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Planning application

79 Eaton Terrace London SW1W 8TN

Granted Westminster 25/05690/LBC Listed Building Consent Application

Works: Extension Windows or glazing

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

Proposal

Erection of lower ground floor and ground floor rear extensions. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell and installation of a rainwater downpipe to the front elevation. Internal alterations including lowering of floor of front vaults, alterations to stairs including stair winders in some levels; lowering of floor levels in lower ground floor rear room, first and second floors of closet wing, and installation of internal mechanical services.

As published by the council, reference 25/05690/LBC

Application record

Reference
25/05690/LBC
Type
Listed Building Consent Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
13 Aug 2025
Validated
11 Sep 2025
Decided
26 Mar 2026
Ward
Knightsbridge & Belgravia
Decision by
Delegated Decision
Postcode
SW1W 8TN

Site history

Applications at this address on the Westminster register

This site has had 7 applications since 2025: 2 approved, 3 refused.

  • 26/03771/ADLBC Awaiting decision

    79 Eaton Terrace London SW1W 8TN

    Detailed drawings of a) new windows and doors to the rear lower ground and ground floor extensions; b) new rear dormer windows; c) new staircase; d) new cornicing and skirting; and e) internal doors pursuant to Condition 6 of listed building consent dated 23 March 2026 (RN: 25/05690/LBC) [Linked to 26/03720/ADFULL]

    Submitted 8 Jun 2026 Conditions
  • 26/03720/ADFULL Decided

    79 Eaton Terrace London SW1W 8TN

    Details of sample panel of brickwork; detailed drawings of new windows and doors to the rear lower ground and ground floor extensions; and detailed drawings of a hard and soft landscaping scheme pursuant to Conditions 4, 7(a) and 15 of planning permission dated 23 March 2026 (RN: 25/05689/FULL).

    Submitted 8 Jun 2026
  • 26/00220/ADFULL Refused

    79 Eaton Terrace London SW1W 8TN

    Sample panel of brickwork, built on site, which shows the colour, texture, face bond and pointing pursuant to condition 4 of planning permission dated 8th April 2025 (RN 24/08694/FULL)

    Decided 3 Mar 2026 Full applications
  • 26/00045/ADFULL Refused

    79 Eaton Terrace London SW1W 8TN

    Details of sample panel of brickwork held on site pursuant to condition 4 of planning permission dated 8th April 2025 (RN: 24/08694/FULL). Linked to 26/01343/ADLBC.

    Decided 23 Apr 2026 Full applications
  • 26/01343/ADLBC Refused

    79 Eaton Terrace London SW1W 8TN

    Details of sample panel of brickwork held on site pursuant to condition 3 of listed building consent dated 8th April 2025 (RN: 24/08695/LBC). Linked with 26/00045/ADFULL

    Decided 23 Apr 2026 Conditions
  • 25/05689/FULL Granted

    79 Eaton Terrace London SW1W 8TN

    Erection of lower ground floor and ground floor rear extensions. Installation of air conditioning plant within two acoustic enclosures in rear garden and associated landscaping works. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell, alterations to front vaults and installation of a rainwater downpipe to the front elevation.

    Decided 26 Mar 2026 Full applications

Timeline

Dates from the published record

  1. 13 Aug 2025

    Received by Westminster

  2. 11 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 26 Mar 2026

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/03771/ADLBC Awaiting decision

    79 Eaton Terrace London SW1W 8TN

    Detailed drawings of a) new windows and doors to the rear lower ground and ground floor extensions; b) new rear dormer windows; c) new staircase; d) new cornicing and skirting; and e) internal doors pursuant to Condition 6 of listed building consent dated 23 March 2026 (RN: 25/05690/LBC) [Linked to 26/03720/ADFULL]

    Submitted 8 Jun 2026 Conditions

Who's behind it

Company information only, from the register and Companies House

Clark Architecture and Design ltd. Agent, an architecture practice registered in London

Active · incorporated 2017 · London

17 applications on PlanIndex · across 4 councils · 79% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

21 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 26 March 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 heritage and listed building applications

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 79 Eaton Terrace London SW1W 8TN

    25/05689/FULL Submitted 13 Aug 2025 50 yards away

    Erection of lower ground floor and ground floor rear extensions. Installation of air conditioning plant within two acoustic enclosures in rear garden and associated landscaping works. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell, alterations to front vaults and installation of a rainwater downpipe to the front elevation.

    Granted Full applications Extension Windows or glazing 54 docs

  • 79 Eaton Terrace London SW1W 8TN

    26/00220/ADFULL Submitted 15 Jan 2026 50 yards away

    Sample panel of brickwork, built on site, which shows the colour, texture, face bond and pointing pursuant to condition 4 of planning permission dated 8th April 2025 (RN 24/08694/FULL)

    Refused Full applications 11 docs

  • 79 Eaton Terrace London SW1W 8TN

    26/03771/ADLBC Submitted 8 Jun 2026 50 yards away

    89% historically approved · decision due ~3 Sep

    Detailed drawings of a) new windows and doors to the rear lower ground and ground floor extensions; b) new rear dormer windows; c) new staircase; d) new cornicing and skirting; and e) internal doors pursuant to Condition 6 of listed building consent dated 23 March 2026 (RN: 25/05690/LBC) [Linked to 26/03720/ADFULL]

    Awaiting decision Conditions Extension Loft or dormer +1 18 docs

  • 79 Eaton Terrace London SW1W 8TN

    26/00045/ADFULL Submitted 6 Jan 2026 50 yards away

    Details of sample panel of brickwork held on site pursuant to condition 4 of planning permission dated 8th April 2025 (RN: 24/08694/FULL). Linked to 26/01343/ADLBC.

    Refused Full applications 9 docs

  • 79 Eaton Terrace London SW1W 8TN

    26/01343/ADLBC Submitted 6 Jan 2026 50 yards away

    Details of sample panel of brickwork held on site pursuant to condition 3 of listed building consent dated 8th April 2025 (RN: 24/08695/LBC). Linked with 26/00045/ADFULL

    Refused Conditions 9 docs

  • 75 Eaton Terrace London SW1W 8TN

    26/07295/TCA Submitted 26 Oct 2026 50 yards away

    100% historically approved · decision due ~21 Dec

    Magnolia in the rear garden- Reduce crown by 1.5 Metres on North, west and southern aspects Lift crown to a height of 3 Metres from ground level This tree has a twin stem that twist across each other, with a bark inclusion at the division, reducing the crown will reduce forces at the division reducing the risk of the tree failing at this point during storm condition. In addition the tree has out grown its position in the small garden and the crown reduction would be in keeping with the character and dimensions of the garden

    Awaiting decision Trees

In Westminster

  • 26/07529/LBC Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water supply pipe on rear courtyard elevation. (Linked with 26/07528/FULL)

    Received 5 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
  • 26/07509/LBC Awaiting decision

    Buckingham Palace The Mall London SW1A 1AA

    Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07508/FULL)

    Received 4 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
  • 26/07473/LBC Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07472/FULL)

    Received 3 Nov, published by the council 6 Nov 2026 Heritage and listed buildings
  • 26/07471/LBC Awaiting decision

    12 Queen Anne's Gate London SW1H 9AA

    Excavation of single-storey basement, internal reconfiguration and installation of modern services. (Linked with 26/07470/FULL)

    Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings
  • 26/07461/LBC Awaiting decision

    1 Savile Row London W1S 3JR

    Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.

    Received 3 Nov, published by the council 5 Nov 2026 Heritage and listed buildings