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Planning application

101 Eaton Terrace London SW1W 8TW

Granted Westminster 25/06354/FULL Full Planning Permission Application

Works: Extension Windows or glazing

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

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.

As published by the council, reference 25/06354/FULL

Application record

Reference
25/06354/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
8 Sep 2025
Validated
22 Sep 2025
Decided
17 Feb 2026
Ward
Knightsbridge & Belgravia
Decision by
Delegated Decision
Postcode
SW1W 8TW

Site history

Applications at this address on the Westminster register

This site has had 6 applications since 2025: 2 approved, 0 refused.

  • 26/02260/LBC Awaiting decision

    101 Eaton Terrace London SW1W 8TW

    The replacement of the non-original conservatory glass roof with a new double-glazed roof matching the existing in profile and design existing conservatory glass roof and adjustments to the rear door, replacement of the living room glass roof, minor rooflight modifications, and missing coping stones.

    Submitted 3 Apr 2026 Heritage and listed buildings
  • 26/02179/FULL Awaiting decision

    101 Eaton Terrace London SW1W 8TW

    Variation of condition 1 of planning permission dated 6th 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, alterations to rear door, replacement of non-original conservatory roof, increase in rooflight dimensions and missing coping stones.

    Submitted 1 Apr 2026 Full applications
  • 25/09277/FULL Awaiting decision

    101 Eaton Terrace London SW1W 8TW

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

    Submitted 22 Dec 2025 Full applications
  • 25/09278/LBC Awaiting decision

    101 Eaton Terrace London SW1W 8TW

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

    Submitted 22 Dec 2025 Heritage and listed buildings
  • 25/06355/LBC Granted

    101 Eaton Terrace London SW1W 8TW

    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. (Amendments to listed building consent dated 07 August 2025 RN: 25/01965/LBC for '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.')

    Decided 17 Feb 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 8 Sep 2025

    Received by Westminster

  2. 22 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 17 Feb 2026

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Documents

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

26 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 documents

What this grant of permission means

Westminster granted permission on 17 February 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

  • 101 Eaton Terrace London SW1W 8TW

    25/09277/FULL Submitted 22 Dec 2025 50 yards away

    87% historically approved · decision due ~8 Jul

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

    Awaiting decision Full applications 36 docs
  • 101 Eaton Terrace London SW1W 8TW

    25/09278/LBC Submitted 22 Dec 2025 50 yards away

    90% historically approved · decision due ~8 Jul

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

    Awaiting decision Heritage and listed buildings 28 docs
  • 101 Eaton Terrace London SW1W 8TW

    26/02179/FULL Submitted 1 Apr 2026 50 yards away

    87% historically approved · decision due ~27 May

    Variation of condition 1 of planning permission dated 6th 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, alterations to rear door, replacement of non-original conservatory roof, increase in rooflight dimensions and missing coping stones.

    Awaiting decision Full applications Extension Loft or dormer 27 docs
  • 101 Eaton Terrace London SW1W 8TW

    26/02260/LBC Submitted 3 Apr 2026 50 yards away

    90% historically approved · decision due ~29 May

    The replacement of the non-original conservatory glass roof with a new double-glazed roof matching the existing in profile and design existing conservatory glass roof and adjustments to the rear door, replacement of the living room glass roof, minor rooflight modifications, and missing coping stones.

    Awaiting decision Heritage and listed buildings Extension Loft or dormer +1 14 docs
  • 101 Eaton Terrace London SW1W 8TW

    25/06355/LBC Submitted 8 Sep 2025 50 yards away

    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. (Amendments to listed building consent dated 07 August 2025 RN: 25/01965/LBC for '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.')

    Granted Heritage and listed buildings Extension Windows or glazing 4 docs
  • 87 Eaton Terrace London SW1W 8TW

    26/05758/FULL Submitted 21 Aug 2026 50 yards away

    87% historically approved · decision due ~19 Oct

    Excavation of rear garden to increase size of lightwell and lower ground floor; install walk on roof lights to flat roofs and replacement of external doors and windows with like for like doors and windows. Internal alterations.

    Awaiting decision Full applications Loft or dormer Windows or glazing

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront with Medication Dispensing Outlet.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06297/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06294/FULL Awaiting decision

    15 Eaton Mews South London SW1W 9HP

    Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06317/FULL Awaiting decision

    124 Hamilton Terrace London NW8 9UT

    Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06273/FULL Awaiting decision

    9A Grosvenor Square London W1K 5AE

    Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

    Received 14 Sep, published by the council 22 Sep 2026 Full applications