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Planning application

26/04763/NMA

47 Chester Square London SW1W 9EA

Awaiting decision Westminster Non-material amendments

Proposal

Amendments to planning permission dated 11 June 2026 (25/08223/FULL) for: demolition of No 47 Ebury Mews and the erection of a two-storey replacement mews building with new basement level. Alterations and refurbishment to No. 47 Chester Square including demolition of modern rear additions, reinstatement of lower ground floor lightwell to the rear and extension of existing lower ground floor. Construction of ground floor link from 47 Chester Square to 47 Ebury Mews, consolidation of amenity courtyard at ground floor level, other internal and external works of refurbishment to 47 Chester Square namely, to allow alterations to link structure between the main house and mews design, and the rear roof profile to the main house. (Linked with 26/04756/LBC)

As published by the council, reference 26/04763/NMA

Timeline

Dates from the published record

  1. 16 Jul 2026

    Received by Westminster

  2. 25 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About amendments applications

How this application type works

An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.

More on amendments applications in our guide

Nearby applications

Within 500 metres

  • 26/04643/ADLBC Awaiting decision

    47 Chester Square London SW1W 9EA

    Detailed drawing of the front entrance to be simplified to reflect a more traditional modest mews style and the existing entrance; Pursuant to condition 8 of Listed Building Consent dated 11 June 2026 (25/08226/LBC)

    10 Jul 2026 0m away Conditions
  • 26/04756/LBC Awaiting decision

    47 Chester Square London SW1W 9EA

    Rebuilding of the rear of the top floor mansard roof to the main house, with dormer windows, and new monopitch rooflight to the stairwell below; removal of awning to the closet wing and parapet raised by four brick courses to match existing height, with Portland Stone coping added; re-route downpipes to rear elevation of main house; amended detailed design of glazed link; enlarge front door to Ebury Mews entrance; addition of flues above roof to the mews house; strengthening to existing floor joists where required within main house; improvements to building services. (Linked with 26/04763/NMA)

    16 Jul 2026 1m away Heritage and listed buildings
  • 25/08223/FULL Awaiting decision

    47 Chester Square London SW1W 9EA

    Variation of Condition 1 of planning permssion dated 10th September 2025 (RN:24/05375/FULL) for the Demolition of No 47 Ebury Mews and the erection of a two-storey replacement mews building with new basement level. Alterations and refurbishment to No. 47 Chester Square including demolition of modern rear additions, reinstatement of lower ground floor lightwell to the rear and extension of existing lower ground floor. Construction of ground floor link from 47 Chester Square to 47 Ebury Mews, consolidation of amenity courtyard at ground floor level, other internal and external works of refurbishment to 47 Chester Square namely, to allow rebuilding of the rear of the top floor mansard roof to the main house with new dormer windows and new monopitch rooflight to the stairwell below; awning removed to the closet wing; downpipes re-routed to rear elevation of main house; revisions to detailed design of glazed link; front door to Ebury Mews entrance enlarged and addition of flues above roof to the mews house. (Linked with 25/08226/LBC)

    11 Nov 2025 7m away Full applications
  • 25/08226/LBC Awaiting decision

    47 Chester Square London SW1W 9EA

    Internal alterations. (Linked with 25/08223/FULL)

    11 Nov 2025 7m away Heritage and listed buildings
  • 25/07578/CLEUD Awaiting decision

    46 Chester Square London SW1W 9EA

    Confirm the lawful planning use of the site is as a single dwellinghouse (Use Class C3).

    20 Oct 2025 8m away Lawful development
  • 25/08383/ADFULL Awaiting decision

    47 Chester Square London SW1W 9EA

    Details of Site Waste Management Plan, pursuant to condition 5 of planning permission dated 10 September 2025 (RN 24/05375/FULL)

    17 Nov 2025 9m away Full applications

In Westminster

  • 26/04962/NMA Awaiting decision

    Serpentine Gallery Kensington Gardens Exhibition Road London W2 3XA

    Amendments to planning permission dated 27 February 2025 (RN: 24/08940/FULL) for the installation of temporary art sculpture from 24 March 2025 to 09 September 2025; NAMELY to extend the temporary planning consent until 21st March 2027.

    24 Jul 2026 Amendments
  • 26/04951/NMA Awaiting decision

    43 - 45 Portman Square London W1H 6LY

    Amendments to planning permission dated 22 April 2026 (25/06153/FULL) for: Variation of Condition 1 of planning permission dated 7 April 2025 (24/04987/FULL) for: Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works NAMELY; to amend the wording of Condition 27 to allow basement demolition work to proceed.

    23 Jul 2026 Amendments
  • 26/04873/NMA Awaiting decision

    Orbis House 5 Mansfield Street London W1G 9NG

    Amendments to planning permission dated 05 September 2024 (RN: 24/01895/FULL) for: new courtyard surface including walk-on rooflight; window and door alterations; new window to Mansfield Mews at second floor level; new rooflights; repairs to roof and external brickwork; erection of new staircase in front area lightwell; partial infill of rear lightwell at ground floor level; erection of roof terrace; installation of PV panels at roof level; and associated works namely; to allow provision of guarding system to provide safe access for maintenance across the roof; alteration at south elevation omitting window SFW11 from the new WC, remove the existing RWP from the internal courtyard corner, removal of the existing plastic section of a redundant vent pipe at lower level and retain original lead; new cast iron rain water pipes at west elevation; and internal layout alterations at basement, ground, 2nd, 3rd floors. (Linked with 26/04876/LBC)

    21 Jul 2026 Amendments
  • 26/04870/NMA Awaiting decision

    34 Park Street London W1K 2JD

    Amendments to planning permission dated 8 May 2026 (25/07808/FULL) for general refurbishment and M&E upgrade of the office building namely; roof walkable skylight, GF meeting room wall mounted TV, garden bench and planters, fire lobbies, L4 glass partition, reception to hall door swing change, front lightwell electric cupboard change, wall panelling on LGF and L5, LGF modular screen, LGF courtyard window door infill, and LGF cove lighting.

    21 Jul 2026 Amendments
  • 26/04816/NMA Awaiting decision

    Ebury Bridge Estate Ebury Bridge Road London SW1W 8PX

    Amendments to planning permission dated 21 July 2023 (RN:23/00331/COOUT) for a mixed use development in outline for residential floorspace and ancillary residential facilities (Class C3) non-residential floorspace comprising flexible retail (Classes A1 - A4), community (Class D1), leisure (Class D2) and workspace (Class B1) floorspace; provision of basement; new pedestrian and vehicular access; and associated amenity space, open space, plant, landscaping, car and cycle parking, refuse storage, servicing area, and other associated infrastructure works; and detailed planning consent for Blocks 7 and 8 comprising residential floorspace and ancillary residential facilities (Class C3); provision of a basement; new pedestrian and vehicular access; and associated amenity space landscaping, car and cycle parking, refuse storage, servicing area, and other associated infrastructure works, namely amendments to the approved Masterplan Phasing to incorporate enabling works and piling in Phase 2a and 3a.

    20 Jul 2026 Amendments