23 Ponsonby Place London SW1P 4PS Data via plota.co.uk

26/05350/FULL - Full Planning Permission Application Approved
Extensions & alterations

Proposal

Replacement of all front and rear windows, replacement of fascia, soffits and rainwater goods, and repairs to the brickwork and rendered facades. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
6 Aug 2026
✓
Approved
22 Oct 2026

Approved on 22 Oct 2026 · Delegated Decision · Last checked 23 Oct 2026

Documents 19

Decision & officer reports 2

PDF GRANT OF FULL PP [PE] Decision Notice · 22 Oct 2026 View ↗ PDF DELEGATED REPORT Report · 22 Oct 2026 View ↗

Statements & assessments 2

PDF SUSTAINABILITY STATEMENT Background Papers · 12 Aug 2026 View ↗ PDF HERITAGE STATEMENT Design and Access Statement · 6 Aug 2026 View ↗

Plans & drawings 8

PDF LOCATION PLAN Location Plan · 6 Aug 2026 View ↗ PDF EXISTING PLANS AND ELEVATIONS Drawing · 6 Aug 2026 View ↗ PDF EXISTING WINDOW SCHEDULE Drawing · 6 Aug 2026 View ↗ PDF PROPOSED PLANS AND ELEVATIONS Drawing · 6 Aug 2026 View ↗ PDF PROPOSED WINDOW SCHEDULE Drawing · 6 Aug 2026 View ↗ PDF 500 SITE PLAN Location Plan · 6 Aug 2026 View ↗ PDF EXISTING _ PROPOSED SLIMLITE TIMBER SAS Drawing · 6 Aug 2026 View ↗ PDF EXISTING _ PROPOSED WINDOWS TIMBER CASE Drawing · 6 Aug 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 6 Aug 2026 View ↗

Consultation & comments 1

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 23 Sept 2026 View ↗

Other documents 5

PDF CNSLT-LA SOCIETY Background Papers · 23 Sept 2026 View ↗ PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 23 Sept 2026 View ↗ PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 22 Sept 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 11 Aug 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 11 Aug 2026 View ↗

All documents on the council site ↗

Site constraints 10

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 ↗
Millbank 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.
National infrastructure project: Thames Tideway Tunnel
The site is inside 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, 39 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 ↗
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 ↗
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.
16 listed buildings within 150 m
Nearest: Millbank Barracks South West Range, Royal Army Medical College, Grade II, 30 m away · 1 Grade II*, 14 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 16 with distances
Historic England ↗
Also on the record
Inside the City of Westminster built-up area; Public transport access: PTAL 6a (excellent), TfL 2023, for the 100 m square.
Not affected
Not green belt · No scheduled monument at the site

Checked on 6 October 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.

Building

Floor area126 m² (1,356 sq ft)
Energy ratingD (56 out of 100)
PropertyMid-terrace house, 5 habitable rooms
BuiltPre-1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in April 2009, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Westminster
Application type
Full Planning Permission Application
Postcode
SW1P 4PS
Received
6 Aug 2026
Validated
6 Aug 2026
Ward
Vincent Square
Case officer
Show
Target decision
22 Oct 2026
Decision
Application Permitted
Decision date
22 Oct 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Bluelime

How this decision compares

Decided in 77 days from validation, 22 days slower than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.

56%decided within 8 weeks
88%approved
1,688decided in the last year

Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

5 neighbours consulted · Last counted 23 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15130070
Planning Portal ref
PP-15130070
Comments by
21 Oct 2026
Site or press notice
30 Sept 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
60 Millbank London SW1P 4RW
T2. Chinese Privet Rear Garden of 60, Millbank: Fell in section to ground level. Improved…
25/08262/TCA
2025
48 Millbank London SW1P 4RL
T1. Gingko Rear Communal Area: Reduce low lateral spreading branches which extend over ne…
25/08260/TCA
2025
Flat A 20 Ponsonby Place London SW1P 4PT
1 x Tree of Heavan (rear): Crown reduce height and sides by 3m. Thin 15%. Deadwood. Lift…
25/07799/TCA
2025 Approved
1 Bessborough Gardens London SW1V 2JQ
Installation of new double glazed sash windows including creation of new window openings…
25/03669/FULL
2025
6 Ponsonby Terrace London SW1P 4QA
Removal of an existing glazed door to the rear elevation, enlargement of the opening, and…
25/06563/FULL
2025 Approved
Chelsea College Of Art And Design Millbank London SW1P 4RJ
Refurbishment and repair works to the Cookhouse (south east of Block C).
25/04252/LBC
2025 Approved
Chelsea College Of Art And Design Millbank London SW1P 4RJ
Refurbishment and remedial works proposed to the 'Post Room' (northwest of Block C) consi…
25/04261/LBC
2025 Approved
1 Bessborough Gardens London SW1V 2JQ
Works to Street Lamp at 1 Bessborough Gardens, Tachbrook Estate, Milbank, London SW1V 2JQ…
25/05566/TELNOT
2025 Approved
48 Millbank London SW1P 4RL
T1. Katsura Prune back x 2 roots as indicated in the submitted pictures. (Fig 1. & Fig 2).
25/01229/TCA
2025
Chelsea College Of Art And Design Millbank London SW1P 4RJ
Refurbishment and repair to the facades facing the Atterbury Street courtyard.
25/01259/LBC
2025
57 Ponsonby Place London SW1P 4PP
Erection of side infill at the lower ground floor, side-rear extension, including a terra…
25/00465/FULL
2024
1 Ponsonby Terrace London SW1P 4PZ
Erection of a loft extension with rooflights.
24/05947/FULL
2024
Flat 1 33 Ponsonby Terrace London SW1P 4PZ
Replacement of two French doors with double glazed timber French doors at front first flo…
24/05935/FULL
2024
16 John Islip Street London SW1P 4JU
Installation of a temporary structure as part of the London Design Festival at footprint…
24/05594/FULL
2024 Approved
16 John Islip Street London SW1P 4JU
Repair works to existing balcony walkways.
24/03799/LBC
2024 Approved
Morpeth Arms 58 Millbank London SW1P 4RW
Variation of Condition 5 of planning permission dated 9th May 2022 (RN:22/01690/TCH) for…
24/01796/FULL
2024 Approved
60 Millbank London SW1P 4RW
1 x privet (leaning tree, most central position in garden): crown reduce to approximately…
24/01550/TCA
2024 Approved
48 Millbank London SW1P 4RL
1 x hornbeam: remove lowest two lateral limbs growing south over lawn, pruning back to ma…
24/01377/TCA
2023 Approved
6 Ponsonby Terrace London SW1P 4QA
Replacement of existing hipped roof with a new dual pitched slate roof, including raising…
23/08755/FULL
2024
61 Ponsonby Place London SW1P 4PP
Tree location - rear gardenT1 - Approx. H17 S8 45DBH SycamoreCrown reduce height by 8-10m…
24/01388/TCA
2016 Approved
16 John Islip Street London SW1P 4JU
Display of non illuminated banner sign measuring 6m X 1m underneath 'Sky Platform' for a…
16/08479/ADV
2016 Approved
Flat 7 48 Millbank London SW1P 4RL
Internal alterations to Flat 7 at second floor level including installation of secondary…
16/04748/LBC
2016 Approved
16 John Islip Street London SW1P 4JU
Erection of urban sculpture pavilion for a temporary period from 22nd August to 21st Octo…
16/06660/FULL
2016 Refused
53 Millbank London SW1P 4RL
Display of a double-sided advertisement panel consisting of 1 LED digital screen and 1 st…
16/03232/ADV
2016 Approved
Morpeth Arms 58 Millbank London SW1P 4RL
Use of an area of public highway (Millbank frontage) measuring 7.5m x 1.7m for the placin…
16/01778/TCH
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

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.