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Planning application

21 Charles Street London W1J 5DT

Granted Westminster 25/06733/NMA Non-material amendments

Works: Loft or dormer Demolition Domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Amendments to planning permission dated 22nd September 2011 (RN:11/07285/FULL) for Extension of time for the commencement of development granted planning permission on 24 December 2008 (extant permission: RN: 08/06804); namely, external alterations to existing dwelling at 21 Charles St and 21 Hays Mews including demolition and redevelopment of the mews building (retaining the front facade) to create sub basement, lower basement, ground to second floors including a mansard roof in connection with the use of the building for residential purposes (Class C3). Creation of link at ground floor level and terrace at first floor level within courtyard area. Installation of plant at roof level of No. 21 Charles Street. Namely; to relocate the listed approved drawings and documents so they are a condition on the planning permission.

As published by the council, reference 25/06733/NMA

Application record

Reference
25/06733/NMA
Type
Non-material amendments
Status
Decided
Decision
Granted As published: Application Permitted
Received
18 Sep 2025
Validated
18 Sep 2025
Decided
4 Jun 2026
Ward
West End
Decision by
Complex Delegated Decision
Postcode
W1J 5DT

Timeline

Dates from the published record

  1. 18 Sep 2025

    Received by Westminster

  2. 4 Jun 2026

    Decision issued: Application Permitted

  3. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

The Planning Lab Agent, a planning consultancy

184 applications on PlanIndex · across 15 councils · 100% granted

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Documents

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

19 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 4 June 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 amendment applications

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 35 Hay's Mews London W1J 5PY

    26/05322/FULL Submitted 6 Aug 2026 50 yards away

    88% historically approved · decision due ~6 Oct

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  • 24A Hay's Mews London W1J 5PY

    25/06663/LBC Submitted 17 Sep 2025 50 yards away

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  • Shaw House 6 Chesterfield Street London W1J 5JQ

    26/02086/FULL Submitted 30 Mar 2026 50 yards away

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    12/00413/NMA Submitted 13 Jan 2012 50 yards away

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In Westminster

  • 26/07459/NMA Awaiting decision

    1 Hanover Square London W1S 1HA

    Amendments to planning pemrission dated 10 October 2025 (RN: 25/01558/FULL) for the: Partial demolition, refurbishment and extension of the existing building to provide a sub-basement, basement, ground plus eight storey building; infilling and stepped rear extension; excavation of a new sub-basement level; installation of new plant equipment at basement and roof level; terraces at fourth, fifth, sixth, seventh and eighth floor levels; soft and hard landscaping; reprovision of car parking; new cycle parking facilities; and associated external works. Use of the building for retail and/or restaurant (Class E) on part ground floor and office (Class E) on all other floors. NAMELY, to allow alterations to the design of the ground floor frontages on Hanover Square and St George Street.

    Received 3 Nov, published by the council 5 Nov 2026 Amendments
  • 26/07438/NMA Awaiting decision

    29 - 31 Hill Street London W1J 5LS

    Amendments to planning permission dated 1st July 2025 (RN 25/01006/FULL) for the external alterations at roof level including the creation of Level 04 roof terrace for use in association with existing office (Class E), replacement and installation of new plant and landscaping, replacement of windows, introduction of louvres, removal and replacement of rooflights, installation of new rooflight and other associated works. NAMELY, for alterations comprising of the removal of window sash boxes and weights, changes to the window mullion arrangement, the removal of two sash windows, the installation of secondary glazing, the removal of existing chamber hatch and installation of extract vent and integrated bench, the external replacement of rainwater goods and hoppers, the removal of bricks and installation of airbricks, minor demolition works, replacement of roof covering, removal of ductwork, roof plant rearrangement, the installation of a new external door to plant area, minor layout alterations and other associated works.

    Received 2 Nov, published by the council 6 Nov 2026 Amendments
  • 26/07389/NMA Decided

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    Amendments to planning permission dated 2nd October 2025 (RN 25/04018/FULL) for the Partial demolition, refurbishment, and erection of a mansard roof extension to form a new third floor with dormers to front, side and rear elevations; to form 6 flats (Class C3) on upper floors; external plant equipment and ductwork; lower ground floor excavation to increase floor to ceiling height; replacement windows; cycle parking and associated external alterations; use of the part ground floor and lower ground floor as retail and restaurant (Class E). Site includes 60-68 Ledbury Road) NAMELY, An amendment to the basement and ground floor drawing reference numbers; amendment to the description of development, in reference to restaurant and or retail use; and amendments to C

    Received 28 Oct, published by the council 3 Nov 2026 Amendments
  • 26/07375/NMA Awaiting decision

    77 Hereford Road London W2 5BB

    Amendments to planning permission dated 4th August 2026 (RN 26/03970/FULL) for the Replacement of roof terrace access stair with glazed hatch, new timber decking and front and rear roof railings to roof terrace, with infilling side window of closet wing. NAMELY, Hinged hatch access substituted by sliding hatch.

    Received 28 Oct, published by the council 3 Nov 2026 Amendments