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Planning application

Ellerton House 11 Bryanston Square London W1H 2DQ

Granted Westminster 25/07174/LBC Listed Building Consent Application

Relates to 25/07173/FULL

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

Proposal

Replacement of the existing timber pergola over the rear terrace with new. Linked with 25/07173/FULL (Retrospective)

As published by the council, reference 25/07174/LBC

Application record

Reference
25/07174/LBC
Type
Listed Building Consent Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
6 Oct 2025
Validated
6 Oct 2025
Decided
13 Nov 2025
Ward
Marylebone
Decision by
Delegated Decision
Postcode
W1H 2DQ

Site history

Applications at this address on the Westminster register

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

  • 25/07173/FULL Granted

    Ellerton House 11 Bryanston Square London W1H 2DQ

    Replacement of the existing timber pergola over the rear terrace with new. Linked with 25/07174/LBC (Retrospective)

    Decided 13 Nov 2025 Full applications

Timeline

Dates from the published record

  1. 6 Oct 2025

    Received by Westminster

  2. 13 Nov 2025

    Decision issued: Application Permitted

  3. 21 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/07173/FULL Granted

    Ellerton House 11 Bryanston Square London W1H 2DQ

    Replacement of the existing timber pergola over the rear terrace with new. Linked with 25/07174/LBC (Retrospective)

    Decided 13 Nov 2025 Full applications

1 later application on the register refers to this one:

  • 25/07173/FULL Granted

    Ellerton House 11 Bryanston Square London W1H 2DQ

    Replacement of the existing timber pergola over the rear terrace with new. Linked with 25/07174/LBC (Retrospective)

    Decided 13 Nov 2025 Full applications

Who's behind it

Company information only, from the register and Companies House

HDA Architecture Agent, an architecture practice registered in London

Active · incorporated 2019 · London

17 applications on PlanIndex · across 7 councils · 71% 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

11 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 13 November 2025, 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

  • Ellerton House 11 Bryanston Square London W1H 2DQ

    25/07173/FULL Submitted 6 Oct 2025 50 yards away

    Replacement of the existing timber pergola over the rear terrace with new. Linked with 25/07174/LBC (Retrospective)

    Granted Full applications 14 docs

  • 9 Montagu Mews West London W1H 2EE

    26/02315/FULL Submitted 8 Apr 2026 50 yards away

    87% historically approved · decision due ~10 Jun

    Installation of air conditioning condenser unit and acoustic enclosure to roof.

    Awaiting decision Full applications 23 docs

  • 8 Montagu Mews West London W1H 2EE

    26/03228/FULL Submitted 15 May 2026 50 yards away

    87% historically approved · decision due ~10 Jul

    Roof extension, installation of air conditioning unit in an acoustic enclosure, alterations to the front and rear facades and associated works.

    Awaiting decision Full applications Extension 28 docs

  • Flat 1 49 Montagu Square London W1H 2LW

    25/05705/FULL Submitted 14 Aug 2025 50 yards away

    Replacement of existing single glazed sash timber windows and frames with new double glazed sash timber windows and frames - 5 windows on the front elevation. (Linked with 25/05706/LBC)

    Granted Full applications Windows or glazing 24 docs

  • Flat 1 49 Montagu Square London W1H 2LW

    25/05706/LBC Submitted 14 Aug 2025 50 yards away

    Replacement of existing single glazed sash timber windows and frames with new double glazed sash timber windows and frames - 5 windows on the front elevation. (Linked with 25/05705/FULL)

    Granted Heritage and listed buildings Windows or glazing 20 docs

  • 50 Montagu Square London W1H 2LW

    26/04360/LBC Submitted 1 Jul 2026 50 yards away

    90% historically approved · decision due ~26 Aug

    Replacement of areas of roof covering with slate tiles to match existing, and replacement of localised areas of flashing to the roof.

    Awaiting decision Heritage and listed buildings Roofing

In Westminster

  • 26/04878/LBC Decided

    34 Grosvenor Street London W1K 4QU

    Internal works to facilitate the subdivision of 34 Grosvenor Street and 3 Three Kings Yard

    Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
  • 26/06299/LBC Awaiting decision

    Apartment 33 24 Park Crescent London W1B 1AA

    Alterations to internal partitions, door openings, doors and floor finishes.

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/06305/LBC Awaiting decision

    33A Dean Street London W1D 4PP

    Installation of new concrete slab with drainage channels at basement level and new fire surround in B.01.

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/06318/LBC 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 26/06317/FULL)

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/04141/LBC Decided

    80E Randolph Avenue London W9 1BG

    Replacement of sashes in two front windows at 2nd floor level and one rear window with slimline double glazed timber sashes. (Linked with 26/04142/FULL)

    Received 23 Jun, published by the council 21 Jul 2026 Heritage and listed buildings