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Planning application

12 Denbigh Street London SW1V 2ER

Granted Westminster 25/09106/FULL Full Planning Permission Application

Works: Extension Loft or dormer Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Erection of mansard roof extension and alterations to the front and rear elevations including changes to the windows and to rear closet wing.

As published by the council, reference 25/09106/FULL

Application record

Reference
25/09106/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
16 Dec 2025
Validated
16 Dec 2025
Decided
20 Mar 2026
Ward
Pimlico North
Decision by
Delegated Decision
Postcode
SW1V 2ER

Timeline

Dates from the published record

  1. 16 Dec 2025

    Received by Westminster

  2. 20 Mar 2026

    Decision issued: Application Permitted

  3. 20 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

The Plannery Ltd Agent, registered in Woodford Green

Active · incorporated 2023 · Woodford Green

3 applications on PlanIndex · across 2 councils

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Documents

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

21 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.

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What this grant of permission means

Westminster granted permission on 20 March 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

  • 9 Churton Place London SW1V 2LN

    25/07726/FULL Submitted 24 Oct 2025 50 yards away

    Erection of a mansard roof extension to replace the existing butterfly roof, including the addition of dormer windows to the rear and front elevations and the installation of a roof light.

    Refused Full applications Extension Loft or dormer +1 25 docs

  • 36A Tachbrook Street London SW1V 2JS

    26/02676/FULL Submitted 22 Apr 2026 50 yards away

    87% historically approved · decision due ~17 Jun

    Installation of replacement shopfront inlcuding signage; and other associated works. (Retrospective) Linked with 26/02677/ADV

    Awaiting decision Full applications Windows or glazing 6 docs

  • 36A Tachbrook Street London SW1V 2JS

    26/02677/ADV Submitted 22 Apr 2026 50 yards away

    84% historically approved · decision due ~17 Jun

    Display of one non illuminaed fascia sign measuring 0.6m x 4.88m and one non illuminated projecting sign measuring 450m x 450m. (Retrospective) Linked with 26/02676/FULL

    Awaiting decision Advertising 6 docs

  • Basement And Ground Floor 16 Warwick Way London SW1V 1RX

    25/06385/FULL Submitted 8 Sep 2025 50 yards away

    Installation of kitchen extract duct at ground floor level with external discharge grill at basement level to rear services yard.

    Granted Full applications 21 docs

  • Basement And Ground Floor 16 Warwick Way London SW1V 1RX

    26/02078/ADV Submitted 30 Mar 2026 50 yards away

    Display of an externally illuminated fascia sign measuring 0.75m x 4.3m; and an externally illuminated projecting sign measuring 0.61m x 1.3m.

    Granted Advertising 5 docs

  • 16 - 16A Churton Street London SW1V 2LL

    26/00975/ADFULL Submitted 16 Feb 2026 50 yards away

    Detailed design of exterior of the new roof extension and new dormers pursuant to Condition 4 (A and B) of planning permission dated 13 February 2026 (RN25/07509/FULL)

    Granted Full applications Extension Loft or dormer +1 13 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    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 repolacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06287/FULL Awaiting decision

    Barness Court 6 - 8 Westbourne Terrace London W2 3UW

    Installation of a new riser as per GW10 design comprising a single riser with 7 entries and 9 Taylor valves to be installed. (Linked with 26/06288/LBC)

    Received 14 Sep, published by the council 21 Sep 2026 Full applications
  • 26/06278/FULL Awaiting decision

    40 Wellington Road London NW8 9TJ

    Installation of a new external access ramp/slope to provide accessibility to the Barclays bank ATM.

    Received 14 Sep, published by the council 21 Sep 2026 Full applications
  • 26/06269/FULL Awaiting decision

    Maisonette Basement And Ground Floor 101 Hereford Road London W2 5BB

    Amalgamation of existing lower ground and ground floor maisonette with the first floor flat to create a single dwelling and associated internal works including creation of a staircase. (Linked with 26/06270/LBC)

    Received 14 Sep, published by the council 21 Sep 2026 Full applications