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Planning application

Flat 3 21 Cleveland Square London W2 6DG

Decided Westminster 25/08170/ADFULL Approval of Details (Full PP)

Works: Windows or glazing

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Detailed drawings showing top floor front and rear windows/doors to be timber-framed, alteration to the scheme: all replacement windows to second, third and fourth floors be vacuum or slimline double-glazed (with a maximum total glazing depth of 16mm), and photographs or specifications of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to conditions 4, 5, 6 of planning permission dated 31st July 2025 (RN 24/08233/FULL)

As published by the council, reference 25/08170/ADFULL

Application record

Reference
25/08170/ADFULL
Type
Approval of Details (Full PP)
Status
Decided
Received
10 Nov 2025
Validated
18 Nov 2025
Decided
16 Feb 2026
Ward
Lancaster Gate
Postcode
W2 6DG

Site history

Applications at this address on the Westminster register

This site has had 7 applications since 2025: 0 approved, 1 refused.

  • 26/02923/LBC Awaiting decision

    Flat 3 21 Cleveland Square London W2 6DG

    Installation of two new heat pumps located on the roof terrace (previously approved under refs. 24/08233/FULL and 24/08234/LBC) and internal alterations, in association with the amalgamation of Flat 3 and Flat 5 to form a single residential unit. (Linked to 26/02922/FULL)

    Submitted 4 May 2026 Heritage and listed buildings
  • 26/02922/FULL Awaiting decision

    Flat 3 21 Cleveland Square London W2 6DG

    Amalgamation of Flat 3 and Flat 5 to form a single residential unit and installation of two heat pumps on the roof terrace (previously approved under refs. 24/08233/FULL and 24/08234/LBC) (Linked to 26/02923/LBC)

    Submitted 4 May 2026 Full applications
  • 25/07604/ADLBC Withdrawn

    Flat 3 21 Cleveland Square London W2 6DG

    Details of facing materials to be used, including glazing, and elevations and roof plans, and details of top floor front and rear windows/doors pursuant to Conditions 3, 4 and 5 of Listed Building Consent dated 31 July 2025 (RN: 24/08234/LBC)

    Decided 7 Nov 2025 Conditions
  • 25/06875/LBC Withdrawn

    Flat 3 21 Cleveland Square London W2 6DG

    Installation of two new heat pumps located on the roof terrace. Internal alterations including removal of one boiler, one kitchen, and two ensuite bathrooms. In association with amalgamation of Flat 3 and Flat 5 to form a single residential unit (Linked to 25/06874/FULL)

    Decided 2 Dec 2025 Heritage and listed buildings
  • 25/06874/FULL Withdrawn

    Flat 3 21 Cleveland Square London W2 6DG

    Installation of two new heat pumps located on the roof terrace. Internal alterations including removal of one boiler, one kitchen, and two ensuite bathrooms. In association with amalgamation of Flat 3 and Flat 5 to form a single residential unit (linked to 25/06875/LBC)

    Decided 2 Dec 2025 Full applications
  • 25/06094/ADLBC Refused

    Flat 3 21 Cleveland Square London W2 6DG

    Details of facing materials you will use, including glazing, and elevations and roof plans, top floor front and rear windows/doors to be timber-framed and replacement windows to second, third and fourth floors be vacuum or slimline double-glazed pursuant to Conditions 3, 4 and 5 of Listed Building Consent dated 31 July 2025 (RN24/08234/LBC)

    Decided 16 Sep 2025 Conditions

Timeline

Dates from the published record

  1. 10 Nov 2025

    Received by Westminster

  2. 18 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 16 Feb 2026

    Decision issued

  4. 20 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Office Ten Architecture Agent, an architecture practice registered in London

Active · incorporated 2021 · London

12 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

24 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

After the decision

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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

  • Flat 3 21 Cleveland Square London W2 6DG

    25/06094/ADLBC Submitted 27 Aug 2025 50 yards away

    Details of facing materials you will use, including glazing, and elevations and roof plans, top floor front and rear windows/doors to be timber-framed and replacement windows to second, third and fourth floors be vacuum or slimline double-glazed pursuant to Conditions 3, 4 and 5 of Listed Building Consent dated 31 July 2025 (RN24/08234/LBC)

    Refused Conditions Windows or glazing 29 docs
  • Flat 3 21 Cleveland Square London W2 6DG

    26/02922/FULL Submitted 4 May 2026 50 yards away

    88% historically approved · decision due ~29 Jun

    Amalgamation of Flat 3 and Flat 5 to form a single residential unit and installation of two heat pumps on the roof terrace (previously approved under refs. 24/08233/FULL and 24/08234/LBC) (Linked to 26/02923/LBC)

    Awaiting decision Full applications 33 docs
  • Flat 3 21 Cleveland Square London W2 6DG

    26/02923/LBC Submitted 4 May 2026 50 yards away

    90% historically approved · decision due ~29 Jun

    Installation of two new heat pumps located on the roof terrace (previously approved under refs. 24/08233/FULL and 24/08234/LBC) and internal alterations, in association with the amalgamation of Flat 3 and Flat 5 to form a single residential unit. (Linked to 26/02922/FULL)

    Awaiting decision Heritage and listed buildings 29 docs
  • Flat 3 21 Cleveland Square London W2 6DG

    25/06874/FULL Submitted 24 Sep 2025 50 yards away

    Installation of two new heat pumps located on the roof terrace. Internal alterations including removal of one boiler, one kitchen, and two ensuite bathrooms. In association with amalgamation of Flat 3 and Flat 5 to form a single residential unit (linked to 25/06875/LBC)

    Withdrawn Full applications 33 docs
  • Flat 3 21 Cleveland Square London W2 6DG

    25/07604/ADLBC Submitted 17 Oct 2025 50 yards away

    Details of facing materials to be used, including glazing, and elevations and roof plans, and details of top floor front and rear windows/doors pursuant to Conditions 3, 4 and 5 of Listed Building Consent dated 31 July 2025 (RN: 24/08234/LBC)

    Withdrawn Conditions Windows or glazing 10 docs
  • Flat 3 21 Cleveland Square London W2 6DG

    25/06875/LBC Submitted 24 Sep 2025 50 yards away

    Installation of two new heat pumps located on the roof terrace. Internal alterations including removal of one boiler, one kitchen, and two ensuite bathrooms. In association with amalgamation of Flat 3 and Flat 5 to form a single residential unit (Linked to 25/06874/FULL)

    Withdrawn Heritage and listed buildings 30 docs

In Westminster

  • 26/07528/FULL Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

    Received 5 Nov, published by the council 6 Nov 2026 Full applications
  • 26/05200/FULL Decided

    1 The Court House 165 Seymour Place London W1H 4PU

    Installation of waterproofing system to the existing lead flat roofs

    Received 3 Aug, published by the council 28 Aug 2026 Full applications
  • 26/07521/FULL Awaiting decision

    Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

    Installation of one external condenser unit

    Received 4 Nov, published by the council 6 Nov 2026 Full applications
  • 26/07508/FULL Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)

    Received 4 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07472/FULL Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

    Received 3 Nov, published by the council 6 Nov 2026 Full applications