3 West Halkin Street London SW1X 8JJ Data via plota.co.uk
26/04464/FULL - Full Planning Permission Application
Approved
Proposal
Alterations to roof to provide a sunken plant room on the fifth floor attic space. (Linked with 26/04465/LBC) Data via plota.co.uk
Track application
Save this application and get an email when its status or decision changes.
Alerts nearby
Get email alerts for new planning applications near this address.
View original council record ↗
Application progress
✓
Received
6 Jul 2026
✓
Approved
21 Aug 2026
Approved on 21 Aug 2026 · Delegated Decision · Last checked 21 Aug 2026
Documents 22
Decision & officer reports 2
Statements & assessments 4
Plans & drawings 6
Application forms 1
Consultation & comments 1
Other documents 8
PDF
SITE NOTICE 21 OR 28 DAYS IF T&C APPL.
Background Papers · 9 Jul 2026
View ↗
PDF
CNSLT-LA SOCIETY
Background Papers · 9 Jul 2026
View ↗
PDF
CNSLT-LA SOCIETY
Background Papers · 9 Jul 2026
View ↗
PDF
CNSLT-LA SOCIETY
Background Papers · 9 Jul 2026
View ↗
PDF
ACK-GENERAL LETTER (G/P/C)
Background Papers · 9 Jul 2026
View ↗
PDF
RECEIPT OF APPLICATION
Other · 7 Jul 2026
View ↗
PDF
ACOUSTIC REPORT
Acoustic report · 6 Jul 2026
View ↗
PDF
FIRE STRATEGY
Background Papers · 6 Jul 2026
View ↗
Work with planning data? Every application in Westminster - and every UK council - as a live feed or API. About Plota's data service
Other new applications on this street
Nearby new applications
Elizabeth Street London
Display of Christmas lights at 6 locations along Elizabeth Street between Eaton ...
33 Clabon Mews, London, SW1X 0EQ
Creation of roof terrace on second floor flat roof surrounded by metal safety ra...
67 Brompton Road, London, SW3 1DB
Installation of a new roof top condenser unit and a new extract flue at the rear...
6 Wilton Place London SW1X 8RH
Damp proofing works to the lower ground floor
3 Clabon Mews, London, SW1X 0EG
Construction of side dormer roof extension and terrace
44 Wilton Crescent London SW1X 8RX
Replacement of slate roof coverings and associated leadwork, replacement of roof...
Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- SW1X 8JJ
- Received
- 6 Jul 2026
- Validated
- 6 Jul 2026
- Ward
- Knightsbridge & Belgravia
- Case officer
- Show
- Target decision
- 31 Aug 2026
- Decision
- Application Permitted
- Decision date
- 21 Aug 2026
- Decision level
- Delegated Decision
- Agent
- Savills
Public comments
No public comments yet.
62 neighbours consulted · Last counted 21 Aug 2026
Consultation & key dates
- Alt. reference
- PP-14878985
- Env. assessment
- No
Historical activity at this location
50 previous applications on record - archival context, not part of the live application.
This property
Previous applications at this address
2025
Withdrawn
Use of the site as seven residential flats; internal and external alterations including p…
2025
Use of the site as seven residential flats; internal and external alterations including c…
2020
Approved
Use as seven residential flats (Class C3) including the installation of plant at lower gr…
2020
Approved
Use as seven residential flats (Class C3) including the installation of plant at lower gr…
2019
Approved
Display of temporary non illuminated hoarding sign measuring 1.15m X 1.073m
2019
Withdrawn
Installation of a hoarding, lighting, and and CCTV. (Linked to 19/01711/FULL)
2019
Withdrawn
Installation of a hoarding, lighting, and and CCTV. (Linked to 19/01712/LBC)
2024
Approved
Breaking out of windows on the ground, 3rd and 4th floor levels and installation of new w…
2023
Approved
Details of new external doors (first floor only) pursuant to Condition 12.1 (part) of pla…
2023
Approved
Details of new external doors (first floor only) pursuant to Condition 4.10 (part) of lis…
2023
Approved
Details of new external windows and doors including dormer windows pursuant to Conditions…
2023
Approved
Details of new external windows and doors including dormer windows pursuant to Condition…
2022
Withdrawn
Details of new external windows and doors including dormer windows, pursuant to condition…
2022
Withdrawn
Details of all new internal doors, pursuant to condition 4 part 4 of listed building cons…
2022
Withdrawn
Details of new external windows and doors including dormer windows, pursuant to condition…
2022
Refused
Details of method statement relating to refurbishment of original stone flag floor at gro…
2022
Approved
Details of new skirtings and new architraves to match existing original examples pursuant…
2022
Approved
Details of replacement chimneypieces, pursusant to condition 4 part 2 of listed building…
2022
Approved
Details of new cornices, pursuant to condition 4 part 7 of listed building consent dated…
2022
Refused
Details of method statement relating to refurbishment of original stone flag floor at gro…
2022
Approved
Details of new staircase linking ground and lower ground floors including details of mate…
2022
Details of New front fanlight and main entrance door, pursuant to condition 12.2 of plann…
2022
Details of New front fanlight and main entrance door, pursuant to condition 4.12 of plann…
2022
Details of Secondary glazing, pursuant to conditon 4.1 of planning listed building consen…
2021
Withdrawn
Details of new external windows and doors including dormer windows (1:10 and 1:20) and ne…
Within ~100m
Nearby activity
2025
15 Halkin Mews London SW1X 8JZ
Installation of two sets of traditional-style window security bars to the existing ground…
2025
Flat 5 6 West Halkin Street London SW1X 8JA
Alterations to existing flat roof to form roof terrace at third floor level including rep…
2025
Flat 5 6 West Halkin Street London SW1X 8JA
Alterations to existing flat roof to form roof terrace at third floor level including rep…
2025
12 Belgrave Square London SW1X 8PN
Proposal is 1 x false acacia - fell.
2025
15 Halkin Mews London SW1X 8JZ
Installation of two sets of traditional-style window security bars to the existing ground…
2025
Approved
11A West Halkin Street London SW1X 8JL
Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus to a Listed Bu…
2025
13 Motcomb Street London SW1X 8LB
Relocation of existing condensers to within lower ground front vaults and new acoustic lo…
2025
13 Motcomb Street London SW1X 8LB
Relocation of existing condensers to within lower ground front vaults and new acoustic lo…
2025
17 Belgrave Square London SW1X 8PG
Replacement of existing windows on all elevations of the building at 17 Belgrave Square a…
2025
17 Belgrave Square London SW1X 8PG
Replacement of existing windows on all elevations of the building at 17 Belgrave Square a…
2025
1 West Halkin Street London SW1X 8JJ
Insertion of two passenger lifts within existing listed building
2025
Approved
12A Lowndes Street London SW1X 9EX
Replacement of front Juliet doors and sash windows with new timber double glazed doors an…
2025
Approved
12A Lowndes Street London SW1X 9EX
Replacement of front Juliet doors and sash windows with new timber double glazed doors an…
2025
25 - 26 Motcomb Street London SW1X 8JU
Replacement of vacant ground and lower ground cafe fixtures with new cafe fit out compris…
2025
Approved
17 Belgrave Square London SW1X 8PG
Replacement of existing lift shaft, repositioning of two windows and one door and upgradi…
2025
Approved
17 Belgrave Square London SW1X 8PG
Replacement of existing lift shaft, repositioning of two windows and one door and upgradi…
2025
4A Belgrave Mews West London SW1X 8HT
Installation of an air source heat pump at roof level.
2025
Approved
Flat 5 6 West Halkin Street London SW1X 8JA
Installation of double glazed heritage slimline profile windows to the front fourth floor…
2025
Approved
Flat 5 6 West Halkin Street London SW1X 8JA
Installation of double glazed heritage slimline profile windows to the front fourth floor…
2025
Approved
5 Motcomb Street London SW1X 8JU
Installation of an externally illuminated fascia sign and a non-illuminated hanging sign.
2018
Approved
4 Motcomb Street London SW1X 8JU
Display of non-illuminated fascia and hanging signs measuring 0.53m x 2.15m and 0.61m x 0…
2018
Approved
4 Motcomb Street London SW1X 8JU
Installation of fascia and hanging signs.
2018
Refused
4 Motcomb Street London SW1X 8JU
Alterations to shopfront window.
2017
Approved
West Halkin Street London
Installation of new electric vehicle charging point and a feeder pillar in front of raili…
2018
Refused
Telephone Kiosk Outside 8 West Halkin Street London
Removal of existing BT payphone kiosks and the erection of a freestanding ('InLink') stru…
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Householder decisions
Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster 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
Westminster decision performance
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #201 of 296
81%
Householder approved
Below avg (90%) #277 of 296
44%
Decided in 8 weeks
Below avg (63%) #258 of 296
28%
Extended time limit
Below avg (41%) #46 of 296
83%
Minor dwellings approved
12 decided (1-9 homes)
67%
Major dwellings approved
3 decided (10+ homes)
81%
Change of use approved
133 decided
4,602
Total decisions
648 refused in the year to March 2026
Track this application
3 West Halkin Street London SW1X 8JJ
✓
Tracking this application
Not there in a minute? Check junk - especially Hotmail and Outlook.
Go to your dashboard →Sign in to view contact details
Applicant and case-officer names are hidden from public view for privacy. Create a free Plota account - or sign back in - and we'll show them, plus you get a dashboard for alerts and tracked applications.
✉