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Planning application

26/0541

138 Walm Lane, London, NW2 4RU

Awaiting decision Brent Full Planning Permission

Proposal

Proposed basement extension, conversion of dwellinghouse into 5x self contained flats, rear dormer with juliet balcony, dormer to rear outrigger with side juliet balcony, replacement of existing timber sash windows with double glazed timber sash windows to front elevation and first-floor rear juliet balcony to dwellinghouse.

As published by the council, reference 26/0541

Timeline

Dates from the published record

  1. 3 Mar 2026

    Received by Brent

  2. 20 Apr 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Brent for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 26/1393 Awaiting decision

    142 Walm Lane, London, NW2 4RU

    Proposed installation of automated vehicular sliding gate and pedestrian gate along front boundary and enlargement of existing dropped kerb to dwellinghouse.

    4 Jun 2026 0m away Householder
  • 25/2916 Granted

    156 Walm Lane, London, NW2 4RU

    Proposed new front boundary wall, refuse storage and alterations to front hard and soft landscaping to dwellinghouse

    15 Oct 2025 0m away Householder
  • 24/1603 Granted

    142 Walm Lane, London, NW2 4RU

    Installation of x5 external air conditioning inverter units to front, side and rear elevations of dwellinghouse.

    11 Jun 2024 0m away Householder
  • 20/3823 Granted

    89 Walm Lane, London, NW2 4QG

    Retain existing communal storage in rear garden

    23 Nov 2020 41m away Householder
  • 22/3674 Refused

    87A-H, Walm Lane, London, NW2 4QL

    Erection of a single storey rear/side extension to create a self-contained dwelling, alterations to fenestration to Flats B and F, provision for cycle storage and associated landscaping

    25 Oct 2022 95m away Full applications
  • 24/1693 Refused

    19 Stanley Gardens, London, NW2 4QH

    Conversion into 2 self-contained flats and works to include a single storey rear and side infill extension, alterations to rear roof and outrigger to create roof terrace with associated screening and access, alteration to front boundary wall, provision of cycle and refuse storage

    18 Jun 2024 117m away Full applications

In Brent

  • 26/1435 Granted

    202A Preston Road, Wembley, HA9 8PA

    Proposed rear dormer extension, installation of rooflights and alteration to entryway to the first floor flat.

    9 Jun 2026 Full applications
  • 26/1315 Refused

    1 & 2 Zyad Close, London, NW10 9BB

    Joint application for proposed erection of 1x new storey to roof of 2x existing two-storey dwellinghouses

    25 May 2026 Full applications
  • 26/0820 Granted

    105 Dollis Hill Lane, London, NW2 6HS

    Proposed rear dormer extension, hip to gable roof extension, new pitched roof to first floor and installation of rooflights to the dwellinghouse.

    30 Mar 2026 Full applications
  • 26/0529 Refused

    24 Staverton Road, London, NW2 5HL

    Proposed single-storey rear extension, raised patio decking and outbuilding in the rear garden of the ground floor flat

    1 Mar 2026 Full applications
  • 26/1367 Granted

    69, 71, 73 & 75 Goldsmith Lane, London, NW9 9AR

    Installation of a new rainwater hopper and down pipe to the front elevation of building

    1 Jun 2026 Full applications