74 Cumberland Street London SW1V 4NA Data via plota.co.uk

25/08132/FULL - Full Planning Permission Application Approved
Extensions & alterations

Proposal

Replacement of existing windows with new heritage timber box sash windows Data via plota.co.uk

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View original council record ↗

Application progress

✓
Received
7 Nov 2025
✓
Validated
1 Apr 2026
✓
Approved
21 Jul 2026

Approved on 21 Jul 2026 · Complex Delegated Decision · Last checked 21 Jul 2026

Documents 27

Decision & officer reports 2

PDF GRANT OF FULL PP [PE] Decision Notice · 21 Jul 2026 View ↗ PDF DELEGATED REPORT Report · 21 Jul 2026 View ↗

Statements & assessments 3

PDF SUSTAINABLE DESIGN STATEMENT Other · 1 Apr 2026 View ↗ PDF HERITAGE STATEMENT Heritage Statement · 8 Dec 2025 View ↗ PDF SURVEY SHEET GLOUCESTER CUMBERLAND Background Papers · 7 Nov 2025 View ↗

Plans & drawings 10

PDF SITE LOCATION PLAN Location Plan · 7 Nov 2025 View ↗ PDF SITE BLOCK PLAN Drawing · 7 Nov 2025 View ↗ PDF EXISTING PLANS Drawing · 7 Nov 2025 View ↗ PDF EXISTING ELEVATIONS Drawing · 7 Nov 2025 View ↗ PDF ELEVATION (REAR) - EXISTING INCLUDED IN ELEVATION (FRONT) - EXISTING Superseded document · 7 Nov 2025 View ↗ PDF ELEVATION (SIDE) - EXISTING INCLUDED IN ELEVATION (FRONT) - EXISTING Superseded document · 7 Nov 2025 View ↗ PDF PROPOSED ELEVATIONS Drawing · 7 Nov 2025 View ↗ PDF ELEVATION (REAR) - PROPOSED INCLUDED IN ELEVATION (FRONT) - PROPOSED Superseded document · 7 Nov 2025 View ↗ PDF ELEVATION (SIDE) - PROPOSED INCLUDED IN ELEVATION (FRONT) - PROPOSED Superseded document · 7 Nov 2025 View ↗ PDF EQUANS PROPOSED WINDOW DRAWINGS Drawing · 7 Nov 2025 View ↗

Application forms 1

PDF APPLICATION FORM REDACTED Application Form · 7 Nov 2025 View ↗

Consultation & comments 2

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 13 Apr 2026 View ↗ PDF INVALID CHASER LETTER (14 DAY RESPONSE) Background Papers · 5 Mar 2026 View ↗

Other documents 9

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 13 Apr 2026 View ↗ PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 13 Apr 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 13 Apr 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 13 Apr 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 13 Apr 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 19 Mar 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 14 Nov 2025 View ↗ PDF 1ST INVALID LETTER Background Papers · 14 Nov 2025 View ↗ PDF ATTACHMENT SUMMARY Background Papers · 7 Nov 2025 View ↗

All documents on the council site ↗

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26/03969/FULL - 16 Jun 2026

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26/01637/FULL - 13 Mar 2026

Nearby new applications

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26/04924/FULL - 23 Jul 2026

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Upgrade of Telefonica telecommunications equipment consisting of the replacement...

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7P Warwick Square London SW1V 2AA

Internal alterations and refurbishment of the existing second floor flat, includ...

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First Floor 54 Warwick Square London SW1V 2AJ

Details of roof terrace railings, stair, planter, external windows and doors det...

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26/04848/ADLBC - 20 Jul 2026

Important details

Council
Westminster
Application type
Full Planning Permission Application
Postcode
SW1V 4NA
Received
7 Nov 2025
Validated
1 Apr 2026
Ward
Pimlico South
Case officer
Show
Target decision
27 May 2026
Decision
Application Permitted
Decision date
21 Jul 2026
Decision level
Complex Delegated Decision
Agent
Retrofit Design Services (UK)

Consultation & key dates

Alt. reference
PP-14463298
Press notice
22 Apr 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
Flat E 90 Gloucester Street London SW1V 4ED
Replacement of window with timber French doors to front basement lightwell.
25/04358/FULL
2024
137 Lupus Street London SW1V 3HE
Replacement of door and window units on the office space on the ground and first floor.
24/07993/COFUL
2024
Selden House Churchill Gardens Estate London SW1V 3DG
Installation of a new perimeter roof upstand, to be raised by 200mm, to accommodate new i…
24/05397/FULL
2024
Gifford House Churchill Gardens Estate London SW1V 3DQ
Installation of a new perimeter roof upstand, to be raised by 200mm, to accommodate new i…
24/05399/FULL
2024
Langdale House Churchill Gardens Estate London SW1V 3DH
Installation of a new perimeter roof upstand, to be raised by 200mm, to accommodate new i…
24/05398/FULL
2023 Refused
90 Gloucester Street London SW1V 4ED
Replacement sash windows.
23/08808/FULL
2023 Withdrawn
56 Cumberland Street London SW1V 4LZ
Installation of an air conditioning condenser unit and associated acoustic screening at r…
23/07185/FULL
2023 Approved
15 Winchester Street London SW1V 4PA
Replacement of the existing stone staircase with a metal framed staircase and railing wit…
23/06083/FULL
2023
Ground Floor 74 - 74B Lupus Street London SW1V 3EB
Continued use of ground floor as a Centre for learning (Class F1).
23/04229/CLOPUD
2023 Approved
48 Sussex Street London SW1V 4RH
Replacement of sash windows to front elevation (at lower ground, ground, second and third…
23/02441/FULL
2023 Approved
65 Gloucester Street London SW1V 4DZ
Installation of a black metal handrail to front entrance steps.
23/01177/FULL
2022 Withdrawn
74 - 74B Lupus Street London SW1V 3EL
Use of ground floor as non residential education (Class F1).
22/04811/FULL
2022
75 Sutherland Street London SW1V 4JY
Alteration to front elevation of the building to form a downpipe.
22/05509/FULL
2022 Withdrawn
Flat A 54 Cumberland Street London SW1V 4LZ
Rear Garden - Left Hand SideG1 - Mixed ShrubsCut back overhang from neighbouring gardens…
22/04086/TCA
2022 Approved
119 Lupus Street London SW1V 3EN
Installation of a new shopfront and alterations to rear including landing and handrail to…
22/00522/FULL
2022 Withdrawn
119 Lupus Street London SW1V 3EN
Display of internally illuminated other sign measuring 2.2m X 2.6m
22/00524/ADV
2022 Withdrawn
119 Lupus Street London SW1V 3EN
Installation of a new shopfront, demolition and rebuilding of internal partitions and sta…
22/00523/LBC
2020 Approved
47 Cumberland Street London SW1V 4LY
T1 1 x hawthorn: reduce back from neighbouring property by approx. 1.5m, remove dead and…
20/05352/TCA
2020 Approved
75 Cumberland Street London SW1V 4NB
Rear garden. 1 x purple leaf plum (T1): reduce all round by up 2m to suitable growth poin…
20/04149/TCA
2019 Approved
69C Gloucester Street London SW1V 4EA
Installation of new windows and a replacement door within the lightwell, in connection wi…
19/10035/FULL
2016 Approved
8A Winchester Street London SW1V 4ND
Erection of a rear extension to lower-ground floor flat.
16/05440/FULL
2016 Approved
8A Winchester Street London SW1V 4ND
Enlargement and replacement of window on front elevation at lower ground floor level.
16/02858/FULL
2016 Withdrawn
8A Winchester Street London SW1V 4ND
Creation of a rear extension at lower ground floor level.
16/02589/FULL
2016 Approved
Flat 1 64 Cumberland Street London SW1V 4LZ
1 x Magnolia grandiflora: fell
16/00947/TCA
2016 Approved
16 Winchester Street London SW1V 4NE
Reconstruction and extension of closet wing at rear second floor level.
16/00279/FULL
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
Source: MHCLG planning statistics · See full council rankings