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Planning application

59 Eaton Place London SW1X 8DF

Granted Westminster 25/08951/FULL Full Planning Permission Application

Works: Windows or glazing

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

Proposal

Replacement of windows; installation of air conditioning condenser units and acoustic screen at rear lower ground floor level; formation of new door openings at lower ground floor rear elevation; installation of external spiral stair within rear courtyard; and associated external alterations.

As published by the council, reference 25/08951/FULL

Application record

Reference
25/08951/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
9 Dec 2025
Validated
4 Mar 2026
Decided
14 Jul 2026
Ward
Knightsbridge & Belgravia
Decision by
Delegated Decision
Postcode
SW1X 8DF

Site history

Applications at this address on the Westminster register

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

  • 25/08952/LBC Granted

    59 Eaton Place London SW1X 8DF

    Replacement of windows; installation of air conditioning condenser units and acoustic screen at rear lower ground floor level; formation of new door openings at lower ground floor rear elevation involving lowering of sill levels; installation of external spiral stair within rear courtyard; internal alterations including removal of non historic fabric, reinstatement of historic features, and associated refurbishment works.

    Decided 14 Jul 2026 Heritage and listed buildings

Timeline

Dates from the published record

  1. 9 Dec 2025

    Received by Westminster

  2. 4 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 14 Jul 2026

    Decision issued: Application Permitted

  4. 29 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Montagu Evans LLP Agent, registered in London

Active · incorporated 2005 · London

1,088 applications on PlanIndex · across 121 councils · 98% granted

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

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Documents

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

37 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.

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What this grant of permission means

Westminster granted permission on 14 July 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

  • 59 Eaton Place London SW1X 8DF

    25/08952/LBC Submitted 9 Dec 2025 50 yards away

    Replacement of windows; installation of air conditioning condenser units and acoustic screen at rear lower ground floor level; formation of new door openings at lower ground floor rear elevation involving lowering of sill levels; installation of external spiral stair within rear courtyard; internal alterations including removal of non historic fabric, reinstatement of historic features, and associated refurbishment works.

    Granted Heritage and listed buildings Windows or glazing 31 docs

  • Maisonette Basement And Ground Floor Flat 59 Eaton Place London SW1X 8DF

    26/02452/ADLBC Submitted 14 Apr 2026 50 yards away

    90% historically approved · decision due ~9 Jun

    Details of fireplaces; floor mounted FCUs, associated joinery and furniture; replacement LG balustrade; plasterwork at ground floor; level changes; and cavity drain system pursuant to condition 4 of listed building consent dated 05 March 2026 (RN: 26/00813/LBC)

    Awaiting decision Conditions 12 docs

  • Maisonette Basement And Ground Floor Flat 59 Eaton Place London SW1X 8DF

    26/00813/LBC Submitted 10 Feb 2026 50 yards away

    Internal alterations including removal of modern fabric, amendments to room layout, repairs from water ingress damage and installation of modern services.

    Granted Heritage and listed buildings 16 docs

  • Basement And Ground Floor Maisonette 53 Eaton Place London SW1X 8DE

    20/05723/NMA Submitted 11 Sep 2020 50 yards away

    Amendments to planning permission dated 31 July 2019 (RN: 19/02607) for Amalgamation of the lower ground and ground floor flat. Excavation of a single storey basement beneath closet wing and part of rear courtyard. Lowering of the floor in front basement vault. Erection of two storey rear infill extension. Erection of mechanical plant and enclosure in rear courtyard. Alterations to rear elevation including new window openings and replacement windows and works of repair and refurbishment; Namely, minor amendments including repositioning of boiler flue and airbricks on rear ground floor elevation, installation of plant bed within lightwell paving at rear lower ground floor level and installation of green wall on party wall in rear lightwell.

    Granted Amendments Extension Windows or glazing 64 docs
    Small domestic

  • 67 Eaton Place London SW1X 8DF

    26/00982/LBC Submitted 17 Feb 2026 50 yards away

    Creation of roof terrace on rear mews building including new paving, planting and balustrade.

    Granted Heritage and listed buildings 18 docs

  • 67 Eaton Place London SW1X 8DF

    25/05249/LBC Submitted 28 Jul 2025 50 yards away

    Creation of a new roof terrace on rear mews building, including new paving, planting and balustrade.

    Granted Heritage and listed buildings Roofing 21 docs

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront.

    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 repolacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06234/FULL Awaiting decision

    40 Grosvenor Place London SW1X 7HJ

    Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g))

    Received 11 Sep, published by the council 18 Sep 2026 Full applications
  • 26/06249/FULL Awaiting decision

    53 Wimpole Street London W1G 8YH

    Removal and Installation of external rear air condensers and associated pipe work to ground floor, including internal works to ground and first floor. (Linked with 26/06250/LBC)

    Received 11 Sep, published by the council 18 Sep 2026 Full applications
  • 26/03576/FULL Decided

    15A Devonshire Terrace London W2 3DW

    Erection of an infill extension to basement courtyard to form new bedroom and internal alterations. (Linked with 26/03577/LBC)

    Received 1 Jun, published by the council 11 Sep 2026 Full applications