Palace Place Mansions, 36 Kensington Court, London, W8 5BB Data via plota.co.uk

PP/25/00037 - Planning Permission Refused

Proposal

Construction of a Mansard roof extension with a full additional storey and an additional mezzanine level within, covering no more than 50% of the internal floor area?to create four additional units.(Amended description) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
24 Dec 2024
✗
Refused
27 Jun 2025
Appeal
Appeal Pending

Refused on 27 Jun 2025 · Last checked 24 Oct 2026

Documents

View the documents on the council's website ↗

Site constraints 13

Kensington Court 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 Named permitted development rights are withdrawn here.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.
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
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 ↗
35 listed buildings within 150 m of the postcode pin
Nearest: 9, Young Street, Grade II, about 22 m from the postcode pin · 3 Grade II*, 30 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 35 with distances
Historic England ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Registered park or garden about 136 m away: Kensington Gardens; Inside the Kensington and Chelsea built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square; National infrastructure project about 1102 m away: London Strategic Heat Main Project, at pre-application; Town centre about 5 m away: Kensington High Street; Designated open space about 42 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 2 November 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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Important details

Council
Kensington and Chelsea
Application type
Planning Permission
Postcode
W8 5BB
Received
24 Dec 2024
Validated
24 Dec 2024
Ward
Queen's Gate
Case officer
Show
Target decision
18 Feb 2025
Decision
Refused
Decision date
27 Jun 2025

How this decision compares

Decided in 185 days from validation, 107 days slower than Kensington and Chelsea's median of 78 for full applications. Refused, as 6% of full applications here are.

36%decided within 8 weeks
94%approved
1,540decided in the last year

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

Consultation & key dates

Comments by
25 Apr 2025

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
38A Kensington High Street, London, W8 4PF
Installation of 1no. internally illuminated facia sign, 1no. non- illuminated projecting…
CA/25/06697
2025 Approved
Basement And Ground Floor, 9 Young Street, London, W8 5EH
Replacement of existing extraction and ventilation plant and ducting on rear flat roof wi…
PP/25/05286
2025 Approved
Basement And Ground Floor, 9 Young Street, London, W8 5EH
Replacement of existing extraction and ventilation plant and ducting on rear flat roof wi…
LB/25/05287
2025
7 Kensington High Street, London, W8 5NP
Change of use of the basement level from Class E (restaurant/breakfast room) to Class C1…
PP/25/06277
2025 Approved
Second Floor Flat, 3 Kensington Square, London, W8 5EP
Upgrade glass on front sash windows and one rear window of flat from single glazed to 'Fi…
LB/25/05004
2025 Approved
Second Floor Flat, 3 Kensington Square, London, W8 5EP
Upgrade glass on front sash windows and one rear window of flat from single glazed to 'Fi…
PP/25/05003
2025 Withdrawn
Basement And Ground Floor, 9 Young Street, London, W8 5EH
Replacement of extraction and ventilation plant and ducting on rear flat roof along with…
LB/25/02897
2025 Withdrawn
Basement And Ground Floor, 9 Young Street, London, W8 5EH
Replacement of extraction and ventilation plant and ducting on rear flat roof along with…
PP/25/02896
2025 Approved
First Floor Flat, 3 Kensington Square, London, W8 5EP
Upgrade glass on front sash windows from single glazed to 'Fineo' with the retention of w…
LB/25/01649
2025 Approved
First Floor Flat, 3 Kensington Square, London, W8 5EP
Upgrade glass on front sash windows from single glazed to 'Fineo' with the retention of w…
PP/25/01648
2025 Approved
Second And Third Floor Flat, 9 Young Street, London, W8 5EH
Use of flat roof as a roof terrace, together with associated alterations including new me…
PP/25/01276
2025 Approved
Second And Third Floor Flat, 9 Young Street, London, W8 5EH
Use of flat roof as a roof terrace, together with associated alterations including new me…
LB/25/01277
2025 Approved
Second And Third Floor Flat, 9 Young Street, London, W8 5EH
Internal alterations, including installation of internal secondary glazing to front eleva…
LB/25/00953
2025 Approved
Second And Third Floor Flat, 9 Young Street, London, W8 5EH
Internal alterations to the second floor; including new internal secondary glazing to fro…
LB/25/00952
2025
47-53 Kensington High Street, LONDON, W8 5ED
The removal of 3no. existing antennas to be replaced by 3no. new antennas and ancillary w…
NOT/25/02750
2024 Refused
Second And Third Floor Flat, 9 Young Street, London, W8 5EH
Internal alterations to flat at second and third floor level; installation of internal se…
LB/24/07391
2024 Refused
Second And Third Floor Flat, 9 Young Street, London, W8 5EH
Internal alterations to flat at second and third floor level; installation of internal se…
PP/24/07390
2024 Approved
47 Kensington Court, LONDON, W8 5DA
Installation of 1No. externally illuminated fascia text and 1No. externally illuminated p…
CA/24/05546
2024 Refused
Second And Third Floor Flat, 9 Young Street, LONDON, W8 5EH
Internal alterations at second and third floor level (Listed Building Consent only)
LB/24/04609
2024 Approved
55 Kensington High Street, LONDON, W8 5ED
Replacement of 1no internally illuminated fascia panel, 3no new logos, 2no internally ill…
CA/24/04560
2017 Approved
21 Kensington High Street, London, W8 5NP
Verification Order required for the confirmation of the seperately accessed residential u…
SNN/17/05516
2017 Approved
Flat 84, Kensington Court Mansions, 62-97 Kensington Court, LONDON, W8 5DT
Installation of external air conditioner unit with acoustic enclosure on roof
PP/17/04180
2017 Approved
47C Kensington Court, LONDON, W8 5DA
Change of use of first and second floors from education (Class D1) to office (Class B1a)…
PP/17/03154
2017 Approved
59-61 Kensington High Street, LONDON, W8 5ED
Change of use of first, second and part third floor from education (Class D1) to office (…
PP/17/03159
2017 Approved
Second Floor, 5 Young Street, LONDON, W8 5EH
Replacement of windows and door to terrace at rear for easier access
PP/17/01730
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