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Planning application

21 Conduit Mews London W2 3RE

Refused Westminster 25/06778/FULL Full Planning Permission Application

Works: Loft or dormer

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Erection of a dormer to the rear elevation.

As published by the council, reference 25/06778/FULL

Application record

Reference
25/06778/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Refused As published: Application Refused
Received
22 Sep 2025
Validated
30 Sep 2025
Decided
17 Feb 2026
Ward
Lancaster Gate
Decision by
Complex Delegated Decision
Postcode
W2 3RE

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025: 0 approved, 1 refused.

  • 26/01285/FULL Awaiting decision

    21 Conduit Mews London W2 3RE

    Erection of dormer to rear roof slope.

    Submitted 2 Mar 2026 Full applications

Timeline

Dates from the published record

  1. 22 Sep 2025

    Received by Westminster

  2. 30 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 17 Feb 2026

    Decision issued: Application Refused

  4. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

sjd Architects Ltd Agent, an architecture practice registered in Stockton-On-Tees

Active · incorporated 2003 · Stockton-On-Tees

38 applications on PlanIndex · across 8 councils · 94% granted

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Documents

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

23 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 refusal means

Westminster refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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

  • 21 Conduit Mews London W2 3RE

    26/01285/FULL Submitted 2 Mar 2026 50 yards away

    87% historically approved · decision due ~27 Apr

    Erection of dormer to rear roof slope.

    Awaiting decision Full applications Loft or dormer 5 docs

  • Flat G 13 Westbourne Terrace London W2 3UL

    26/02711/LBC Submitted 23 Apr 2026 50 yards away

    90% historically approved · decision due ~18 Jun

    Replacement of single-glazed timber sliding sash windows with vacuum-glazed timber sliding sash windows. (Linked with 26/02710/FULL)

    Awaiting decision Heritage and listed buildings Windows or glazing 1 doc

  • Flat G 13 Westbourne Terrace London W2 3UL

    26/02710/FULL Submitted 23 Apr 2026 50 yards away

    87% historically approved · decision due ~18 Jun

    Replacement of single-glazed timber sliding sash windows with vacuum-glazed timber sliding sash windows. (Linked with 26/02711/LBC)

    Awaiting decision Full applications Windows or glazing 9 docs

  • 196 - 200 Sussex Gardens London W2 3UA

    26/03421/FULL Submitted 26 May 2026 50 yards away

    87% historically approved · decision due ~23 Jul

    Underpinning to basement and front elevations inlcuding repair works; Replacement concrete stairs and steel balustrades in lightwell; New concrete floor slab, build up; and other associated works. Linked with 26/03422/LBC

    Awaiting decision Full applications 14 docs

  • 196 - 200 Sussex Gardens London W2 3UA

    26/03422/LBC Submitted 26 May 2026 50 yards away

    90% historically approved · decision due ~23 Jul

    Underpinning to basement and front elevations inlcuding repair works; Replacement concrete stairs and steel balustrades in lightwell; New concrete floor slab, build up; and other associated works. Linked with 26/03421/FULL

    Awaiting decision Heritage and listed buildings 14 docs

  • Basement And Ground Floor 2 Spring Street London W2 3RA

    26/06228/ADV Submitted 9 Sep 2026 50 yards away

    84% historically approved · decision due ~10 Nov

    Display of externally illuminated projection sign measuring 600mm x 600mm, and retention of externally illuminated fascia sign (Linked with 26/05931/LBC)

    Awaiting decision Advertising

In Westminster

  • 26/06295/FULL Awaiting decision

    15 Warwick Way London SW1V 1QT

    Installation of a new shopfront with Medication Dispensing Outlet.

    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 replacement window and installation of double opening door.

    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06294/FULL Awaiting decision

    15 Eaton Mews South London SW1W 9HP

    Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06317/FULL 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 26/06318/LBC)

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06273/FULL Awaiting decision

    9A Grosvenor Square London W1K 5AE

    Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

    Received 14 Sep, published by the council 22 Sep 2026 Full applications