36 Lancaster Avenue London Lambeth SE27 9DZ Data via plota.co.uk

25/03320/FUL - Full Planning Permission Refused

Proposal

Erection of a rear dormer extension including 3 rooflights to the front, removal of existing chimney stack, replacement of front façade bay window and re-roofing and canopy covering in traditional slate. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
22 Oct 2025
✗
Refused
17 Dec 2025
Appeal
Not lodged

Refused on 17 Dec 2025 · Delegated Decision · Last checked 10 Oct 2026

Documents 34

Decision & officer reports 2

PDF OFFICER REPORT Delegated Register · 17 Dec 2025 View ↗ PDF Decision Notice Decision Notice · 17 Dec 2025 View ↗

Statements & assessments 1

PDF DESIGN, ACCESS AND HERITAGE STATEMENT Design & Access Statement · 23 Oct 2025 View ↗

Plans & drawings 28

PDF EXISTING SECOND FLOOR MEZZANINE PLAN Plans · 23 Oct 2025 View ↗ PDF EXISTING ROOF PLAN Plans · 23 Oct 2025 View ↗ PDF EXISTING SECTION AA Plans · 23 Oct 2025 View ↗ PDF EXISTING REAR ELEVATIONS Plans · 23 Oct 2025 View ↗ PDF PROPOSED SECOND FLOOR PLAN Plans · 23 Oct 2025 View ↗ PDF PROPOSED SITE PLAN Plans · 23 Oct 2025 View ↗ PDF EXISTING LOFT PLAN Plans · 23 Oct 2025 View ↗ PDF PROPOSED WINDOW SECTION PLANS Plans · 23 Oct 2025 View ↗ PDF EXISTING GROUND FLOOR PLAN Plans · 23 Oct 2025 View ↗ PDF EXISTING FIRST FLOOR MEZZANINE PLAN Plans · 23 Oct 2025 View ↗ PDF PROPOSED FIRST FLOOR MEZZANINE PLAN Plans · 23 Oct 2025 View ↗ PDF PROPOSED SECTION AA Plans · 23 Oct 2025 View ↗ PDF EXISTING SITE PLAN Plans · 23 Oct 2025 View ↗ PDF EXISTING BASEMENT PLAN Plans · 23 Oct 2025 View ↗ PDF PROPOSED FIRST FLOOR PLAN Plans · 23 Oct 2025 View ↗ PDF PROPOSED SECOND FLOOR MEZZANINE PLAN Plans · 23 Oct 2025 View ↗ PDF EXISTING FIRST FLOOR PLAN Plans · 23 Oct 2025 View ↗ PDF EXISTING SECTION AA Plans · 23 Oct 2025 View ↗ PDF PROPOSED BASEMENT PLAN Plans · 23 Oct 2025 View ↗ PDF PROPOSED REAR ELEVATION Plans · 23 Oct 2025 View ↗ PDF EXISTING FRONT ELEVATION Plans · 23 Oct 2025 View ↗ PDF EXISTING SIDE ELEVATION Plans · 23 Oct 2025 View ↗ PDF PROPOSED FRONT ELEVATION Plans · 23 Oct 2025 View ↗ PDF PROPOSED ROOF PLAN Plans · 23 Oct 2025 View ↗ PDF PROPOSED WINDOW SECTION PLANS Plans · 23 Oct 2025 View ↗ PDF PROPOSED GROUND FLOOR PLANS Plans · 23 Oct 2025 View ↗ PDF PROPOSED SECTION BB Plans · 23 Oct 2025 View ↗ PDF PROPOSED SIDE ELEVATION Plans · 23 Oct 2025 View ↗

Application forms 2

PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 23 Oct 2025 View ↗ PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM Supporting Docs · 23 Oct 2025 View ↗

Other documents 1

PDF OS MAP OS Map · 23 Oct 2025 View ↗

All documents on the council site ↗

Site constraints 4

Lancaster Avenue 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 ↗
Also on the record
Inside the Lambeth built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 2 November 2026. Historic England, the Environment Agency, Natural England, 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 1

Last sold for £1,850,000 in December 2024. Semi-detached house, freehold.

5 December 2024£1,850,000

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

Building

Floor area208 m² (2,239 sq ft)
Energy ratingE (53 out of 100), could reach C
PropertySemi-detached house, 8 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2019, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

10 Sept 2026Approved

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30 Sept 2026Pending

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Formation of a vehicular crossover and dropped kerb with associated works.

26/02742/FUL
19 Oct 2026Pending

23 Lansdowne Hill London SE27 0LP

Application for a Lawful Development Certificate (Existing), for a building's ex...

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15 Oct 2026Approved

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13 Oct 2026Pending

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Important details

Council
Lambeth
Application type
Full Planning Permission
Postcode
SE27 9DZ
Received
22 Oct 2025
Validated
22 Oct 2025
Ward
West Dulwich
Case officer
Show
Target decision
17 Dec 2025
Decision
Refuse Permission
Decision date
17 Dec 2025
Decision level
Delegated Decision
Applicant
Show
Agent
Delve Architects

How this decision compares

Decided in 56 days from validation, about the council's usual 56 days. Refused, as 21% of full applications here are.

50%decided within 8 weeks
79%approved
1,267decided in the last year

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

Public comments

No public comments yet.

4 neighbours consulted · Last counted 10 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Comments by
28 Nov 2025
Statutory expiry
17 Dec 2025
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2022 Approved
To lift canopy and crown thin 1 x Horse Chestnut tree to front of property. To lift canop…
22/01998/TPO
2022
To lift canopy and crown thin 1 x Horse Chestnut tree to front of property. To lift canop…
22/01998/TCA
Within ~100m

Nearby activity

2025 Approved
19 Lancaster Avenue London SE27 9EL
Rear garden: T1 Cherry. Fell to ground level. T2 Pear. Crown reduce height by 2 m to 6 m…
25/03284/TCA
2025 Approved
10A Lancaster Avenue London SE27 9DZ
Erection of an entrance porch and bay window to the side elevation and replacement of the…
25/00248/FUL
2024 Approved
39 Chatsworth Way London SE27 9HN
Application of Lawful Certificate of Devleopment (proposed) for the erection of a single…
24/03571/LDCP
2024 Approved
10A Lancaster Avenue London SE27 9DZ
Back Garden: T1 Willow CROWN REDUCTION of height, from the Current height of 8 meters to…
24/02822/TCA
2024 Approved
28 Lancaster Avenue London Lambeth SE27 9DZ
Front Garden: Plum Trees Current Height and Crown Spread: 6 meters Height and Crown Sprea…
24/02997/TCA
2024 Withdrawn
21 Lancaster Avenue London SE27 9EL
Erection of a 2 storey side extension, reconfiguration of the front boundary wall and alt…
24/02051/FUL
2024 Refused
39 Chatsworth Way London SE27 9HN
Erection of a single storey ground floor rear extension.
24/02147/FUL
2023 Refused
21 Lancaster Avenue London SE27 9EL
Erection of a lower ground floor rear extension with roof terrace; a two storey side exte…
23/03785/FUL
2023 Approved
14B Lancaster Avenue London SE27 9DZ
Erection a side dormer roof extension.
23/03690/FUL
2023 Approved
28 Lancaster Avenue London Lambeth SE27 9DZ
T1: x1 large Plum tree, located in the front garden. Suggested work - reduce spread by 2…
23/02510/TCA
2022 Withdrawn
10A Lancaster Avenue London SE27 9DZ
1 x Sycamore tree at rear - remove.
22/04285/TCA
2022 Approved
4E Lancaster Avenue London Lambeth SE27 9DZ
Replacement of existing window to rear elevation with a bi-fold door, and replacement of…
22/02991/FUL
2022 Approved
16 Lancaster Avenue London SE27 9DZ
Rear garden: 2 x Bay trees - cut back to previous points, thin and remove deadwood. 2 x Y…
22/03186/TCA
2022 Approved
12B Lancaster Avenue London Lambeth SE27 9DZ
To remove 1 x Ginkgo tree to rear of property.
22/02953/TCA
2022 Refused
14B Lancaster Avenue London Lambeth SE27 9DZ
Erection of side dormer roof extension with dormer window with a fixed window.
22/02005/FUL
2022 Approved
12B Lancaster Avenue London Lambeth SE27 9DZ
To crown reduce 1 x Ginkgo tree to rear of property by up to 2 metres.
22/02122/TCA
2022 Approved
14 Lancaster Avenue London Lambeth SE27 9DZ
Erection of a single storey ground floor rear extension.
22/00502/FUL
2022 Approved
12A Lancaster Avenue London LONDON SE27 9DZ
Erection of a rear dormer roof extension and installation of 2 conservation style roof li…
22/00165/FUL
2016 Approved
18 Lancaster Avenue London SE27 9DZ
To remove 1 x Apple tree to rear of property (in decline), crown thin 1 x Pear tree by 20…
16/05181/TCA
2021 Approved
15 Lancaster Avenue London SE27 9EL
1 x Eucalyptus tree to rear of property - reduce crown by 35%, thin by 15% to include cut…
21/01244/TCA
2016 Approved
24 Lancaster Avenue London SE27 9DZ
Creation of front and rear lightwells, reconfiguration of basement, together with alterat…
16/06626/FUL
2016 Withdrawn
23 Lancaster Avenue London SE27 9EW
Change of use to six self contained flats (Class C3) alterations to entrance and enlargem…
16/05635/FUL
2016 Withdrawn
1 Hawkley Gardens London SE27 9EA
Replacement of garage door with a window and installation of a new door to the side eleva…
16/05116/FUL
2016 Approved
10B Lancaster Avenue London SE27 9DZ
Erection of a single storey first floor extension over existing ground floor side extensi…
16/05001/FUL
2016 Approved
5 Lancaster Avenue London SE27 9EL
Removal and reinstatement of front boundary wall for the widening of two existing drive w…
16/03696/FUL
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.