11 Cornwall Gardens, London, SW7 4AL Data via plota.co.uk

Approved LB/26/04371
Extensions & alterations
Council
Kensington and Chelsea 5.1/10
Date received
18 Aug 2026
Date validated
18 Aug 2026
Decision date
15 Oct 2026
Postcode
SW7 4AL
Freehold owner
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Description

Replacement of rear roofs at lower ground floor level with single flat roof, extension of existing terrace over roof, and associated works Data via plota.co.uk

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Last checked

How this decision compares

Decided in 58 days from validation, 25 days faster than Kensington and Chelsea's median of 83 for extensions. Approved, as 96% of extensions here are.

33%decided within 8 weeks
96%approved
1,426decided 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 →

Site constraints 9

15 listed buildings within 150 m of the postcode pin
Nearest: 6-16, Cornwall Gardens Sw7, Grade II, the postcode pin is inside its outline · 15 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 15 with distances
Historic England ↗
Cornwall 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 ↗
Article 4 direction
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 Named permitted development rights are withdrawn here.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 ↗
Also on the record
National infrastructure project about 1525 m away: Thames Tideway Tunnel; Inside the Kensington and Chelsea built-up area; Public transport access: PTAL 6a (excellent), TfL 2023, for the 100 m square; Designated open space about 20 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, 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.

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Other new applications on this street

18 Aug 2026Pending

Flat 2, 9 Cornwall Gardens, London, SW7 4AL

Details required by condition 3 (submission of details) of listed building 26/02...

CON/26/04491
17 Jun 2026Approved

Flat 7, 6 Cornwall Gardens, London, SW7 4AL

Renovation and minor alterations to ground floor flat.

LB/26/01577
7 Oct 2026Pending

Fourth And Fifth Floor Flat, 21 Cornwall Gardens, London, SW7 4AW

External and internal alterations including installation of an air-conditioning ...

LB/26/05447
25 Aug 2026Pending

Flat 6, 61 Cornwall Gardens and Flat 7, 60 Cornwall Gardens, London, SW7 4BE

Amalgamation of Flat 6, 61 Cornwall Gardens and Flat 7, 60 Cornwall Gardens to f...

LB/26/04600

Nearby new applications

13 Oct 2026Pending

1 Kelso Place, London, W8 5QD

Construction of single storey side infill extension; construction of single stor...

PP/26/05448
12 Oct 2026Pending

Flat 5, Boston House, 31 Collingham Road, London, SW5 0NS

Removal of single-glazed timber sash windows and replacement with new purpose-ma...

CL/26/00466
12 Oct 2026Pending

45 Hyde Park Gate, London, SW7 5DU

Prune 1 x Sycamore and 1 x Ailanthus

ARB/26/05498
9 Oct 2026Pending

Christ Church, Victoria Road, London, W8 5RQ

External landscaping works to provide sloped access to doors, paved area with cy...

PP/26/05344
9 Oct 2026Pending

10 Cottesmore Gardens, London, W8 5PR

Prune 1 x Holm Oak (rear)

ARB/26/05432
8 Oct 2026Pending

Natural History Museum, Cromwell Road, London, SW7 5BD

Details required by Condition 3d (submission of details-alterations and repairs ...

CON/26/05452

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

2019 Approved
Replacement of 1no. roof light window to rear secondary roof. Window consists of four Geo…
LB/19/04420
Within ~100m

Nearby activity

2025 Approved
Flat 2, 9 Cornwall Gardens, London, SW7 4AL
Internal refurbishment of flat including removal of existing partitions, finishes and fit…
LB/25/06435
2025 Approved
25 Launceston Place, London, W8 5RN
Prune 1 x Magnolia (rear)
ARB/25/06209
2025 Withdrawn
Flat 5, 8 Cornwall Gardens, London, SW7 4AL
Internal reconfiguration and refurbishment***Withdrawn***
LB/25/06312
2025
Flat H, 45 Gloucester Road, London, SW7 4QL
Erection of a mansard addition to the front
PP/26/00092
2025 Approved
Flat 6, 9 Cornwall Gardens, London, SW7 4AL
Internal works to flat (Retrospective Application)
LB/25/05134
2025 Approved
20 Launceston Place, London, W8 5RL
Prune 1x Robinia at front
ARB/25/05861
2025 Approved
Flat H, 45 Gloucester Road, London, SW7 4QL
Variation of condition 2 (compliance with approved drawings) of planning permission 24/05…
PP/25/05308
2025 Approved
Flat 5, 89 Cornwall Gardens, London, SW7 4AX
Internal alterations.
LB/25/02230
2025 Approved
Flat 14, 1-3 Cornwall Gardens, London, SW7 4AJ
Replacement of windows and doors at front and rear.
PP/25/03101
2025 Approved
Flat 17, 15-16 Cornwall Gardens, London, SW7 4AN
Replacement of sliding doors onto external balcony. No alterations or works to any extern…
LB/25/00700
2024 Approved
84 Cornwall Gardens, London, SW7 4AY
Resurfacing of ground floor front ceramic tiled steps with new limestone
LB/24/08149
2024 Approved
84 Cornwall Gardens, London, SW7 4AY
Resurfacing of ground floor front ceramic tiled steps with new limestone
PP/24/08148
2024 Approved
Flat 5, 24 Cornwall Gardens, LONDON, SW7 4AW
Roof alterations to replace mansard with larger mansard to enlarge 4th floor flat
LB/24/05954
2024 Approved
Flat 5, 24 Cornwall Gardens, LONDON, SW7 4AW
Roof alterations to replace mansard with larger mansard to enlarge 4th floor flat
PP/24/05953
2024 Approved
Flat H, 45 Gloucester Road, LONDON, SW7 4QL
Erection of mansard roof extension with dormers to replace low pitch roof facing West; in…
PP/24/05552
2024 Refused
53 Gloucester Road, LONDON, SW7 4QN
Rear extension to existing fourth floor flat. Roof extension above to create additional 5…
PP/24/05443
2024 Approved
58 Gloucester Road, LONDON, SW7 4QT
Installation of externally illuminated fascia and projecting signs and one window viny, t…
CA/24/05520
2024 Approved
Flat 3, 24 Cornwall Gardens, LONDON, SW7 4AW
New external lightweight stone decked terrace area surrounded by black painted metal hand…
LB/24/04261
2024 Approved
Flat 3, 24 Cornwall Gardens, LONDON, SW7 4AW
New external lightweight stone decked terrace area surrounded by black painted metal hand…
PP/24/04260
2024 Withdrawn
Flat 5, 24 Cornwall Gardens, LONDON, SW7 4AW
Replacement of existing mansard with a larger mansard to enlarge the 4th floor flat***WIT…
LB/24/03729
2018 Approved
25 Launceston Place, LONDON, W8 5RN
Prune 1 x Lime 1 x Cherry (front) and 1 x Magnolia (rear)
ARB/18/05856
2018 Approved
Flat 7, 93 Cornwall Gardens, LONDON, SW7 4AX
Change slope of top part of rear mansard roof and reposition and alteration of rooflights…
LB/18/05459
2018 Approved
Flat 7, 93 Cornwall Gardens, LONDON, SW7 4AX
Change slope of top part of rear mansard roof and reposition and alteration of rooflights…
PP/18/05458
2018 Withdrawn
Flat 7, 93 Cornwall Gardens, LONDON, SW7 4AX
Changing the slope of top part of rear mansard roof at 4th floor; reposition and alterati…
LB/18/03901
2018 Decided
West Garden, Cornwall Gardens, London SW7 4AW
Prune 1 x Horse Chestnut and 1 x Sycamore (West Garden)
ARB/18/04140
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.