81 Blenheim Crescent, London, W11 2EG Data via plota.co.uk

PP/26/02135 - Planning Permission Approved
Extensions & alterations

Proposal

Replacement sash & casement windows with heritage style double glazed sash & casement units, to closely match existing Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
5 May 2026
✓
Approved
17 Jun 2026

Approved on 17 Jun 2026 · Last checked 21 Oct 2026

Documents

View the documents on the council's website ↗

Site constraints 9

Ladbroke 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 ↗
3 Article 4 directions
Article 4 - No 41 · Article 4 - No 68 · Article 4 - No 100. Named permitted development rights are withdrawn here.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.
Tree preservation order
Consent is needed before work on protected trees.
Not every council has published its orders as open data, so no order shown is not proof there is none.
Air quality management area: Kensington and Chelsea 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 ↗
Registered park or garden about 17 m away: Ladbroke Estate
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Also on the record
Inside the Kensington and Chelsea built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square; Priority habitat about 19 m away: Deciduous woodland; Designated open space about 18 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. 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
Kensington and Chelsea
Application type
Planning Permission
Postcode
W11 2EG
Received
5 May 2026
Validated
5 May 2026
Ward
Norland
Case officer
Show
Target decision
30 Jun 2026
Decision
Granted
Decision date
17 Jun 2026
Freehold owner
Show

How this decision compares

Decided in 43 days from validation, 40 days faster than Kensington and Chelsea's median of 83 for extensions. Approved, as 95% of extensions here are.

33%decided within 8 weeks
95%approved
1,441decided in the last year

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

Consultation & key dates

Comments by
29 May 2026

Historical activity at this location

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

This property

Previous applications at this address

2018 Approved
Prune 1 x tilia europaea (front)
ARB/18/02806
Within ~100m

Nearby activity

2025 Approved
105 Blenheim Crescent, London, W11 2EQ
Replacement of existing box sash windows to front and rear elevations - like for like but…
PP/25/06421
2025 Approved
Gardens Rear Of 50/120, Elgin Crescent, London
FELL and Prune as specified
ARB/25/06292
2025 Approved
72 Blenheim Crescent, London, W11 1NZ
Prune 1x Sycamore at rear
ARB/25/06675
2025 Approved
72 Blenheim Crescent, London, W11 1NZ
Replacement of existing French doors on rear elevation at lower ground and ground floor l…
PP/25/04638
2025 Approved
72 Blenheim Crescent, London, W11 1NZ
Replacement of existing windows with double glazed units, replacement of bin store within…
PP/25/04543
2025 Approved
66 Blenheim Crescent, London, W11 1NZ
Partial reconstruction of existing rear extension at upper ground floor level with new bi…
PP/25/03778
2025 Approved
First Floor Flat, 58 Blenheim Crescent, London, W11 1NY
Construction of extension onto rear second floor terrace. Installation of low profile roo…
PP/25/01818
2025 Withdrawn
62 Elgin Crescent, London, W11 2JJ
***WITHDRAWN***Installation of domestic air conditioning unit in light well on front elev…
PP/25/01230
2025 Approved
Gardens Rear Of 50/120, Elgin Crescent, London, W11 2JF
Prune 1x Sycamore Tree behind105 Elgin Crescent
ARB/25/02082
2024 Approved
71 Blenheim Crescent, London, W11 2EG
Installation of two external air conditioning condenser units to the mansard roof.
PP/24/08552
2024 Approved
113 Blenheim Crescent, London, W11 2EQ
Rehanging front entrance gate from pavement, re-forming front entrance steps and lower an…
PP/24/08428
2024 Approved
62 Elgin Crescent, LONDON, W11 2JJ
Extension of rear lower ground floor. Extending rear mansard. Add recessed heritage skyli…
PP/24/05523
2024 Approved
125 Blenheim Crescent, LONDON, W11 2EQ
Internal remodelling; introduction of lower ground floor boiler room underneath the front…
PP/24/03226
2024 Approved
117 Blenheim Crescent, LONDON, W11 2EQ
Installation of a single air conditioning unit to rear garden. (Retrospective Application)
PP/24/04540
2024 Approved
71 Blenheim Crescent, LONDON, W11 2EG
Replacement of single glazed windows with slimline double glazed like-for-like windows. R…
PP/24/03097
2024 Withdrawn
125 Blenheim Crescent, LONDON, W11 2EQ
****WITHDRAWN****Construction of boiler room underneath front driveway accessed from ligh…
PP/24/03415
2023 Approved
Thomas Jones Primary School, St Mark's Road, LONDON, W11 1RQ
Installation of the air source heat pumps
PP/23/07913
2023 Approved
Second Floor Flat, 58 Elgin Crescent, LONDON, W11 2JJ
Prune 2x Lime trees (Tilia spp) in front garden
ARB/23/07374
2023 Approved
52 Elgin Crescent, LONDON, W11 2JJ
Prune 1x Cherry in front garden
ARB/23/07279
2023 Withdrawn
Thomas Jones Primary School, St Mark's Road, London, W11 1RQ
Installation of air source and water to water heat pumps ***WITHDRAWN***
PP/23/05812
2016 Withdrawn
56 Elgin Crescent, LONDON, W11 2JJ
Variation of condition 2 (Compliance with approved drawings) of planning permission PP/15…
PP/16/03528
2016 Refused
59 and 61 Blenheim Crescent, LONDON, W11 2EG
Creation of mansard roofs to both properties, with front and rear dormer windows, and roo…
PP/16/02142
2016 Approved
59 and 61 Blenheim Crescent, LONDON, W11 2EG
Alterations to No. 61 including reinstatement of bay windows to lower and ground floors…
PP/16/02367
2016 Approved
74 Elgin Crescent, LONDON, W11 2JJ
PRUNE 1 x Lime Tilia (front centre)
ARB/16/02428
2016 Withdrawn
79 Blenheim Crescent, LONDON, W11 2EG
Construction of replacement single storey rear extension ***WITHDRAWN***
PP/16/00991
Kensington and Chelsea
Planning Authority Score
5.1/10
Average
#144 of 296 councils
Relevant to this application:
Householder decisions

Kensington and Chelsea ranks #174 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Kensington and Chelsea decision statistics
Based on MHCLG data, the nine months to December 2025
93%
Overall approval rate
Above avg (87%) #58 of 296
94%
Householder approved
Above avg (90%) #110 of 296
61%
Decided in 8 weeks
Below avg (63%) #174 of 296
40%
Extended time limit
Below avg (41%) #152 of 296
94%
Minor dwellings approved
455 decided (1-9 homes)
87%
Change of use approved
53 decided
1,839
Total decisions
135 refused in the nine months to December 2025
Source: MHCLG planning statistics · See full council rankings

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.