Planning application
21 Lees Place London W1K 6LR
Works: Demolition Windows or glazing
Relates to 25/06740/FULL
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
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))
As published by the council, reference 25/06937/FULL
Application record
- Reference
- 25/06937/FULL
- Type
- Full Planning Permission Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 26 Sep 2025
- Validated
- 26 Sep 2025
- Decided
- 7 Apr 2026
- Ward
- West End
- Decision by
- Delegated Decision
- 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)
-
26/04177/CLEUD Awaiting decision
21 Lees Place London W1K 6LR
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."
-
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)
-
25/06741/FULL Withdrawn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
-
26 Sep 2025
Received by Westminster
-
7 Apr 2026
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
-
25/06740/FULL Granted
20 Upper Grosvenor Street London W1K 7PB
Use of the third and fourth floor as offices (Class E). (LAND USE SWAP WITH 21 LEES PLACE (REF: 25/06937/FULL)
4 later applications on the register refer to this one:
-
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)
-
25/06740/FULL Granted
20 Upper Grosvenor Street London W1K 7PB
Use of the third and fourth floor as offices (Class E). (LAND USE SWAP WITH 21 LEES PLACE (REF: 25/06937/FULL)
Who's behind it
Company information only, from the register and Companies House
Newmark LLP Agent
925 applications on PlanIndex · across 40 councils · 97% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
55 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 documentsWhat this grant of permission means
Westminster granted permission on 7 April 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
-
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 -
21 Lees Place London W1K 6LR
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
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
84% historically approved · decision due ~19 Aug
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."
Awaiting decision Lawful development New dwelling Loft or dormer -
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 -
57 Green Street London W1K 6RH
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
Other full applications
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)
-
26/05200/FULL Decided
1 The Court House 165 Seymour Place London W1H 4PU
Installation of waterproofing system to the existing lead flat roofs
-
26/07521/FULL Awaiting decision
Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ
Installation of one external condenser unit
-
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)
-
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)