTING AND PROPOSED SIDE ELEVATIONS Plans · 31 Jul 2026 View ↗

Application forms 2

PDF AMENDMENT : COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM Supporting Docs · 15 Jul 2026 View ↗ PDF AMENDMENT : APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 15 Jul 2026 View ↗

Other documents 2

PDF OS MAP OS Map · 15 Jul 2026 View ↗ PDF AMENDMENT : PHOTOGRAPHS AND PHOTOMONTAGES Photo · 15 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 ↗
Kennington 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.
Air quality management area: Lambeth 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 168 m away: Thames Tideway Tunnel
The site is 168 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, 606 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 ↗
19 listed buildings within 150 m
Nearest: 1-32, Cardigan Street Se11, Grade II, 7 m away · 1 Grade II*, 16 Grade II
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show all 19 with distances
Historic England ↗
Also on the record
Wider setting of protected view 4A.2 Primrose Hill summit to the Palace of Westminster; Inside the Lambeth built-up area; Public transport access: PTAL 6a (excellent), TfL 2023, for the 100 m square.
Not affected
Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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.

Sales history 2

Last sold for £970,000 in October 2024. Terraced house, freehold.

1 October 2024£970,000
29 August 2006£475,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area108 m² (1,163 sq ft)
Energy ratingD (59 out of 100), could reach C
PropertyEnd-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 June 2024, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Lambeth
Application type
Full Planning Permission
Postcode
SE11 5PH
Received
8 Jun 2026
Validated
30 Jul 2026
Ward
Kennington
Case officer
Show
Target decision
19 Oct 2026
Applicant
Show

Decision outlook

Day 71, past the statutory target. 90% of extensions in Lambeth are decided within thirteen weeks, which runs to 29 Oct 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 7 Oct 2026.

Day 718 days to the predicted decision (day 79)
59%decided within 8 weeks
82%approved
833decided in the last year

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

Public comments

No public comments yet.

17 neighbours consulted · Last counted 7 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Comments by
16 Oct 2026
Statutory expiry
24 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 Approved
18 Cardigan Street London SE11 5PE
Replacement of existing single-glazed timber windows throughout with new slimline heritag…
25/03577/LB
2025 Approved
18 Cardigan Street London SE11 5PE
Replacement of existing single-glazed timber windows throughout with new slimline heritag…
25/03576/FUL
2025 Approved
25 Cardigan Street London SE11 5PE
Replacement of the existing single-glazed timber windows throughout with new slimline her…
25/02424/LB
2025 Approved
25 Cardigan Street London SE11 5PE
Replacement of the existing single-glazed timber windows throughout with new slimline her…
25/02423/FUL
2025 Approved
21 Cardigan Street London SE11 5PE
Replacement of double glazed windows to ground floor flat and rear door. (Please note: Th…
25/03800/FUL
2025 Approved
21 Cardigan Street London SE11 5PE
Replacement of double glazed windows to ground floor flat and rear door.
25/03801/LB
2025 Approved
26 Cardigan Street London SE11 5PE
Replacement of the existing single-glazed timber windows throughout with new slimline her…
25/02426/LB
2025 Approved
26 Cardigan Street London SE11 5PE
Replacement of the existing single-glazed timber windows throughout with new slimline her…
25/02425/FUL
2025 Approved
43 Courtenay Street London SE11 5PH
Replacement of all existing windows with double glazed timber/casement windows.
25/00622/FUL
2025 Approved
41 Courtenay Street London SE11 5PH
Replace existing single-glazed timber windows and replace them with slimline heritage tim…
25/00733/FUL
2025 Approved
39 Courtenay Street London SE11 5PH
Replacement of all existing single-glazed timber windows with slimline heritage timber sa…
25/00556/FUL
2025 Approved
37 Courtenay Street London SE11 5PH
Replacement of all existing windows with double glazed timber/casement windows.
25/00625/FUL
2025 Approved
22 Cardigan Street London SE11 5PE
Replace the existing single-glazed timber windows throughout with new slimline heritage t…
25/01936/LB
2025 Approved
22 Cardigan Street London SE11 5PE
Replace the existing single-glazed timber windows throughout with new slimline heritage t…
25/01935/FUL
2025 Approved
22 Courtenay Street London SE11 5PQ
Replacement of all existing windows with double glazed timber/casement windows.
25/00614/FUL
2025 Approved
6 Cardigan Street London SE11 5PE
Replacement of existing asphalt roof. (Please note: The reference number for this Listed…
25/02911/LB
2025 Approved
6 Cardigan Street London SE11 5PE
Replacement of existing asphalt roof. (Please note: The reference number for this applica…
25/02910/FUL
2025 Approved
24 Cardigan Street London SE11 5PE
Replacement of single-glazed timber windows with slimline heritage timber windows to matc…
25/02422/LB
2025 Approved
24 Cardigan Street London SE11 5PE
Replacement of single-glazed timber windows with slimline heritage timber windows to matc…
25/02421/FUL
2025 Approved
23 Cardigan Street London SE11 5PE
Replacement of all single-glazed timber windows with slimline heritage timber windows to…
25/02419/FUL
2016 Approved
74 Courtenay Street London SE11 5PQ
Removal of section of dividing wall between front and rear living rooms at ground floor l…
16/06980/LB
2016 Refused
15 Courtenay Street London SE11 5PH
Erection of single storey ground floor rear/ side infill extension and alterations to the…
16/05967/FUL
2016 Approved
50 Aveline Street London SE11 5DQ
Infill extension at first floor level involving installation of window within a new reces…
16/04417/FUL
2016 Approved
12 Courtenay Square London SE11 5PG
To remove 1 x Leylandii conifer tree to rear of property.
16/05104/TCA
2016 Approved
48 Cardigan Street London Lambeth SE11 5PF
To remove 1 x Cherry tree to rear of property.
16/00444/TCA
Lambeth
Planning Authority Score
2.7/10
Poor
#242 of 296 councils
Relevant to this application:
Householder decisions

Lambeth ranks #164 out of 296 councils for householder decision speed. 47% of applications have the time limit extended, above the 41% national average. Lambeth is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.

One of the strictest councils
only 81% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Lambeth decision statistics
Based on MHCLG data, the year to March 2026
78%
Overall approval rate
Below avg (87%) #274 of 296
81%
Householder approved
Below avg (90%) #273 of 296
62%
Decided in 8 weeks
Below avg (63%) #164 of 296
47%
Extended time limit
Above avg (41%) #209 of 296
46%
Minor dwellings approved
70 decided (1-9 homes)
100%
Major dwellings approved
9 decided (10+ homes)
42%
Change of use approved
53 decided
1,784
Total decisions
396 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.