17 Copley Park London Lambeth SW16 3DD Data via plota.co.uk

26/02097/FUL - Full Planning Permission Awaiting decision
Extensions & alterations

Proposal

Replacement of existing single-glazed timber sash windows with like-for-like double glazed sash windows and one casement window. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
20 Jul 2026
✓
Validated
7 Oct 2026
Decision
Expected by 2 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 2 Dec 2026, from Lambeth's recent extensions.

Documents 15

Statements & assessments 1

PDF DESIGN AND HERITAGE STATEMENT Supporting Docs · 20 Jul 2026 View ↗

Plans & drawings 4

PDF PROPOSED FRONT AND REAR ELEVATIONS Plans · 7 Oct 2026 View ↗ PDF EXISTING FRONT AND REAR ELEVATIONS Plans · 5 Oct 2026 View ↗ PDF HIDDEN TRICKLE VENTS Plans · 20 Jul 2026 View ↗ PDF EXISTING AND PROPOSED WINDOW ELEVATIONS AND SECTION PLANS Plans · 20 Jul 2026 View ↗

Application forms 2

PDF COMMUNITY INFRASTRUCTURE LEVY - COMPLETED FORM Supporting Docs · 20 Jul 2026 View ↗ PDF APPLICATION FORM - WITHOUT PERSONAL DATA Application Form · 20 Jul 2026 View ↗

Other documents 8

IMG PHOTOGRAPHS AND PHOTOMONTAGES Photo · 20 Jul 2026 View ↗ IMG PHOTOGRAPHS AND PHOTOMONTAGES Photo · 20 Jul 2026 View ↗ IMG PHOTOGRAPHS AND PHOTOMONTAGES Photo · 20 Jul 2026 View ↗ IMG PHOTOGRAPHS AND PHOTOMONTAGES Photo · 20 Jul 2026 View ↗ PDF OS MAP OS Map · 20 Jul 2026 View ↗ IMG PHOTOGRAPHS AND PHOTOMONTAGES Photo · 20 Jul 2026 View ↗ IMG PHOTOGRAPHS AND PHOTOMONTAGES Photo · 20 Jul 2026 View ↗ IMG PHOTOGRAPHS AND PHOTOMONTAGES Photo · 20 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 7

Streatham Lodge 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.
Article 4 direction
Streatham Lodge Estate. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
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 ↗
Local nature reserve 154 m away: Streatham Common
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Also on the record
Registered park or garden 202 m away: The Rookery; Inside the Lambeth built-up area; Public transport access: PTAL 2 (poor), 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 8 October 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.

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Important details

Council
Lambeth
Application type
Full Planning Permission
Postcode
SW16 3DD
Received
20 Jul 2026
Validated
7 Oct 2026
Ward
Streatham Common & Vale
Case officer
Show
Target decision
2 Dec 2026
Applicant
Show

Decision outlook

Day 2 of the 56-day target. Lambeth usually decides extensions by day 56.

Day 254 days to the 56-day target
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.

Last counted 8 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
2 Dec 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
42 Copley Park London SW16 3DD
Erection of a rear dormer window including the installation of a roof light to front roof…
25/03566/FUL
2025 Approved
12 Copley Park London SW16 3DE
See Accompanying Plan for the Location of the Trees: T1 Ash: Assumed existing dimensions…
25/03719/TCA
2025 Approved
17 Copley Park London SW16 3DD
Back Garden: T1 Willow - Reduce height from 8m to 6m, radius from 4m to 2m. T2 Lime - Red…
25/01860/TCA
2025 Approved
14 Copley Park London Lambeth SW16 3DD
Erection of a single storey ground floor side extension,including the replacement of the…
25/00869/FUL
2025 Approved
34 Copley Park London SW16 3DD
Back Garden: T1: Atlas Cedar: Reduce crown height and spread by 1.5m. Thin crown by 20%…
25/01339/TCA
2024 Refused
14 Copley Park London SW16 3DD
Erection of a single storey ground floor rear/side extension; erection of a rear dormer r…
24/03903/FUL
2024 Approved
39 Copley Park London Lambeth SW16 3DB
Replacement of front windows with double glazed windows, the repair of roof tiles, and re…
24/03024/FUL
2024 Approved
48 Copley Park London SW16 3DB
Erection of a single storey ground floor rear extension and a rear dormer roof extension.
24/02229/FUL
2024 Approved
59 Baldry Gardens London SW16 3DL
Back Garden, 21 Braxted Park, SW16 3DU: T1 Robinia: Cut back overhanging branches by up t…
24/02983/TCA
2024 Approved
35 Copley Park London SW16 3DD
Replacement of existing single storey outbuilding in rear garden - Ground floor flat.
24/02005/FUL
2024 Refused
48 Copley Park London Lambeth SW16 3DB
Erection of a ground floor, rear single storey extension and a rear dormer extension.
24/01259/FUL
2019 Approved
29 Braxted Park London SW16 3DU
To crown reduce 1 x False Acacia tree (T1) to rear of property by up 3 metres all around.
19/03267/TCA
2023 Approved
15 Braxted Park London Lambeth SW16 3DW
Erection of a rear dormer roof extension and the installation of 2 roof lights within the…
23/02197/FUL
2023 Approved
25 Copley Park London Lambeth SW16 3DD
Demolish existing rear single storey leanto cupboard and installation of new rear window…
23/01218/FUL
2023 Approved
21 Braxted Park London SW16 3DU
To remove 2 x Pyrancantha trees (T1/T2) and prune 1 x Pear tree (T3) to remove deadwood a…
23/00978/TCA
2022 Approved
9 Copley Park London Lambeth SW16 3DE
Replacement of single glazed sash and casement windows with double glazed windows to matc…
22/04551/FUL
2022 Approved
27 Copley Park London Lambeth SW16 3DD
Removal and replacement of paved driveway (forecourt) in front of house.
22/04166/FUL
2022 Approved
27 Copley Park London Lambeth SW16 3DD
1 x Tree of Heaven (T1) - remove.
22/02866/TCA
2022 Approved
17 Copley Park London SW16 3DD
1 x Lime tree (T1) - reduce height and laterals by up to 2 metres and remove all regrowth…
22/03567/TCA
2022 Approved
9 Copley Park London Lambeth SW16 3DE
Installation of high level fixed window to side elevation.
22/01746/FUL
2016 Approved
22 Copley Park London SW16 3DD
Alterations to fenestration including the removal of two rear/side windows at ground floo…
16/02681/FUL
2016 Withdrawn
77 Heybridge Avenue London SW16 3DS
Conversion of existing single dwelling into 3no. flats involving the relocation of main e…
16/02709/FUL
2016 Approved
34 Copley Park London SW16 3DD
To crown thin 1 x Atlas Cedar tree to rear of property by 20-25% and reduce in height by…
16/02309/TCA
2016 Approved
21 Braxted Park London SW16 3DU
Replacement of existing paving and erection of a new front boundary wall.
16/01464/FUL
2016 Refused
49 Braxted Park London SW16 3AU
Removal of existing window to the main front gable, replacement of existing front rooflig…
16/01025/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