Planning Atlas
Planning AtlasWestminsterMarylebone ward25/08713/FULL
Planning application · Westminster

25/08713/FULL.

3 Great Cumberland Mews London W1H 7DZ

Full / Other Planning at 3 Great Cumberland Mews London W1H 7DZ, received 28 Nov 2025 — approved on 16 Apr 2026 (delegated, Christina Sriramula).

WestminsterMaryleboneW1H 7DZ25/08713/FULL
ApprovedRefusedOther
At a glance · this applicationWestminster profile →
Approved
Outcome
16 Apr 2026
20 wks
Decision time
12 wks over the 8-week target
Conditions
not captured
13
Documents
13 linked
0
Objections
0 in support
No
Appeal
none recorded
Record from the Westminster planning register as captured; documents link to the council's own files. Nearby applications are context, not part of this application.
Application

What is it?

Conversion of the existing ground-floor garage into habitable residential accommodation; enlargement of the rear window in the existing utility room; and installation of air conditioning unit at rear ground floor patio.

Reference
25/08713/FULL
Type
Full Planning Permission Application
Agent / consultant
Postcode
W1H 7DZ
Received
28 Nov 2025
Validated
15 Jan 2026
Target date
12 Mar 2026
Decision date
16 Apr 2026
Decision route
Delegated (officer)
Status
Decided
Reference
25/08713/FULL
Type
Full Planning Permission Application
Show all 16 rows
Agent / consultant
Postcode
W1H 7DZ
Received
28 Nov 2025
Validated
15 Jan 2026
Target date
12 Mar 2026
Decision date
16 Apr 2026
Decision route
Delegated (officer)
Status
Decided
Documents

What was filed?

Document
Published
View
GRANT OF FULL PP [PE]
16 Apr 2026
DELEGATED REPORT
16 Apr 2026
REVISED REAR ELEVATION
16 Feb 2026
REVISED PROPOSED GROUND FLOOR PLAN
16 Feb 2026
ACK-GENERAL LETTER (G/P/C)
16 Feb 2026
CNSLT-LA SOCIETY
16 Feb 2026
ECNSLT-INTERNAL CONSULTS
16 Feb 2026
SITE NOTICE 21 OR 28 DAYS IF T&C APPL.
16 Feb 2026
NEIGHBOUR NOTIFICATION LETTER (21D)
16 Feb 2026
VA(PL)-100-GROUND FLOOR EXISTING
28 Nov 2025
GRANT OF FULL PP [PE]
16 Apr 2026
DELEGATED REPORT
16 Apr 2026
REVISED REAR ELEVATION
16 Feb 2026
Show all 10 rows
REVISED PROPOSED GROUND FLOOR PLAN
16 Feb 2026
ACK-GENERAL LETTER (G/P/C)
16 Feb 2026
CNSLT-LA SOCIETY
16 Feb 2026
ECNSLT-INTERNAL CONSULTS
16 Feb 2026
SITE NOTICE 21 OR 28 DAYS IF T&C APPL.
16 Feb 2026
NEIGHBOUR NOTIFICATION LETTER (21D)
16 Feb 2026
VA(PL)-100-GROUND FLOOR EXISTING
28 Nov 2025

Documents open on the Westminster portal (the portal needs its documents tab opened first — the link handles that). View the application page ↗

Decision

What happened?

Approved on 16 Apr 2026, delegated decision by Christina Sriramula — 20 weeks from submission (12 over the 8-week target).

Timeline

Date
Event
28 Nov 2025
Application received
15 Jan 2026
Application validated
12 Mar 2026
Statutory target date
16 Apr 2026
Delegated decision: Approved · Christina Sriramula
28 Nov 2025
Application received
15 Jan 2026
Application validated
12 Mar 2026
Statutory target date
Show all 4 rows
16 Apr 2026
Delegated decision: Approved · Christina Sriramula

Public response

Measure
Count
Objections
0
In support
0
Total comments
0
Objections
0
In support
0
Total comments
0
People

Who is involved?

Name
Role
Applicant — the party who applied, not necessarily the owner
Agent · consultant profile
Case officer — delegated decision
Applicant — the party who applied, not necessarily the owner
Agent · consultant profile
Case officer — delegated decision
Place

What affects it?

Context around the site — not part of this application. Designations over the site: use the map's designations filter (conservation areas, listed buildings, Article 4, flood risk …). Decisions within 250 metres of the site are listed below — context, not this application.

Other applications within 250 metres (context — nearby, not this application)

No other geocoded decision is recorded within 250 metres.