5 Ponsonby Terrace London SW1P 4PZ Data via plota.co.uk

26/04175/FULL - Full Planning Permission Application Approved
Extensions & alterations

Proposal

Replacement of all existing front and rear windows with double glazed timber sash and casements; repairs to fascia, sofit, brickwork, render and rainwater pipes. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
24 Jun 2026
✓
Validated
30 Jul 2026
✓
Approved
3 Sept 2026

Approved on 3 Sept 2026 · Delegated Decision · Last checked 25 Sept 2026

Documents 22

Decision & officer reports 2

PDF GRANT OF FULL PP [PE] Decision Notice · 3 Sept 2026 View ↗ PDF DELEGATED REPORT Report · 3 Sept 2026 View ↗

Statements & assessments 2

PDF SUSTAINABILITY STATEMENT Sustainability appraisal · 30 Jul 2026 View ↗ PDF DESIGN ACCESS AND HERITAGE STATEMENT Design and Access Statement · 24 Jun 2026 View ↗

Plans & drawings 10

PDF LOCATION PLAN Location Plan · 24 Jun 2026 View ↗ PDF SITE PLAN Drawing · 24 Jun 2026 View ↗ PDF EXISTING AND PROPOSED SLIMLITE TIMBER SASH WINDOW Drawing · 24 Jun 2026 View ↗ PDF EXISTING AND PROPOSED WINDOWS TIMBER CASEMENT DET Drawing · 24 Jun 2026 View ↗ PDF EXISTING PLANS AND ELEVATIONS Drawing · 24 Jun 2026 View ↗ PDF EXISTING WINDOWS SCHEDULE Drawing · 24 Jun 2026 View ↗ PDF PROPOSED PLANS AND ELEVATIONS Drawing · 24 Jun 2026 View ↗ PDF PROPOSED WINDOWS SCHEDULE Drawing · 24 Jun 2026 View ↗ PDF CASEMENTS COMBI 500 ( 78X45 78X52 90X45 90X52) Drawing · 24 Jun 2026 View ↗ PDF DRAWING POS W1 BOX VS. BOX WITH PUTTY Drawing · 24 Jun 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 24 Jun 2026 View ↗

Consultation & comments 1

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 5 Aug 2026 View ↗

Other documents 6

PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 5 Aug 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 5 Aug 2026 View ↗ PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 5 Aug 2026 View ↗ PDF 2ND INVALID LETTER Background Papers · 23 Jul 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 25 Jun 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 25 Jun 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, 3 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.
10 listed buildings within 150 m
Nearest: Morpeth Arms Public House, Grade II, 48 m away · 1 Grade II*, 9 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 10 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.

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Important details

Council
Westminster
Application type
Full Planning Permission Application
Postcode
SW1P 4PZ
Received
24 Jun 2026
Validated
30 Jul 2026
Ward
Vincent Square
Case officer
Show
Target decision
24 Sept 2026
Decision
Application Permitted
Decision date
3 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Bluelime

How this decision compares

Decided in 35 days from validation, 20 days faster 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.

13 neighbours consulted · Last counted 25 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15018302
Planning Portal ref
PP-15018302
Comments by
2 Sept 2026
Site or press notice
12 Aug 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
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
1 Bessborough Gardens London SW1V 2JQ
Works to Street Lamp at 1 Bessborough Gardens, Tachbrook Estate, Milbank, London SW1V 2JQ…
25/05566/TELNOT
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 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
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
2023 Approved
Flat 4 33 Ponsonby Terrace London SW1P 4PZ
Removal of conditions 3, 4 and 5 of planning permission dated 14 June 2023 (RN: 23/02589/…
23/05719/FULL
2023
1 Bessborough Gardens London SW1V 2JQ
Construction of infill extension at fourth floor to provide new office accommodation, to…
23/04155/FULL
2023 Approved
Flat 4 33 Ponsonby Terrace London SW1P 4PZ
Replacement of the second floor two sash windows on the front elevation and one sash wind…
23/02589/FULL
2022 Approved
28 Ponsonby Terrace London SW1P 4QA
Loft conversion, new conservation rooflights, alterations to the existing roof ridge, use…
22/06984/FULL
2022 Approved
60 Millbank London SW1P 4RW
1x birch (T1, rear garden): selectively prune over long branches back into the main crown…
22/05472/TCA
2022 Approved
6 Ponsonby Place London SW1P 4PT
Installation of replacement windows to the front elevation and three windows at the east…
22/00169/FULL
2022 Approved
Morpeth Arms 58 Millbank London SW1P 4RW
Use of an area of public highway (Millbank frontage) measuring 7.5m x 1.7m for the placin…
22/01690/TCH
2022 Approved
6 Ponsonby Place London SW1P 4PT
Erection of a single storey rear basement infill extension.
22/01159/FULL
2022 Approved
25 Ponsonby Terrace London SW1P 4PZ
Alterations to roof pitch and installation of four rooflights.
22/01179/FULL
2021 Refused
Bessborough Gardens London
Installation of 5G telecoms including H3G Phase 8 18m high slimline street pole c/w wrap…
21/04943/TELCOM
2017 Approved
3 Meade Mews SW1P 4EG
Use of the ground and first floor as a clinic (Class D1) including ancillary training and…
17/00276/FULL
2017 Refused
Bessborough Gardens London
Installation of a public call box.
17/01571/TELCOM
2016 Approved
Riverwalk House 157-161 Millbank London SW1V 3JN
Display of two non-illuminated hoardings each measuring 4.8m x 1.2m and 8m x 2.4m for a t…
16/09500/ADV
2016 Approved
17B Ponsonby Terrace London SW1P 4PZ
Erection of a single storey extension at the rear of the existing basement flat.
16/07782/FULL
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

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