Skip to content
PlanIndex Get alerts
Menu

Planning application

9 Little Chester Street London SW1X 7AL

Awaiting decision Westminster 26/00916/ADFULL Approval of Details (Full PP)

Works: Loft or dormer Windows or glazing

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

Proposal

Details plans and elevations of all new external doors, windows and rooflights pursuant to condition 5 of planning permission dated 31 July 2024 (RN: 23/07308/FULL)

As published by the council, reference 26/00916/ADFULL

Application record

Reference
26/00916/ADFULL
Type
Approval of Details (Full PP)
Status
Pending
Received
13 Feb 2026
Validated
13 Feb 2026
Ward
Knightsbridge & Belgravia
Postcode
SW1X 7AL

Timeline

Dates from the published record

  1. 13 Feb 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 10 April 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.

Who's behind it

Company information only, from the register and Companies House

Studio Three Architects Ltd Agent, an architecture practice registered in St Helens

Dissolved · incorporated 2003 · St Helens

8 applications on PlanIndex · across 4 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 record

Documents

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

5 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

  • 23 Chester Street London SW1X 7BL

    25/06250/LBC Submitted 2 Sep 2025 50 yards away

    Installation of new lift shaft up the rear elevation of the building.

    Withdrawn Heritage and listed buildings 11 docs

  • 23 Chester Street London SW1X 7BL

    25/06021/FULL Submitted 22 Aug 2025 50 yards away

    Installation of new lift shaft up the rear elevation of the building.

    Withdrawn Full applications 15 docs

  • 24 Chester Street London SW1X 7BL

    26/00077/FULL Submitted 7 Jan 2026 50 yards away

    Erection of two storey rear extension at ground and lower ground floor level and associated works.

    Granted Full applications Extension 41 docs

  • 24 Chester Street London SW1X 7BL

    26/00078/LBC Submitted 7 Jan 2026 50 yards away

    Erection of two storey rear extension at ground and lower ground floor level and associated works.

    Granted Heritage and listed buildings Extension 34 docs

  • 13 Wilton Street London SW1X 7AF

    22/04803/ADLBC Submitted 15 Jul 2022 50 yards away

    Detailed assessment of the causes and effects of the damage at the balcony and a detailed written specification of structural repairs proposed at the balcony pursuant to condition 3(c) of listed building permission dated 26 March 2018 (18/01355/LBC).

    Granted Conditions 6 docs

  • 1 Wilton Mews London SW1X 7AS

    25/02404/CLEUD Submitted 8 Apr 2025 50 yards away

    86% historically approved · decision due ~3 Jun

    Placement of two planters on pavement directly adjoining 1 Wilton Mews.

    Withdrawn Lawful development

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