Planning application
21 Lees Place London W1K 6LR
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)
-
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)
-
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)
-
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))
-
25/06741/FULL Withdrawn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)
Timeline
Dates from the published record
-
24 Jun 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
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 66 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 78 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
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
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
87% 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
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
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
87% 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
Other lawful development applications
In Westminster
-
26/06158/CLOPUD Awaiting decision
2 Hamilton Gardens London NW8 9PT
Erection of replacement, enlarged single storey ground floor rear extension.
-
26/06080/CLEUD Awaiting decision
91 Gloucester Place London W1U 6JG
Certificate of lawfulness for an existing use or development to confirm that the development authorised by full planning permission ref. 22/08385/FULL & listed building consent (RN 22/08386/LBC) has lawfully commenced as a result of the works evidenced.
-
26/06044/CLOPUD Awaiting decision
9 Abinger Mews W9 3SP
Proposed loft conversion with rear dormer and 3 front rooflights to existing mid-terraced house.
-
26/06035/CLOPUD Awaiting decision
30 Ashworth Road W9 1JY
Erection of new garden retaining wall and erection of new garden timber fence to match the height of existing fence.
-
26/05871/CLEUD Awaiting decision
32 Cambridge Street London SW1V 4QH
Confirmation of the lawful implementation of planning permission dated 13 August 2021 (RN: 21/04143/FULL) has commenced before the expiry of the three year time period and may, therefore, lawfully be carried out and completed.