6 Wilton Street London SW1X 7AF Data via plota.co.uk
26/01273/FULL - Full Planning Permission Application
Approved
Proposal
Removal of existing roof and rear third floor mansard and replacement with fourth floor mansard extension; replacement of front third floor windows and new rear third floor windows. Data via plota.co.uk
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View original council record ↗Last checked
Application progress
✓
Received
27 Feb 2026
✓
Approved
5 Aug 2026
Approved on 5 Aug 2026 · Last checked 11 Aug 2026
Documents 42
Statements & assessments 5
PDF
HERITAGE STATEMENT ADDENDUM
Heritage Statement · 15 Jul 2026
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HERITAGE STATEMENT
Heritage Statement · 2 Mar 2026
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PLANNING STATEMENT
Planning Statement · 2 Mar 2026
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HERITAGE STATEMENT
Superseded document · 27 Feb 2026
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PLANNING STATEMENT
Superseded document · 27 Feb 2026
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Plans & drawings 24
PDF
EXISTING & PROPOSED FRONT & REAR ELEVATIONS
Drawing · 15 Jul 2026
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PDF
PROPOSED FLOOR PLANS
Drawing · 15 Jul 2026
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PDF
PROPOSED SECTION C.C
Drawing · 15 Jul 2026
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LOCATIONPLAN
Drawing · 2 Mar 2026
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LOCATION PLAN
Drawing · 2 Mar 2026
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EXISTING BASEMENT PLAN
Drawing · 2 Mar 2026
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EXISTING SECTION A.A
Drawing · 2 Mar 2026
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EXISTING SECTION B.B
Drawing · 2 Mar 2026
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EXISTING SECTION C.C
Drawing · 2 Mar 2026
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PROPOSED BASEMENT PLAN
Superseded document · 2 Mar 2026
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PDF
PROPOSED SECTION A.A & NEW DOOR DETAILS
Drawing · 2 Mar 2026
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PROPOSED SECTION C.C
Superseded document · 2 Mar 2026
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EXISTING & PROPOSED ELEVATIONS
Superseded document · 2 Mar 2026
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PDF
PROPOSED SECTION B.B & ROOF PLAN
Drawing · 2 Mar 2026
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LOCATION PLAN
Superseded document · 27 Feb 2026
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PDF
LOCATION PLAN
Superseded document · 27 Feb 2026
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PDF
EXISTING BASEMENT PLAN
Superseded document · 27 Feb 2026
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PDF
EXISTING SECTION B.B
Superseded document · 27 Feb 2026
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PDF
EXISTING SECTION C.C
Superseded document · 27 Feb 2026
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PDF
EXISTING & PROPOSED ELEVATIONS
Superseded document · 27 Feb 2026
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PDF
PROPOSED BASEMENT PLAN
Superseded document · 27 Feb 2026
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PDF
PROPOSED SECTION B.B & ROOF PLAN
Superseded document · 27 Feb 2026
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PDF
PROPOSED SECTION A.A & NEW DOOR DETAILS
Superseded document · 27 Feb 2026
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PDF
PROPOSED SECTION C.C
Superseded document · 27 Feb 2026
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Application forms 1
Consultation & comments 4
Other documents 8
PDF
ACK-GENERAL LETTER (G/P/C)
Background Papers · 1 Apr 2026
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CNSLT-LA SOCIETY
Background Papers · 1 Apr 2026
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CNSLT-LA SOCIETY
Background Papers · 1 Apr 2026
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CNSLT-LA SOCIETY
Background Papers · 1 Apr 2026
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SITE NOTICE 21 OR 28 DAYS IF T&C APPL.
Background Papers · 1 Apr 2026
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PDF
RECEIPT OF APPLICATION
Background Papers · 27 Mar 2026
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PDF
APPLICATIONFORMREDACTED
Superseded document · 27 Feb 2026
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021
Superseded document · 27 Feb 2026
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Associated applications 2
Site constraints 8
Grade II listed: 4-15, Wilton Street Sw1
List entry 1357380 · 12 m away · 18 more listed buildings within 150 m (3 Grade II*, 15 Grade II)
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 the other 18 with distances
- 26 m1-3, Wilton Street Sw1Grade II
- 57 m16-23, Wilton Street Sw1Grade II
- 63 m18-32, Chester Street Sw1Grade II
- 71 m16a, Wilton Street Sw1Grade II
- 84 mChurch of St PeterGrade II*
- 90 m12 and 13, Upper Belgrave Street Sw1Grade II
- 91 m3-11, Upper Belgrave Street Sw1Grade II*
- 96 mK6 Telephone Kiosk by Number 7Grade II
- 104 m3, Wilton Mews Sw1Grade II
- 111 m2-7 Chester StreetGrade II
- 118 m8-14, Chester Street Sw1Grade II
- 120 m15-17, Chester Street Sw1Grade II
- 124 m1-4, Hobart Place Sw1Grade II
- 126 m4-34, EATON PLACE SW1 (See details for further address information)Grade II*
- 135 m6, Hobart Place Sw1Grade II
- 141 m1 AND 2, UPPER BELGRAVE STREET SW1 (See details for further address information)Grade II
- 148 mThree Pairs of Gatepiers to Northern Garden, and GatesGrade II
- 150 m5 Groom Place and stable yardGrade II
Belgravia 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.
Article 4 direction
Article 4 Basement Development Permitted Rights Removed. 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.
Air quality management area: Westminster 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.
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 111 m away: Buckingham Palace; Heritage at risk 82 m away: Church of St Peter, Eaton Square, Westminster; Inside the City of Westminster built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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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About Plota's data serviceEvery application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- SW1X 7AF
- Received
- 27 Feb 2026
- Validated
- 27 Feb 2026
- Ward
- Knightsbridge & Belgravia
- Case officer
- Show
- Target decision
- 24 Apr 2026
- Decision
- Application Permitted
- Decision date
- 5 Aug 2026
- Applicant
- Show
How this decision compares
Decided in 159 days from validation, 104 days slower than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.
This one159d
Council55d
UK55d
56%decided within 8 weeks
88%approved
1,673decided in the last year
Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
1comment received
1 neutral
8 neighbours consulted · Last counted 11 Aug 2026
Consultation & key dates
- Alt. reference
- PP-14741870
- Env. assessment
- No
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Within ~100m
Nearby activity
2025
13 Upper Belgrave Street London SW1X 8BA
Installation of fan coil units within concealed joinery and an external condenser on the…
2025
13 Upper Belgrave Street London SW1X 8BA
Installation of fan coil units within concealed joinery and an external condenser on the…
2025
14 Wilton Street London SW1X 7AF
Alterations including infill extensions at basement and ground floor to the rear of premi…
2025
14 Wilton Street London SW1X 7AF
Alterations including infill extensions at basement and ground floor to the rear of premi…
2025
Approved
St Peters Church Eaton Square London SW1W 0HQ
Request to bring the whole building under Faculty Jurisdiction.
2025
Approved
13 Upper Belgrave Street London SW1X 8BA
Internal alterations at first and mezzanine floor levels.
2025
Withdrawn
23 Chester Street London SW1X 7BL
Installation of new lift shaft up the rear elevation of the building.
2025
Withdrawn
23 Chester Street London SW1X 7BL
Installation of new lift shaft up the rear elevation of the building.
2025
40 Grosvenor Place London SW1X 7HJ
Works at lower ground floor including the replacement of glass with louvre in one window…
2025
Approved
3 Wilton Street London SW1X 7AF
Alterations to basement and ground floors including conversion of lounge to a bedroom and…
2025
40 Grosvenor Place London SW1X 7HJ
Works at lower ground floor including excavation works for extension of lift pit and crea…
2025
Flat 3 6 Upper Belgrave Street London SW1X 8BD
Internal Alterations.
2025
2 Wilton Street London SW1X 7AF
Installation of security bars to front windows of basement and ground floors. (Linked to…
2025
2 Wilton Street London SW1X 7AF
Installation of security bars to front windows of basement and ground floors. (Linked to…
2025
Flat 3 6 Upper Belgrave Street London SW1X 8BD
Replacement of a window with timber French doors with new balcony at rear third floor lev…
2025
Flat 3 6 Upper Belgrave Street London SW1X 8BD
Replacement of a window with timber French doors with new balcony at rear third floor lev…
2025
Approved
11 Wilton Street London SW1X 7AF
1 x Bay: crown reduce by up to 1.5m on all aspects, retaining sufficient furnishing growt…
2025
Approved
13 Upper Belgrave Street London SW1X 8BA
Installation of a condenser on the roof of the property and replacement glazing in existi…
2025
Approved
40 Grosvenor Place London SW1X 7HJ
Works at lower ground floor including excavation works for extension of lift pit and crea…
2025
Approved
13 Upper Belgrave Street London SW1X 8BA
Internal layout alterations to the master suite, and the installation of a chimney breast…
2019
Approved
16A Wilton Street London SW1X 7AG
Internal alterations to lower ground floor including the removal of partitions.
2019
Approved
16 Little Chester Street London SW1X 7AP
Lowering of the finished floor level of the lower ground floor.
2019
Approved
Ground Floor South East 33 Grosvenor Place London SW1X 7HY
Confirmation that use of part first floor as an outpatient clinic is ancillary to the pri…
2018
Approved
Flat B 7 - 8 Upper Belgrave Street London SW1X 8BD
Installation of air conditioning unit and acoustic screen at roof level in connection wit…
2019
Refused
Flat B 7-8 Upper Belgrave Street London SW1X 8BD
Installation of air conditioning unit and acoustic screen at roof level and associated in…
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 statistics
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
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
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6 Wilton Street London SW1X 7AF
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