Planning application
3 Wilton Row London SW1X 7NR
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Internal enlargement of existing lower ground floor, including lowering the lower ground floor level.
As published by the council, reference 25/06783/FULL
Application record
- Reference
- 25/06783/FULL
- Type
- Full Planning Permission Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 22 Sep 2025
- Validated
- 22 Sep 2025
- Decided
- 19 Feb 2026
- Ward
- Knightsbridge & Belgravia
- Decision by
- Delegated Decision
- Postcode
- SW1X 7NR
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2025: 2 approved, 0 refused.
-
25/06784/FULL Granted
3 Wilton Row London SW1X 7NR
Variation of condition 1 of planning permission dated 01 October 2024 (RN24/03484/FULL) for excavation at lower ground floor level to increase internal floor to ceiling height, lowering the garden level by 300mm and alterations to existing lightwell. NAMELY, internal alterations and lowering the level at lower ground floor level.
Timeline
Dates from the published record
-
22 Sep 2025
Received by Westminster
-
19 Feb 2026
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Cranbrook Basement Design and Construction Ltd Agent, a design practice registered in Ilford
Active · incorporated 2015 · Ilford
10 applications on PlanIndex · across 3 councils
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
23 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Westminster granted permission on 19 February 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
3 Wilton Row London SW1X 7NR
Variation of condition 1 of planning permission dated 01 October 2024 (RN24/03484/FULL) for excavation at lower ground floor level to increase internal floor to ceiling height, lowering the garden level by 300mm and alterations to existing lightwell. NAMELY, internal alterations and lowering the level at lower ground floor level.
Granted Full applications 15 docs -
17 Grosvenor Crescent London SW1X 7EE
Replacement of basement entrance door and fanlight with bullet-resistant door and glazing; installation of a gate within the existing basement stair enclosure following the removal of a section of handrail; replacement of basement level bullet-resistant window and emergency exit door; internal alterations including replacement of security counters, glazed security screens and associated partitions at ground and basement levels; refurbishment works including alterations to finishes and sanitary accommodation; replacement of furniture and fittings; and replacement of internal fire doors. (Linked with 26/03744/FULL)
Decided Heritage and listed buildings Windows or glazing 6 docs -
17 Grosvenor Crescent London SW1X 7EE
88% historically approved · decision due ~3 Aug
Replacement of basement entrance door and fanlight with bullet-resistant door and glazing; installation of a gate within the existing basement stair enclosure following the removal of a section of handrail; replacement of basement level bullet-resistant window and emergency exit door. (Linked with 26/03745/LBC)
Decided Full applications Windows or glazing 8 docs -
31 Wilton Crescent London SW1X 8RX
90% historically approved · decision due ~20 Apr
Reinstatement of front area railings and Portland stone plinth. (Linked to 26/01139/FULL)
Awaiting decision Heritage and listed buildings 16 docs -
31 Wilton Crescent London SW1X 8RX
88% historically approved · decision due ~20 Apr
Reinstatement of front area railings and Portland stone plinth. (Linked to 26/01140/LBC)
Awaiting decision Full applications 19 docs -
26 Wilton Row London SW1X 7NS
88% historically approved · decision due ~13 Nov
Installation of a glazed roof over the existing rear (internal) light well and a glazed platform to extend the existing balconies within the lightwell at ground floor level.
Awaiting decision Full applications Windows or glazing
Other full applications
In Westminster
-
26/06234/FULL Decided
40 Grosvenor Place London SW1X 7HJ
Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))
-
26/06015/FULL Decided
129 Saltram Crescent London W9 3JT
Erection of a two-storey rear extension.
-
26/07382/FULL Awaiting decision
90 Gloucester Place London W1U 6HS
Use of the building as an embassy (sui generis)
-
26/07363/FULL Awaiting decision
36 Kilravock Street London W10 4HX
Demolition of existing rear/side extension and construction of a new extension together with new glazing and doors, and changing the existing rooflights to the rear roof slope with new rooflights.
-
26/07371/FULL Awaiting decision
8A Randolph Road London W9 1AN
Amalgamation of two residential units with internal refurbishment and reconfiguration. (Linked with 26/07372/LBC)