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107 Eaton Square London SW1W 9AA

25/07907/NMAApproved

Approved on 10 February 2026

Site boundary (council red line)

Proposal

Amendments to planning permission dated 23 August 2021 (RN: 21/03324/FULL) for 'Demolition and redevelopment behind retained front and part facades as well as the demolition and reconstruction of mews properties to create two single family dwelling houses. Associated alterations and extensions include subterranean basements, which will extend beneath the mews; re-instatement of the party wall in the rear courtyard; re-instatement of entrance to no.108; rear lower ground floor extensions partially infilling the rear courtyard and with roof terraces above; construction of full height closet wing extensions; reconstruction of mansard roof extension; installation of mechanical plant; and internal alterations on all floor levels (Site includes nos. 107 - 108 Eaton Square and nos. 107 - 108 Eccleston Mews) (as amended by RN: 20/00069/NMA). Namely, internal changes to door openings, setting out and addition of insulation and minor changes to front entrance doors.

Submitted
31 October 2025
  1. Received31 Oct
  2. Validated
  3. Consult.
  4. Target
  5. Decided10 Feb

Decided in 102 days

About this application

This is a planning application for demolition at 107 Eaton Square London SW1W 9AA. Westminster has handled 27,108 applications of this type. This one was decided in 102 days, 8 weeks longer than Westminster's typical decision time. The site is in the Belgravia conservation area, with 4 listed buildings nearby. There have been 3 other applications at this address. We hold 1,477 applications in total for the SW1W postcode area.

Application details

Postcode
SW1W 9AA

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Belgravia
  • Listed building: Basement Flat 110 Eaton Square London SW1W 9AAOn or next to this site
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

  1. 2025
    6 Nov

    Internal changes to some door openings, minor setting out, addition of insulation and minor changes to front…

    ApprovedListed building consentFiled alongside25/08094/LBC
  2. 2025
    31 Oct

    Amendments to planning permission dated 23 August 2021 (RN: 21/03324/FULL

    This applicationApprovedNon-material amendment25/07907/NMA

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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