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Planning application

50 Wilton Crescent London SW1X 8RX

Awaiting decision Westminster 25/08955/FULL Full Planning Permission Application

Works: Extension

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Erection of Georgian-style orangery on first-floor rear terrace.

As published by the council, reference 25/08955/FULL

Application record

Reference
25/08955/FULL
Type
Full Planning Permission Application
Status
Pending
Received
9 Dec 2025
Validated
9 Dec 2025
Ward
Knightsbridge & Belgravia
Postcode
SW1X 8RX

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2025: 2 approved, 0 refused.

  • 25/09226/FULL Granted

    50 Wilton Crescent London SW1X 8RX

    Demolition and rebuilding of closet wing to create lift to third floor.

    Decided 22 May 2026 Full applications
  • 25/09227/LBC Granted

    50 Wilton Crescent London SW1X 8RX

    Demolition and rebuilding of closet wing to create lift to third floor.

    Decided 22 May 2026 Heritage and listed buildings
  • 25/08956/LBC Awaiting decision

    50 Wilton Crescent London SW1X 8RX

    Erection of Georgian-style orangery on first-floor rear terrace. [Linked to 25/08955/FULL]

    Submitted 9 Dec 2025 Heritage and listed buildings

Timeline

Dates from the published record

  1. 9 Dec 2025

    Received by Westminster

  2. 20 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 3 February 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Westminster took a median of 66 days over the applications it decided in the last year.

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 25/08956/LBC Awaiting decision

    50 Wilton Crescent London SW1X 8RX

    Erection of Georgian-style orangery on first-floor rear terrace. [Linked to 25/08955/FULL]

    Submitted 9 Dec 2025 Heritage and listed buildings

Who's behind it

Company information only, from the register and Companies House

ACH Architects Ltd Agent, an architecture practice registered in London

Active · incorporated 2023 · London

4 applications on PlanIndex

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

20 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 documents

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.

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

  • 50 Wilton Crescent London SW1X 8RX

    25/09226/FULL Submitted 19 Dec 2025 50 yards away

    Demolition and rebuilding of closet wing to create lift to third floor.

    Granted Full applications Demolition 34 docs

  • 50 Wilton Crescent London SW1X 8RX

    25/09227/LBC Submitted 19 Dec 2025 50 yards away

    Demolition and rebuilding of closet wing to create lift to third floor.

    Granted Heritage and listed buildings Demolition 29 docs

  • 50 Wilton Crescent London SW1X 8RX

    25/08956/LBC Submitted 9 Dec 2025 50 yards away

    90% historically approved · decision due ~3 Feb

    Erection of Georgian-style orangery on first-floor rear terrace. [Linked to 25/08955/FULL]

    Awaiting decision Heritage and listed buildings Extension 16 docs

  • 11A Belgrave Square London SW1X 8PH

    25/09302/CLEUD Submitted 23 Dec 2025 50 yards away

    Internal and external works including demolition of partition walls, fixtures and fittings, and lightwell excavation at lower ground level (Confirmation of lawful implementation of the planning permission dated 21st September 2022 (RN: 22/01791/FULL) for excavation works to lower ground floor and basement to achieve swimming pool depth and new storey; relocation of existing mechanical ventilation plant within the existing roof void with two grilles in roof; new ventilation shaft and metal grating in the front lightwell.

    Granted Lawful development Demolition 11 docs

  • 5 Wilton Crescent London SW1X 8RN

    25/05595/ADLBC Submitted 30 Jul 2025 50 yards away

    Details of sample of brickwork pursuant to Condition 4 of listed building consent dated 01 July 2025 (RN: 25/03523/LBC).

    Refused Conditions 7 docs

  • 5 Wilton Crescent London SW1X 8RN

    25/05493/LBC Submitted 6 Aug 2025 50 yards away

    Erection of closet wing extension at rear first, second and third floor level, extension of second floor terrace to 5 Wilton Crescent, insertion of new lightwells and amendments to rooflight configuration between the main house and mews building, rear infill of mews building at first floor level, and associated works (Site includes 8 Kinnerton Street).

    Refused Heritage and listed buildings Extension Loft or dormer 33 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront with Medication Dispensing Outlet.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06294/FULL Awaiting decision

    15 Eaton Mews South London SW1W 9HP

    Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06317/FULL Awaiting decision

    124 Hamilton Terrace London NW8 9UT

    Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06273/FULL Awaiting decision

    9A Grosvenor Square London W1K 5AE

    Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

    Received 14 Sep, published by the council 22 Sep 2026 Full applications