29 Chelsea Square, London, SW3 6LQ Data via plota.co.uk

CL/26/05832 - Certificates Lawful Proposed Use or Dev. Consultation
Extensions & alterations

Proposal

Replacement of existing external ground-floor door on western courtyard elevation with new window within existing opening. (Certificate for a Proposed Use or Development) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
29 Oct 2026
✓
Validated
3 Nov 2026
Decision
Expected by 29 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 3 Jan 2027 and 11 Feb 2027, from Kensington and Chelsea's recent extensions.

Comments are open until 27 Nov 2026

Comment on this application ↗

Documents

View the documents on the council's website ↗

Site constraints 10

Chelsea Park/Carlyle 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 ↗
2 Article 4 directions
Article 4 - No 100 · Article 4 - No 89. Named permitted development rights are withdrawn here.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 ↗
National infrastructure project 480 m away: Thames Tideway Tunnel
The site is 480 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, 778 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 ↗
7 listed buildings within 150 m
Nearest: 40, Chelsea Square Sw3, Grade II*, 60 m away · 3 Grade II*, 4 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 7 with distances
Historic England ↗
Also on the record
Registered park or garden 211 m away: St Luke's Garden; Inside the Kensington and Chelsea built-up area; Public transport access: PTAL 6a (excellent), TfL 2023, for the 100 m square; Designated open space 10 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 November 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 4

Last sold for £21,500,000 in September 2024. Terraced house, freehold.

30 September 2024£21,500,000
24 April 2006£8,200,000
2 September 2005£2,250,000
14 January 2005£3,250,000Leasehold

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

Building

Floor area590 m² (6,351 sq ft)
Energy ratingD (64 out of 100), could reach C
PropertySemi-detached house, 9 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in July 2022, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Other new applications on this street

21 Aug 2026Approved

15 Chelsea Square, London, SW3 6LF

Details required by conditions 3 (Construction Traffic Management Plan (CTMP)) a...

CON/26/04528

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Replacement external doors to match existing.

LB/26/05957
6 Nov 2026Pending

6 Reece Mews, London, SW7 3HE

Replacement mansard roof and alterations to roof terrace, replacement windows, e...

PP/26/05954
5 Nov 2026Pending

18 Paultons Square, London, SW3 5AP

Prune 1 x Tilia Europaea (Lime) in rear garden.

ARB/26/05972
3 Nov 2026Pending

21 Oakley Gardens, London, SW3 5QH

FELL 1 x Cherry (front)

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2 Nov 2026Pending

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Important details

Council
Kensington and Chelsea
Application type
Certificates Lawful Proposed Use or Dev.
Postcode
SW3 6LQ
Received
29 Oct 2026
Validated
3 Nov 2026
Ward
Stanley
Target decision
29 Dec 2026
Applicant
Show

Decision outlook

Day 8 of the 56-day target. Kensington and Chelsea usually decides extensions by day 78.

Day 870 days to the predicted decision (day 78)
35%decided within 8 weeks
95%approved
1,595decided 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
27 Nov 2026

Historical activity at this location

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

This property

Previous applications at this address

2020 Approved
Prune 1 x Honey locust (rear)
ARB/20/05647
2017 Approved
Re-positioning of 3 windows and addition of 1 window on street elevation.
PP/17/03245
2017 Approved
Details required by condition 5 (Professional management of engineering works) and 6 (CTM…
CON/17/00388
2016 Approved
Re-positioning of No2 windows on ground floor front elevation
PP/16/08706
2016 Approved
Excavation to extend basement under 50% of rear garden and replacement of glazed roofligh…
PP/16/05793
2016 Approved
Prune 1 x Gleditsia triacanthos
ARB/16/06229
Within ~100m

Nearby activity

2025 Approved
21 Carlyle Square, London, SW3 6EY
Replacement of existing timber windows for double glazed timber windows, without any chan…
CL/25/06114
2025 Approved
21 Carlyle Square, London, SW3 6EY
Replacement of rear ground floor windows to doors; rear door replacement; raised rear bal…
PP/25/06108
2025 Approved
38 Chelsea Square, London, SW3 6LH
Variation of condition 2 (approved drawings) of planning permission 23/08025 to allow rem…
PP/25/05633
2025 Approved
77 Dovehouse Street, London, SW3 6JZ
Prune 1 Magnolia (rear)
ARB/25/06002
2025 Approved
65 Dovehouse Street, London, SW3 6JY
Amendments to consented scheme PP/24/04167 to alter roof form; introduction of raised par…
PP/25/05215
2025 Approved
20 Carlyle Square, London, SW3 6EY
Prune 1x Magnolia (Magnolia spp) at front
ARB/25/05967
2025 Approved
63 Dovehouse Street, London, SW3 6JY
Prune 1 x Magnolia (rear)
ARB/25/05560
2025 Approved
14 Chelsea Square, London, SW3 6LF
Installation of air conditioning units, and retention of timber screen fence and doors wi…
PP/25/02407
2024 Approved
77 Dovehouse Street, London, SW3 6JZ
Reconfiguration of lower ground floor rear light well and steps to garden. Levelling acro…
PP/24/07542
2024 Approved
15 Chelsea Square, LONDON, SW3 6LF
Installation of five air conditioning units within a louvered acoustic enclosure at rear…
PP/24/05884
2024 Approved
15 Chelsea Square, LONDON, SW3 6LF
Variation of condition 2 (Compliance with approved drawings) of planning permission 23/02…
PP/24/03058
2024 Withdrawn
15 Chelsea Square, LONDON, SW3 6LF
Installation of one air conditioning unit within acoustic enclosure at rear second floor…
PP/24/02865
2024 Withdrawn
14 Chelsea Square, LONDON, SW3 6LF
Installation of one air conditioning unit at the rear of the second floor roof terrace, w…
PP/24/02613
2024 Approved
23 Chelsea Square, LONDON, SW3 6LF
FELL 2 x Pencil Pine (Cupressus spp) (front) and Prune 1 x Mimosa (Acacia dealbata) (fron…
ARB/24/02254
2024
15 Chelsea Square, LONDON, SW3 6LF
Details required by Condition 2 (Compliance with approved drawings) for planning permissi…
CON/24/03058
2023 Approved
13 Chelsea Square, London, SW3 6LF
Decision Order required to name the residential property as follows:Midsummer House, 13 C…
SNN/23/07530
2023 Approved
21 Carlyle Square, London, SW3 6EY
Excavation of new basement storey below footprint of existing dwelling, extending partial…
PP/23/02668
2023 Approved
73 Dovehouse Street, London, SW3 6JZ
Relocation of entrance door to form internal porch, and installation of solid door with g…
PP/23/04266
2023 Approved
73 Dovehouse Street, London, SW3 6JZ
Construction of lightwell with flush metal grille and insertion of windows and doors to r…
PP/23/03945
2023 Refused
38 Chelsea Square, London, SW3 6LH
Erection of a 3 storey rear extension, alterations to fenestration, lowering of lower gro…
PP/23/02489
2017 Refused
24 Chelsea Square, LONDON, SW3 6LF
Variation of condition 2 (approved drawings) of planning permission 14/01006 to allow add…
PP/17/01299
2016 Approved
33 Chelsea Square, LONDON, SW3 6LQ
Prune 1 x London Plane (front garden)
ARB/16/06900
2016 Refused
24 Chelsea Square, LONDON, SW3 6LF
Variation of condition 2 (approved drawings) of planning permission 14/01006 to include a…
PP/16/01796
2016 Approved
Garden R/O Chelsea Square, LONDON SW3 6LF
FELL x 1 Judas
ARB/16/01927
2016 Approved
18-26 Chelsea Square, LONDON, SW3 6LF
Erection of access gates to rear of Nos. 18 - 26 Chelsea Square.
PP/16/01353
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

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.