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Planning application

63 Blandford Street City Of Westminster London W1U 7HR

Granted Westminster 25/04451/FULL Full Planning Permission Application

Works: Extension Roofing Windows or glazing

Relates to 25/04452/LBC

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

Proposal

Erection of mono-pitched and sheer roof extension to rear with two sash windows and a single timber door to the rear, raise chimney height by 330mm, installation of six over six pane slimline double glazed timber sash windows and installation of new roof top photovoltaic panels and associated internal alterations. (Linked to 25/04452/LBC)

As published by the council, reference 25/04451/FULL

Application record

Reference
25/04451/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Application Permitted
Received
27 Jun 2025
Validated
5 Aug 2025
Decided
3 Nov 2025
Ward
Marylebone
Decision by
Sub-Committee
Postcode
W1U 7HR

Site history

Applications at this address on the Westminster register

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

  • 25/04452/LBC Granted

    63 Blandford Street City Of Westminster London W1U 7HR

    Erection of mono-pitched and sheer roof extension to rear with two sash windows and a single timber door to the rear, raise chimney height by 330mm, installation of six over six pane slimline double glazed timber sash windows and installation of new roof top photovoltaic panels and associated internal alterations. (Linked to 25/04451/FULL)

    Decided 3 Nov 2025 Heritage and listed buildings

Timeline

Dates from the published record

  1. 27 Jun 2025

    Received by Westminster

  2. 5 Aug 2025

    Validated

    Checked as complete and ready for consideration.

  3. 3 Nov 2025

    Decision issued: Application Permitted

  4. 30 Aug 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 25/04452/LBC Granted

    63 Blandford Street City Of Westminster London W1U 7HR

    Erection of mono-pitched and sheer roof extension to rear with two sash windows and a single timber door to the rear, raise chimney height by 330mm, installation of six over six pane slimline double glazed timber sash windows and installation of new roof top photovoltaic panels and associated internal alterations. (Linked to 25/04451/FULL)

    Decided 3 Nov 2025 Heritage and listed buildings

1 later application on the register refers to this one:

  • 25/04452/LBC Granted

    63 Blandford Street City Of Westminster London W1U 7HR

    Erection of mono-pitched and sheer roof extension to rear with two sash windows and a single timber door to the rear, raise chimney height by 330mm, installation of six over six pane slimline double glazed timber sash windows and installation of new roof top photovoltaic panels and associated internal alterations. (Linked to 25/04451/FULL)

    Decided 3 Nov 2025 Heritage and listed buildings

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice registered in London

17 applications on PlanIndex · across 5 councils · 100% granted

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Documents

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

33 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 3 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 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 500 metres

  • 63 Blandford Street London W1U 7HR

    25/04450/LBC Submitted 27 Jun 2025 0m away

    Erection of mansard roof extension with three new front dormers, one dormer window (replace existing) and one dormer door to the rear, raising height of chimney by 330mm, installation of 6 over 6 pane slimline double glazed timber sash windows, installation of photovoltaic panels at roof level (Linked to 25/04449/FULL)

    Granted Heritage and listed buildings Extension Loft or dormer +1 33 docs

  • 63 Blandford Street City Of Westminster London W1U 7HR

    25/04452/LBC Submitted 27 Jun 2025 0m away

    Erection of mono-pitched and sheer roof extension to rear with two sash windows and a single timber door to the rear, raise chimney height by 330mm, installation of six over six pane slimline double glazed timber sash windows and installation of new roof top photovoltaic panels and associated internal alterations. (Linked to 25/04451/FULL)

    Granted Heritage and listed buildings Extension Roofing +1 31 docs

  • 63 Blandford Street London W1U 7HR

    25/04449/FULL Submitted 27 Jun 2025 1m away

    Erection of mansard roof extension with three new front dormers, two rear dormers (one dormer window and one dormer door), raising height of chimney by 330mm, installation of 6 over 6 pane slimline double glazed timber sash windows, installation of photovoltaic panels at roof level. (Linked to 25/04450/LBC)

    Granted Full applications Extension Loft or dormer +1 32 docs

  • 63 Blandford Street London W1U 7HR

    26/05078/ADFULL Submitted 28 Jul 2026 6m away

    87% historically approved · decision due ~22 Sep

    Details of written photographic specification of the materials; exterior of the new extension; new windows, rooflights, and doors; new roof balustrade to rear; and new solar panels pursuant to conditions 4 and 5 of planning permission dated 03 November 2025 (RN: 25/04449/FULL).

    Awaiting decision Full applications Extension Loft or dormer +2 10 docs

  • 22 Baker Street London W1U 3BW

    22/05111/ADFULL Submitted 27 Jul 2022 41m away

    Details pursuant to Condition 5 & 6 of planning permission dated 22nd April 2022 (RN: 22/01420/FULL), namely the submission of details drawings of the rooflights and PV panels at main roof level.

    Granted Full applications Loft or dormer 9 docs

  • 58 Blandford Street London W1U 7JB

    25/08843/ADV Submitted 5 Dec 2025 41m away

    Display of non-illuminated vinyls applied to windows at no.58 no. 60 and no.62 for a temporary period till 28 February 2026 (Retrospective).

    Granted Advertising Windows or glazing 6 docs

In Westminster

  • 26/06024/FULL Awaiting decision

    House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

    Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06025/LBC)

    3 Sep 2026 Full applications
  • 26/06017/FULL Awaiting decision

    38 Lauderdale Mansions Lauderdale Road London W9 1NE

    Installation of an external AC Unit / Heat Pump at roof level.

    2 Sep 2026 Full applications
  • 26/05938/FULL Awaiting decision

    24 Vincent Square London SW1P 2NJ

    Subdivision of existing residential property to create two self-contained 3-bedroom family homes, along with cycle parking and associated external alterations.

    1 Sep 2026 Full applications
  • 26/05935/FULL Awaiting decision

    47 Hereford Road London W2 5AH

    Installation of one number new external condenser unit to the southerly elevation service alley.

    1 Sep 2026 Full applications
  • 26/05959/FULL Awaiting decision

    Basement And Ground Floor 50 New Bond Street London W1S 1BJ

    Installation of three new condensers on the roof, within an existing designated plant area.

    1 Sep 2026 Full applications