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Planning application

129 Randolph Avenue London W9 1DN

Granted Westminster 25/05523/FULL Full Planning Permission Application

Works: Extension Windows or glazing 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

Erection of a single storey rear extension with green roof and skylight at lower ground floor level; alterations to lower ground floor side windows and doors; replacement of existing windows with double glazed windows to match existing; and associated works.

As published by the council, reference 25/05523/FULL

Application record

Reference
25/05523/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
7 Aug 2025
Validated
15 Aug 2025
Decided
8 Oct 2025
Ward
Maida Vale
Decision by
Delegated Decision
Postcode
W9 1DN

Site history

Applications at this address on the Westminster register

This site has had 5 applications since 2025: 1 approved, 2 refused.

  • 26/04168/FULL Awaiting decision

    129 Randolph Avenue London W9 1DN

    Replacement of existing front boundary wall with new London Stock wall and Wrought Iron entrance gate spanning between two new brick piers to match the height of the pier shared with 127 Randolph Avenue.

    Submitted 24 Jun 2026 Full applications
  • 26/01889/FULL Awaiting decision

    129 Randolph Avenue London W9 1DN

    Replacement of existing front boundary wall with new London Stock walls and Wrought Iron railings and access door and bin store.

    Submitted 23 Mar 2026 Full applications
  • 25/07958/NMA Refused

    129 Randolph Avenue London W9 1DN

    Amendments to planning permission dated 08 October 2025 (RN: 25/05523/FULL) for the: NAMELY, to allow the provision of an opaque timber-framed glazed panel along the side elevation of rear extension and formation of new sash window on the side elevation at lower ground floor level.

    Decided 21 Nov 2025 Amendments
  • 25/06019/FULL Refused

    129 Randolph Avenue London W9 1DN

    Variation of condition 1 of planning permission dated 16th July 2025 (RN:25/02409/FULL) for the Erection of dormers to the rear and side slopes, installation of skylight to the roof crown and one small conservation rooflight to the side roofslope. Namely, to amend the size of the side dormer.

    Decided 23 Oct 2025 Full applications

Timeline

Dates from the published record

  1. 7 Aug 2025

    Received by Westminster

  2. 15 Aug 2025

    Validated

    Checked as complete and ready for consideration.

  3. 8 Oct 2025

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 25/07958/NMA Refused

    129 Randolph Avenue London W9 1DN

    Amendments to planning permission dated 08 October 2025 (RN: 25/05523/FULL) for the: NAMELY, to allow the provision of an opaque timber-framed glazed panel along the side elevation of rear extension and formation of new sash window on the side elevation at lower ground floor level.

    Decided 21 Nov 2025 Amendments

Who's behind it

Company information only, from the register and Companies House

Mida Architecture Ltd Agent, an architecture practice registered in London

Active · incorporated 2017 · London

10 applications on PlanIndex · across 5 councils

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

28 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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Open the documents

What this grant of permission means

Westminster granted permission on 8 October 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 0.3 miles

  • 129 Randolph Avenue London W9 1DN

    26/01889/FULL Submitted 23 Mar 2026 50 yards away

    88% historically approved · decision due ~9 Jun

    Replacement of existing front boundary wall with new London Stock walls and Wrought Iron railings and access door and bin store.

    Awaiting decision Full applications 14 docs
    Small domestic

  • 129 Randolph Avenue London W9 1DN

    25/07958/NMA Submitted 3 Nov 2025 50 yards away

    Amendments to planning permission dated 08 October 2025 (RN: 25/05523/FULL) for the: NAMELY, to allow the provision of an opaque timber-framed glazed panel along the side elevation of rear extension and formation of new sash window on the side elevation at lower ground floor level.

    Refused Amendments Extension Windows or glazing 9 docs

  • 129 Randolph Avenue London W9 1DN

    25/06019/FULL Submitted 22 Aug 2025 50 yards away

    Variation of condition 1 of planning permission dated 16th July 2025 (RN:25/02409/FULL) for the Erection of dormers to the rear and side slopes, installation of skylight to the roof crown and one small conservation rooflight to the side roofslope. Namely, to amend the size of the side dormer.

    Refused Full applications Loft or dormer 25 docs

  • 137 Randolph Avenue London W9 1DN

    25/07510/TCA Submitted 16 Oct 2025 50 yards away

    1 x Bay (T1). Whole crown reduction, including reducing the overall height by approximately 5m, and reducing the radius of the crown by approximately 1m.

    Granted Trees 4 docs

  • 129 Randolph Avenue London W9 1DN

    26/04168/FULL Submitted 24 Jun 2026 50 yards away

    88% historically approved · decision due ~15 Sep

    Replacement of existing front boundary wall with new London Stock wall and Wrought Iron entrance gate spanning between two new brick piers to match the height of the pier shared with 127 Randolph Avenue.

    Awaiting decision Full applications 11 docs
    Small domestic

  • 123 Randolph Avenue London W9 1DN

    22/03231/FULL Submitted 13 May 2022 50 yards away

    Excavation of front garden and vault to provide single storey infill extension at lower ground floor level and associated works.

    Granted Full applications Extension 10 docs
    Small domestic

In Westminster

  • 26/06015/FULL Decided

    129 Saltram Crescent London W9 3JT

    Erection of a two-storey rear extension.

    Received 3 Sep, published by the council 11 Sep 2026 Full applications
  • 26/05689/FULL Decided

    Flat 1 12 Bristol Gardens London W9 2JG

    Demolition of an existing conservatory at the rear at lower ground level and erection of single storey rear extension.

    Received 19 Aug, published by the council 14 Sep 2026 Full applications
  • 26/07340/FULL Awaiting decision

    123 Victoria Street London SW1E 6DE

    Installation of a single-leaf glazed entrance door at ground level to the Victoria Street frontage

    Received 27 Oct, published by the council 30 Oct 2026 Full applications
  • 26/07315/FULL Awaiting decision

    30 Inverness Terrace London W2 3JA

    Relocation of air conditioning units throughout to the lower ground floor lightwells within aluminium enclosure; replacement of all pipes with cast iron pipes; alteration to balconies including replacement of UPVC door with original door arrangement and replacement railing; reopening of previously infilled windows; replacement marble tiles at hallway of No.32 with Victorian floor tiles; replacement of all doors facing the communal staircase with the correct period style doors; removal of red clay tile leanto roof at first floor rear and the roof made good; removal of link bridges to the rear of the second floor and the rear of the third floor; and reopening of previously infilled windows to the stairs lobby at ground, first and second floor to No.30. (Linked with 26/07316/LBC)

    Received 26 Oct, published by the council 27 Oct 2026 Full applications
  • 26/05708/FULL Decided

    Flat 23 Imperial Court 55 - 56 Prince Albert Road London NW8 7PT

    Replacement of existing windows and louvres.

    Received 20 Aug, published by the council 18 Sep 2026 Full applications