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Planning application

8 Oldbury Place London W1U 5PG

Granted Westminster 25/07559/FULL Full Planning Permission Application

Works: Extension Loft or dormer Small domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Construction of a new mansard extension to the existing mews house together with the introduction of a new internal lightwell to basement level and single storey ground floor rear extension.

As published by the council, reference 25/07559/FULL

Application record

Reference
25/07559/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
20 Oct 2025
Validated
21 Oct 2025
Decided
20 Feb 2026
Ward
Marylebone
Decision by
Delegated Decision
Postcode
W1U 5PG

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2022: 2 approved, 0 refused.

  • 22/01428/FULL Granted

    8 Oldbury Place London W1U 5PG

    Construction of a new mansard extension to the existing mews house together with the introduction of a new internal lightwell to basement level and single storey ground floor rear extension.

    Decided 10 Aug 2022 Full applications

Timeline

Dates from the published record

  1. 20 Oct 2025

    Received by Westminster

  2. 21 Oct 2025

    Validated

    Checked as complete and ready for consideration.

  3. 20 Feb 2026

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Syte Architects Ltd Agent, an architecture practice registered in London

Active · incorporated 2002 · London

16 applications on PlanIndex · across 5 councils · 88% granted

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Documents

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

32 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 20 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

  • 8 Oldbury Place London W1U 5PG

    22/01428/FULL Submitted 2 Mar 2022 50 yards away

    Construction of a new mansard extension to the existing mews house together with the introduction of a new internal lightwell to basement level and single storey ground floor rear extension.

    Granted Full applications Extension Loft or dormer 23 docs
    Small domestic

  • Flat 5 36 Nottingham Place London W1U 5NT

    26/05917/FULL Submitted 28 Aug 2026 50 yards away

    88% historically approved · decision due ~13 Nov

    Replacing existing windows with new windows

    Decided Full applications Windows or glazing

  • 1 Oldbury Place London W1U 5PA

    26/04768/FULL Submitted 16 Jul 2026 50 yards away

    88% historically approved · decision due ~10 Sep

    Erection of a mansard roof extension to the existing dwellinghouse (Class C3), together with associated fenestration alterations.

    Decided Full applications Extension Loft or dormer +1
    Domestic

  • The Princess Grace Hospital 42 - 52 Nottingham Place London W1U 5NY

    26/03031/TELNOT Submitted 24 Apr 2026 50 yards away

    89% historically approved · decision due ~6 Jul

    The proposed works comprise of the installation of two antenna frames supporting four antennas on offset brackets, one supporting pole supporting two antennas, along with cabinet platform supporting four equipment cabinets and antically development thereto including twentyfour Remote Radio Units (RRU's) and 1.1m handrailing to be installed.

    Awaiting decision 5 docs

  • The Princess Grace Hospital 42 - 52 Nottingham Place London W1U 5NY

    26/02734/FULL Submitted 24 Apr 2026 50 yards away

    88% historically approved · decision due ~19 Jun

    Relocation of existing plant and installation of new ATS plantroom at roof level with associated services route, cable ladder and louvres at rear to new ground floor substation (Oldbury Place).

    Awaiting decision Full applications 18 docs

  • St Marylebone Church Of England School 63 - 64 Marylebone High Street London W1U 5BA

    25/09154/FULL Submitted 18 Dec 2025 50 yards away

    Installation of solar Photovoltaic (PV) panels on the low mansard roof section of the 1960s C block building.

    Granted Full applications Loft or dormer 23 docs

In Westminster

  • 26/07528/FULL Awaiting decision

    69 Eaton Place London SW1X 8DF

    Installation of new cast iron water pipe on rear courtyard elevation. (Linked with 26/07529/LBC)

    Received 5 Nov, published by the council 6 Nov 2026 Full applications
  • 26/05200/FULL Decided

    1 The Court House 165 Seymour Place London W1H 4PU

    Installation of waterproofing system to the existing lead flat roofs

    Received 3 Aug, published by the council 28 Aug 2026 Full applications
  • 26/07521/FULL Awaiting decision

    Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ

    Installation of one external condenser unit

    Received 4 Nov, published by the council 6 Nov 2026 Full applications
  • 26/07508/FULL 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 26/07509/LBC)

    Received 4 Nov, published by the council 5 Nov 2026 Full applications
  • 26/07472/FULL Awaiting decision

    Flat 3 82 New Cavendish Street London W1G 9TA

    Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)

    Received 3 Nov, published by the council 6 Nov 2026 Full applications