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Planning application

12C Warrington Crescent London W9 1EL

Awaiting decision Westminster 25/07985/FULL Full Planning Permission Application

Works: Windows or glazing

Relates to 25/07986/LBC

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

Proposal

Replacement of front facade window glazing within exiting timber frames with slim line double-glazing (installing new putty). Internal alterations. (Linked with 25/07986/LBC)

As published by the council, reference 25/07985/FULL

Application record

Reference
25/07985/FULL
Type
Full Planning Permission Application
Status
Pending
Received
4 Nov 2025
Validated
6 Nov 2025
Ward
Little Venice
Postcode
W9 1EL

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2025: 1 approved, 1 refused.

  • 25/07986/LBC Awaiting decision

    12C Warrington Crescent London W9 1EL

    Replacement of front facade window glazing within exiting timber frames with slim line double-glazing (installing new putty). Internal alterations including demolition and reconfiguration of internal partitions; demolition and reconfiguration of internal stair connecting to mezzanine; demolition and reconfiguration of Mezzanine; demolition of existing joinery and fittings; and introduction of fire stopping measures to the doors, walls, ceilings. (Linked with 25/07985/FULL)

    Submitted 4 Nov 2025 Heritage and listed buildings
  • 25/05672/LBC Refused

    12C Warrington Crescent London W9 1EL

    Demolition and reconfiguration of internal partitions; demolition and reconfiguration of internal stair connecting to mezzanine; demolition and reconfiguration of Mezzanine; demolition of existing joinery and fittings; demolition and reinstatement of existing decorative features, such as timber and plaster mouldings; using the existing timber frames of the external doors and windows, replace the single glazing with slim line double-glazing; introduce, currently absent, fire stopping measures to the doors, walls, ceilings and floor; and introduction of a small brick vent in the rear facade to allow for mechanical ventilation of the bathroom. (Linked with 25/05671/FULL)

    Decided 7 Oct 2025 Heritage and listed buildings
  • 25/05671/FULL Granted

    12C Warrington Crescent London W9 1EL

    Replace the single glazing with slim line double-glazing; and introduction of a small brick vent in the rear facade to allow for mechanical ventilation of the bathroom. (Linked with 25/05672/LBC)

    Decided 7 Oct 2025 Full applications

Timeline

Dates from the published record

  1. 4 Nov 2025

    Received by Westminster

  2. 6 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 1 January 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 65 days over the applications it decided in the last year.

Cases linked to this one on the register

  • 25/07986/LBC Awaiting decision

    12C Warrington Crescent London W9 1EL

    Replacement of front facade window glazing within exiting timber frames with slim line double-glazing (installing new putty). Internal alterations including demolition and reconfiguration of internal partitions; demolition and reconfiguration of internal stair connecting to mezzanine; demolition and reconfiguration of Mezzanine; demolition of existing joinery and fittings; and introduction of fire stopping measures to the doors, walls, ceilings. (Linked with 25/07985/FULL)

    Submitted 4 Nov 2025 Heritage and listed buildings

1 later application on the register refers to this one:

  • 25/07986/LBC Awaiting decision

    12C Warrington Crescent London W9 1EL

    Replacement of front facade window glazing within exiting timber frames with slim line double-glazing (installing new putty). Internal alterations including demolition and reconfiguration of internal partitions; demolition and reconfiguration of internal stair connecting to mezzanine; demolition and reconfiguration of Mezzanine; demolition of existing joinery and fittings; and introduction of fire stopping measures to the doors, walls, ceilings. (Linked with 25/07985/FULL)

    Submitted 4 Nov 2025 Heritage and listed buildings

Who's behind it

Company information only, from the register and Companies House

XAMI LTD Agent

6 applications on PlanIndex · across 2 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

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.

Trade members open them 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 89 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 500 metres

  • 12C Warrington Crescent London W9 1EL

    25/07986/LBC Submitted 4 Nov 2025 0m away

    90% historically approved · decision due ~1 Jan

    Replacement of front facade window glazing within exiting timber frames with slim line double-glazing (installing new putty). Internal alterations including demolition and reconfiguration of internal partitions; demolition and reconfiguration of internal stair connecting to mezzanine; demolition and reconfiguration of Mezzanine; demolition of existing joinery and fittings; and introduction of fire stopping measures to the doors, walls, ceilings. (Linked with 25/07985/FULL)

    Awaiting decision Heritage and listed buildings Demolition Windows or glazing 19 docs

  • 12A Warrington Crescent London W9 1EL

    25/06006/LBC Submitted 22 Aug 2025 0m away

    Replacement of two front lightwell windows with matching double-glazed sash windows made of white painted timber. (Linked with 25/06005/FULL)

    Granted Heritage and listed buildings Windows or glazing 20 docs

  • 12A Warrington Crescent London W9 1EL

    25/06005/FULL Submitted 22 Aug 2025 0m away

    Replacement of two front lightwell windows with matching double-glazed sash windows made of white painted timber. (Linked with 25/06006/LBC)

    Granted Full applications Windows or glazing 23 docs

  • 12C Warrington Crescent London W9 1EL

    25/05672/LBC Submitted 13 Aug 2025 0m away

    Demolition and reconfiguration of internal partitions; demolition and reconfiguration of internal stair connecting to mezzanine; demolition and reconfiguration of Mezzanine; demolition of existing joinery and fittings; demolition and reinstatement of existing decorative features, such as timber and plaster mouldings; using the existing timber frames of the external doors and windows, replace the single glazing with slim line double-glazing; introduce, currently absent, fire stopping measures to the doors, walls, ceilings and floor; and introduction of a small brick vent in the rear facade to allow for mechanical ventilation of the bathroom. (Linked with 25/05671/FULL)

    Refused Heritage and listed buildings Demolition Windows or glazing 24 docs

  • 12C Warrington Crescent London W9 1EL

    25/05671/FULL Submitted 13 Aug 2025 0m away

    Replace the single glazing with slim line double-glazing; and introduction of a small brick vent in the rear facade to allow for mechanical ventilation of the bathroom. (Linked with 25/05672/LBC)

    Granted Full applications Windows or glazing 21 docs

  • 12A Warrington Crescent London W9 1EL

    25/05997/LBC Submitted 22 Aug 2025 1m away

    Replacement of two rear elevation windows and doors. Internal works to include waterproofing on all walls up to 1.2m, the removal of all flooring including screed, repair failed waterproofing, reinstate floor with acoustic treatment (to isolate noise from underground trains), underfloor heating and then to reinstate existing skirting; replacement of all joinery will be replaced, works to lighting. (Linked to 25/05996/FULL)

    Granted Heritage and listed buildings Windows or glazing 21 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    15 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

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

    15 Sep 2026 Full applications
  • 26/06234/FULL Awaiting decision

    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))

    11 Sep 2026 Full applications
  • 26/06249/FULL Awaiting decision

    53 Wimpole Street London W1G 8YH

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

    11 Sep 2026 Full applications
  • 26/03576/FULL Decided

    15A Devonshire Terrace London W2 3DW

    Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

    1 Jun 2026 Full applications