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Planning application

15 Alexander Avenue, London, NW10 3QT

Granted Brent 26/0965 Householder

Works: Extension Loft or dormer Roofing 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

Proposed part single part two-storey rear extension with 2x lantern rooflights and first floor Juliet balcony, rear basement extension, two-storey front extension, first floor front balcony and alterations to front bay windows, 2x hip to gable roof extensions, rear dormer extension with 3x Juliet balconies, replacement of roof tiles, 4x front rooflights, conversion of garage into store room, rendering to all elevations, brickwork to ground floor front elevation, alterations to fenestration, raised decking to rear, alteration to front boundary wall and hard and soft landscaping to front drive and rear garden of dwellinghouse.

As published by the council, reference 26/0965

Application record

Reference
26/0965
Type
Householder
Status
Decided
Decision
Granted As published: Permission Granted
Received
17 Apr 2026
Validated
5 May 2026
Decided
4 Aug 2026
Ward
Brondesbury Park
Decision by
Delegated Team Manager
Postcode
NW10 3QT

Site history

Applications at this address on the Brent register

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

  • 25/2666 Refused

    15 Alexander Avenue, London, NW10 3QT

    Proposed demolition of rear outbuilding, erection of part single part two-storey rear extension with x2 lantern rooflights and first floor juliet balcony, basement extension and lowering of ground level at front to accommodate garage at basement level, two-storey front extension, first floor front balcony and alterations to front bay windows, x2 hip to gable roof extensions, rear dormer with x3 juliet balconies, replacement of roof tiles, x4 front rooflights, rendering to all elevations, brickwork to ground floor front elevation, alterations to fenestration, raised decking to rear, alteration to front boundary wall and hard and soft landscaping to rear garden of dwellinghouse

    Decided 5 Jan 2026 Householder

Timeline

Dates from the published record

  1. 17 Apr 2026

    Received by Brent

  2. 5 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. 4 Aug 2026

    Decision issued: Permission Granted

Who's behind it

Company information only, from the register and Companies House

Design Spec Ltd Agent, a design practice registered in Hockley

Active · incorporated 2014 · Hockley

159 applications on PlanIndex · across 18 councils · 73% 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

10 documents on file for this application

  • Existing and proposed loft plan and topographical survey Approved Drawing Plans · 04 Aug 2026
  • Existing and proposed drawings Approved Drawing Plans · 04 Aug 2026
  • Approved planning drawings Approved Drawing Plans · 04 Aug 2026
  • Location plan, existing and proposed roof plans, 3d view and fence plan Approved Drawing Plans · 04 Aug 2026
  • Site survey Approved Drawing Plans · 04 Aug 2026
  • Final delegated report Report · 04 Aug 2026
  • Final decision notice Decision (Public) · 04 Aug 2026
  • Construction logistics plan Approved Documents · 31 Jul 2026
  • Basement impact assessment report Approved Documents · 29 Apr 2026
  • Application form redacted Application Form (Public) · 20 Apr 2026

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What this grant of permission means

Brent granted permission on 4 August 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 householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 17 Alexander Avenue, London, NW10 3QT

    21/3539 Submitted 20 Sep 2021 50 yards away

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 4m Eaves height - 3m

    Granted Prior approval Extension 4 docs
    Small domestic
  • 29 Alexander Avenue, London, NW10 3QT

    26/0586 Submitted 9 Mar 2026 50 yards away

    Proposed removal of a front brick boundary wall, addition of metal gate, railing and brick piers with soft and hard landscaping to front garden of dwellinghouse.

    Granted Householder 6 docs
    Small domestic
  • 29 Alexander Avenue, London, NW10 3QT

    26/0578 Submitted 6 Mar 2026 50 yards away

    Proposed demolition of side utility room, rear kitchen, dressing room and ensuite, erection of double storey side and rear extension, enlargement of rear dormer, repositioning of 1x front rooflight, addition of 4x side rooflights, design of a new roof, alterations to rear and side fenestration, addition of cycle storage and glass summerhouse to rear garden of the dwellinghouse.

    Granted Householder Extension Loft or dormer +3 8 docs
    Domestic
  • 3 Alexander Avenue, London, NW10 3QT

    26/0570 Submitted 6 Mar 2026 50 yards away

    Proposed demolition of existing dwellinghouse, erection of two-storey detached dwelling with basement and converted loft space, proposed pv panels to the side roof slope, addition of bin and cycle storage, soft and hard landscaping and boundary wall to front and rear garden (amended)

    Refused Full applications New dwelling Demolition 3 docs
    Small domestic
  • 27 Alexander Avenue, London, NW10 3QT

    25/3550 Submitted 19 Dec 2025 50 yards away

    Non material amendment (Alteration to side extension comprising single-storey rear extension) of Householder planning permission application reference 25/1203 dated 16/06/2025 for Proposed conversion of garage into habitable room, removal of garage door and replaced with a window, single storey side infill extension to the dwellinghouse

    Granted Amendments Extension Windows or glazing 4 docs
    Small domestic
  • 15 Alexander Avenue, London, NW10 3QT

    25/2666 Submitted 18 Sep 2025 50 yards away

    Proposed demolition of rear outbuilding, erection of part single part two-storey rear extension with x2 lantern rooflights and first floor juliet balcony, basement extension and lowering of ground level at front to accommodate garage at basement level, two-storey front extension, first floor front balcony and alterations to front bay windows, x2 hip to gable roof extensions, rear dormer with x3 juliet balconies, replacement of roof tiles, x4 front rooflights, rendering to all elevations, brickwork to ground floor front elevation, alterations to fenestration, raised decking to rear, alteration to front boundary wall and hard and soft landscaping to rear garden of dwellinghouse

    Refused Householder Extension Loft or dormer +3 7 docs
    Small domestic

In Brent

  • 26/2300 Awaiting decision

    22 Plympton Avenue, London, NW6 7TJ

    Proposed single-storey side infill extension, replacement of ground floor rear door with window, and replacement of ground floor rear windows with sliding doors to dwellinghouse

    Received 10 Sep, published by the council 21 Sep 2026 Householder
  • 26/2292 Awaiting decision

    116 Stag Lane, Edgware, HA8 5LL

    Demolition of existing side store and proposed single store side to rear extension, first floor part side and rear extension, front porch extension, hip to gable extension, rear dormer window with 4x front rooflights and removal of chimney stack to the dwellinghouse.

    Received 9 Sep, published by the council 21 Sep 2026 Householder
  • 26/2264 Awaiting decision

    19 Littleton Road, Harrow, HA1 3SY

    Proposed demolition of existing garage, single storey side extension and single storey rear extension, and erection of a two-storey side extension, part single and part two storey rear extension, 1x side and 1x rear dormer extension, conversion of garage into habitable space with replacement of garage door with window, alteration to front, rear and side fenestration and removal of chimney to dwellinghouse.

    Received 7 Sep, published by the council 21 Sep 2026 Householder
  • 26/2262 Awaiting decision

    1 Chestnut Grove, Wembley, HA0 2LX

    Demolition of existing conservatory, part two storey rear extension, single storey structure to side extension & front porch and erection of single-storey side to rear extension, erection of first floor rear extension, alterations to raised patio, addition of hipped roof to first-floor side extension, 1x front & 1x rear rooflight, replacement of roof tiles, alterations to fenestrations, rendering to elevations, front porch canopy with pillars, new front door & new garage door to dwellinghouse

    Received 7 Sep, published by the council 21 Sep 2026 Householder
  • 26/2200 Awaiting decision

    55 Wembley Park Drive, Wembley, HA9 8HE

    Conversion of garage into part morning room & utility room with replacement of front garage door with window, proposed single-storey rear extension, part single part two-storey side infill extension, rear ground extension, roof extension, 2x side dormer and 2x rear dormer extensions, installation of 2x front rooflights and raised rear patio with steps to dwellinghouse

    Received 1 Sep, published by the council 21 Sep 2026 Householder