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101 Eaton Terrace London SW1W 8TW

25/06354/FULLApproved
Discharge / amendments

Approved on 17 February 2026

Council decision: Application Permitted

Site boundary (council red line)

Proposal

Variation of condition 1 of planing permission dated 6 August 2025 (RN: 25/02054/FULL) for the: "Erection of a rear extension to the lower ground floor (replacing the existing non-original conservatory), including internal reconfiguration and the addition of an external staircase to the existing front light well". Namely, to allow lowering of window ground floor cill at Room 03; omit both rebuilding of the collapsed brick nib wall and installing of glass doors or full-height glass panel doors at the rear elevation (room 4); and associated works.

Received
8 September 2025
  1. Received8 Sep
  2. Validated22 Sep
  3. Consult.
  4. Target
  5. Decided17 Feb

Decided in 148 days

About this application

This is a planning application for a rear extension at 101 Eaton Terrace London SW1W 8TW. Westminster has handled 27,108 applications of this type. This one was decided in 148 days, 14 weeks longer than Westminster's typical decision time. The site is in 13 listed buildings nearby. There have been 5 other applications at this address. We hold 1,477 applications in total for the SW1W postcode area.

Application details

Postcode
SW1W 8TW

Planning application dates

Date validated
22 September 2025

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: BelgraviaPart of the site
  • Listed building: Grade II: 87-101, Eaton Terrace Sw1On 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 (21)

flood storage areas, 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.

Planning history at this site

6 other applications at this property, newest first.

  1. 2026
    13 May

    Installation of one new condensers to the rear elevation. (Linked to 25/09277/FULL

    ApprovedListed building consent25/09278/LBC
  2. 2026
    13 May

    Installation of one new condensers to the rear elevation. (Linked to 25/09278/LBC

    ApprovedApplication25/09277/FULL
  3. 2026
    3 Apr

    The replacement of the non-original conservatory glass roof with a new double-glazed roof matching the…

    ApprovedListed building consent26/02260/LBC
  4. 2025
    8 Sep

    Lowering of window ground floor cill at Room 03; omit both rebuilding of the collapsed brick nib wall and…

    ApprovedListed building consent25/06355/LBC
  5. 2025
    24 Mar

    Erection of a rear extension to the lower ground floor (replacing the existing non-original conservatory)…

    ApprovedListed building consent25/01965/LBC
  6. 2025
    24 Mar

    Erection of a rear extension to the lower ground floor (replacement of existing non-original conservatory)…

    WithdrawnListed building consent25/01964/FULL

Source: Westminster

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

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