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Planning application

21 Lees Place London W1K 6LR

Awaiting decision Westminster 26/04177/CLEUD Lawful development

Works: New dwelling Loft or dormer

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

Proposal

Lawful implementation of previously approved development under planning ref 24/08789/FULL granted 10th February 2025 for "Amalgamation of two existing two-bedroom flats located on first and second floors of the property into a single family sized four-bedroom residential unit. Addition of a rooflight to the flat section of the roof."

As published by the council, reference 26/04177/CLEUD

Application record

Reference
26/04177/CLEUD
Category
Lawful development
Status
Pending
Received
24 Jun 2026
Validated
24 Jun 2026
Postcode
W1K 6LR

Site history

Applications at this address on the Westminster register

This site has had 6 applications since 2025: 1 approved, 0 refused.

  • 26/05671/ADFULL Decided

    21 Lees Place London W1K 6LR

    Details of Code of Construction Practice pursuant to condition 6 of planning permission dated 7th April 2026 (RN:25/06937/FULL)

    Submitted 19 Aug 2026
  • 26/05248/ADFULL Awaiting decision

    21 Lees Place London W1K 6LR

    Details of contaminated land assessment pursuant to condition 9 of planning permission dated 07 April 2026 (RN: 25/06937/FULL)

    Submitted 4 Aug 2026
  • 26/03678/ADFULL Awaiting decision

    21 Lees Place London W1K 6LR

    Details of new windows and external doors pursuant to condition 4 of planning permission dated 01 April 2026 (RN: 25/06937/FULL)

    Submitted 5 Jun 2026 Full applications
  • 25/06937/FULL Granted

    21 Lees Place London W1K 6LR

    Partial demolition; basement excavation; replacement ground floor frontage; creation of a rear lightwell; installation of a new window on the west elevation; and associated external works in connection with residential use of part of the ground floor and new basement floor as a three bedroom residential unit (Class C3). (Land use swap with 20 Upper Grosvenor Street (REF: 25/06740/FULL))

    Decided 7 Apr 2026 Full applications
  • 25/06741/FULL Withdrawn

    21 Lees Place London W1K 6LR

    Partial demolition and excavation of a new lower ground floor level; installation of a replacement ground floor frontage; creation of a rear lightwell; and associated external works in connection with the use of part of the ground floor and new basement floor as residential floorspace (Class C3) comprising 1x3 bedroom unit. (LAND USE SWAP WITH 20 UPPER GROSVENOR STREET (REF: 25/06740/FULL)

    Decided 23 Sep 2025 Full applications

Timeline

Dates from the published record

  1. 24 Jun 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 19 August 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 91 days over the applications it decided in the last year.

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 lawful development applications in a median of 106 days. More in our guide to how long planning decisions take.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 21 Lees Place London W1K 6LR

    26/05671/ADFULL Submitted 19 Aug 2026 50 yards away

    89% historically approved · decision due ~14 Oct

    Details of Code of Construction Practice pursuant to condition 6 of planning permission dated 7th April 2026 (RN:25/06937/FULL)

    Decided

  • 21 Lees Place London W1K 6LR

    26/05248/ADFULL Submitted 4 Aug 2026 50 yards away

    89% historically approved · decision due ~29 Sep

    Details of contaminated land assessment pursuant to condition 9 of planning permission dated 07 April 2026 (RN: 25/06937/FULL)

    Awaiting decision

  • 21 Lees Place London W1K 6LR

    26/03678/ADFULL Submitted 5 Jun 2026 50 yards away

    88% historically approved · decision due ~31 Jul

    Details of new windows and external doors pursuant to condition 4 of planning permission dated 01 April 2026 (RN: 25/06937/FULL)

    Awaiting decision Full applications Windows or glazing 11 docs

  • 21 Lees Place London W1K 6LR

    25/06937/FULL Submitted 26 Sep 2025 50 yards away

    Partial demolition; basement excavation; replacement ground floor frontage; creation of a rear lightwell; installation of a new window on the west elevation; and associated external works in connection with residential use of part of the ground floor and new basement floor as a three bedroom residential unit (Class C3). (Land use swap with 20 Upper Grosvenor Street (REF: 25/06740/FULL))

    Granted Full applications Demolition Windows or glazing 55 docs

  • 21 Lees Place London W1K 6LR

    25/06741/FULL Submitted 19 Sep 2025 50 yards away

    Partial demolition and excavation of a new lower ground floor level; installation of a replacement ground floor frontage; creation of a rear lightwell; and associated external works in connection with the use of part of the ground floor and new basement floor as residential floorspace (Class C3) comprising 1x3 bedroom unit. (LAND USE SWAP WITH 20 UPPER GROSVENOR STREET (REF: 25/06740/FULL)

    Withdrawn Full applications Demolition 33 docs

  • 57 Green Street London W1K 6RH

    25/09351/FULL Submitted 24 Dec 2025 50 yards away

    88% historically approved · decision due ~9 Jul

    Replacement of two air conditioning condensers and minor alterations to the existing acoustic enclosure (replacement of three solid panels with acoustic louvres)

    Awaiting decision Full applications 36 docs

In Westminster

  • 26/07468/CLOPUD Awaiting decision

    14 - 16 Great Portland Street London W1W 8QW

    Confirmation the demolition of the existing outrigger structure at fifth floor level (the Proposed Works) constitutes the lawful commencement of development pursuant to the Permission.

    Received 3 Nov, published by the council 5 Nov 2026 Lawful development
  • 26/07423/CLOPUD Awaiting decision

    103 Elgin Avenue London W9 2NP

    Painting of the decorative stonework, window frames and doors on the front elevation and front boundary wall

    Received 2 Nov, published by the council 4 Nov 2026 Lawful development
  • 26/07454/CLOPUD Awaiting decision

    10 Stratton Street London W1J 8LG

    Changes to existing windows and doors

    Received 2 Nov, published by the council 5 Nov 2026 Lawful development
  • 26/07381/CLEUD Awaiting decision

    Ground Floor Rear Flat 4 Mozart Street London W10 4LA

    Use of the ground floor rear flat as short-term visitor accommodation.

    Received 28 Oct, published by the council 5 Nov 2026 Lawful development
  • 26/07339/CLOPUD Awaiting decision

    123 Victoria Street London SW1E 6DE

    Use of part of ground floor reception area within Class E including, but not limited to, a retail café (Class E(a)).

    Received 27 Oct, published by the council 30 Oct 2026 Lawful development