21 Stafford Place London SW1E 6NP Data via plota.co.uk

26/06268/FULL - Full Planning Permission Application Pending
Admin / procedural

Proposal

Variation of Condition 1 of planning permission dated 17 April 2026 (RN 25/08897/FULL) for the erection of a mansard roof extension; Namely, to allow the addition of seven rooflights within the flat roof. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
14 Sept 2026
Decision
Expected by 9 Nov 2026

This application is under consideration - no decision has been issued yet. A decision is expected by 9 Nov 2026. Comments are open until 28 Oct 2026.

Comment on this application ↗

Documents 14

Statements & assessments 2

PDF DESIGN STATEMENT (S73 MA) Design and Access Statement · 14 Sept 2026 View ↗ PDF FORM 4-FIRE STATEMENT EXCEPTION-SIGNED-SW1E 6NP - (S73 MA) Background Papers · 14 Sept 2026 View ↗

Plans & drawings 8

PDF A-105B-P6-PROPOSED 2-F AND ROOF PLANS OPTION 2 Drawing · 14 Sept 2026 View ↗ PDF A-104-P2-PROPOSED G-F AND 1-F PLANS Drawing · 14 Sept 2026 View ↗ PDF A-102-P2-EXISTING G-F AND 1-F PLANS Drawing · 14 Sept 2026 View ↗ PDF A-103-P2-EXISTING ROOF PLAN Drawing · 14 Sept 2026 View ↗ PDF A-100-P2-EXISTING SITE PLAN Drawing · 14 Sept 2026 View ↗ PDF A-101-P4-PROPOSED SITE PLAN Drawing · 14 Sept 2026 View ↗ PDF A-108-P5-PROPOSED WEST AND NORTH ELEVATIONS Drawing · 14 Sept 2026 View ↗ PDF A-106-P3-EXISTING WEST AND NORTH ELEVATIONS Drawing · 14 Sept 2026 View ↗

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 14 Sept 2026 View ↗ PDF FEECALCULATION Background Papers · 14 Sept 2026 View ↗

Other documents 2

PDF RECEIPT OF APPLICATION Other · 22 Sept 2026 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 14 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 10

Grade II listed: 14-20, Stafford Place Sw1
List entry 1236634 · 13 m away · 16 more listed buildings within 150 m (3 Grade I, 2 Grade II*, 11 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 16 with distances
Historic England ↗
Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Birdcage Walk 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 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.
Archaeological priority area: City of Westminster APA 3.2
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: 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.
Council record ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Central activities zone
The core of central London in the London Plan.
Offices, culture and the other strategic functions of the centre take priority over new housing here.
Registered park or garden 71 m away: Buckingham Palace
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Also on the record
Inside the City of Westminster built-up area.
Not affected
Not green belt · No scheduled monument at the site

Checked on 23 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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Important details

Council
Westminster
Application type
Full Planning Permission Application
Postcode
SW1E 6NP
Received
14 Sept 2026
Validated
14 Sept 2026
Ward
St James's
Case officer
Show
Target decision
9 Nov 2026
Applicant
Show
Agent
HK HOME ARCHITECTS AND CONSULTANTS LTD

Public comments

No public comments yet.

3 neighbours consulted · Last counted 1 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15133277
Comments by
28 Oct 2026
Site or press notice
7 Oct 2026
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 Approved
20 Buckingham Gate London SW1E 6LB
Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus to a Listed Bu…
25/06215/TELNOT
2025
63 Catherine Place London SW1E 6DY
Use of the building as four flats (Class C3) and alterations to lower ground floor front…
25/02939/FULL
2025
55 Catherine Place London SW1E 6DY
Use of first floor as commercial/office use. Installation of a flag pole between the firs…
25/01307/FULL
2024
14 Buckingham Place London SW1E 6HX
Erection of mansard roof extension including concealed terrace to extend exsting single f…
24/08828/FULL
2024
4 - 5 Buckingham Gate London SW1E 6JP
Use of the Building as an Embassy (sui generis) and associated external and internal alte…
24/06734/FULL
2024
4 - 5 Buckingham Gate London SW1E 6JP
Use of the Building as an Embassy (sui generis) and associated external and internal alte…
24/06735/LBC
2024 Approved
3 Buckingham Mews London SW1E 6NR
Erection of new mansard roof extension at front of building; installation of plant within…
24/00419/FULL
2023 Approved
Buckingham Palace The Mall London SW1A 1AA
Display of two non-illuminated fascia signs measuring approximately 4.7m x 0.15m and 0.87…
23/08854/ADV
2023 Approved
10 Buckingham Gate London SW1E 6LA
Repair works to the external elevations and the roof, including paint removal, works to t…
23/03837/FULL
2023 Approved
1 Palace Street And 1 - 3 Buckingham Gate London SW1E 6JP
Removal and replacement of existing masonry paint and defective areas of stucco render an…
23/05763/LBC
2023 Approved
6 Buckingham Mews London SW1E 6NR
Variation of Condition 1 of planning permission dated 12 December 2022 (RN: 22/03987/FULL…
23/04870/FULL
2023 Approved
16 Buckingham Gate London SW1E 6LB
Alterations and repairs to roof.
23/04341/LBC
2023
Phoenix 14 Palace Street London SW1E 5JA
Use of an area of the public highway measuring 9 m x 2.8 m for the placing of 3 tables an…
23/04896/TCH
2023 Approved
16 Stafford Place London SW1E 6NP
1x magnolia (T1, rear): crown reduce to the previous reduction points by up to 2 m
23/03174/TCA
2023 Refused
13 Catherine Place London SW1E 6DX
Installation of an air conditioning unit within an acoustic enclosure at roof level.
23/01134/FULL
2023 Approved
Flat 8 16 Catherine Place London SW1E 6HF
Rooftop external condenser unit within acoustic enclosure.
23/01617/FULL
2023 Approved
4 - 5 Buckingham Gate London SW1E 6JP
External alterations including installation of new plant equipment and associated acousti…
23/00219/LBC
2023 Approved
4 - 5 Buckingham Gate London SW1E 6JP
External alterations including installation of new plant equipment and associated acousti…
23/00218/FULL
2022 Approved
Flat 8 16 Catherine Place London SW1E 6HF
Replacement of existing roof access structure with new roof structure (Flat 8).
22/07667/FULL
2021 Approved
18 Stafford Place London SW1E 6NP
Variation of condition 1 and removal of condition 3 of planning permission dated 28 March…
21/04365/FULL
2016 Approved
The Other Palace 12 Palace Street London SW1E 5JA
Internally (halo) illuminated fascia sign to east elevation, measuring 1.6m x 5.24m; One…
16/09631/ADV
2016 Approved
21 Buckingham Gate London SW1E 6LS
Erection of a visual screen within courtyard at lower ground floor level; bricking up of…
16/01273/FULL
2016 Withdrawn
22 Buckingham Gate London SW1E 6PB
Variation of Condition 1 of listed building consent dated 18 April 2016 (RN: 16/02037/LBC…
16/09065/LBC
2016 Withdrawn
22 Buckingham Gate London SW1E 6PB
Variation of Condition 1 of planning permission dated 18 April 2016 (RN: 16/01495/FULL) f…
16/09062/FULL
2016 Withdrawn
10 Buckingham Place London SW1E 6HX
Conversion of building from B1 offices to a single residential dwelling.
16/08538/CLOPUD
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
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use