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Planning application

23 Lancaster Road, London, NW10 1HD

Refused Brent 25/3421 Certificate of Lawfulness - Proposed

Works: Extension Loft or dormer Windows or glazing Domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Certificate of lawfulness for proposed rear dormer extension with juliet balcony, alteration to rear elevation fenestration and 3x front rooflights to dwellinghouse

As published by the council, reference 25/3421

Application record

Reference
25/3421
Type
Certificate of Lawfulness - Proposed
Status
Decided
Decision
Certificate of Lawfulness - Refused
Received
9 Dec 2025
Validated
9 Dec 2025
Decided
23 Jan 2026
Ward
Willesden Green
Decision by
Delegated Team Manager
Postcode
NW10 1HD

Timeline

Dates from the published record

  1. 9 Dec 2025

    Received by Brent

  2. 23 Jan 2026

    Decision issued: Certificate of Lawfulness - Refused

  3. 10 Aug 2026

    Added to PlanIndex

Documents

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

17 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.

Trade members open them from here.

Open the documents

What refusal means

The process from here

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 15 Geary Road, London, NW10 1HE

    26/1168 Submitted 8 May 2026 46m away

    Demolition of existing rear extension and proposed single storey rear extension to the dwellinghouse

    Granted Householder Extension Demolition 11 docs
    Small domestic

  • 9 Kendal Road, London, NW10 1JH

    21/0082 Submitted 8 Jan 2021 51m away

    Certificate of lawfulness for proposed single storey rear extension, refurbishment of existing dormer and installation of front rooflights to dwellinghouse.

    Granted Lawful development Extension Loft or dormer 10 docs
    Small domestic

  • 5 Kendal Road, London, NW10 1JH

    20/3401 Submitted 21 Oct 2020 51m away

    Certificate of lawfulness for proposed loft conversion with rear dormer window and three front rooflights to dwellinghouse.

    Granted Lawful development Loft or dormer Windows or glazing 12 docs
    Domestic

  • 15 Kendal Road, London, NW10 1JH

    20/2573 Submitted 21 Aug 2020 51m away

    Certificate of lawfulness for proposed loft conversion with rear dormer window with juliet balcony and insertion of 3 x front rooflights over main roof, 2 x front rooflights over bay window roof and 1 x rear rooflight to dwellinghouse.

    Granted Lawful development Loft or dormer Windows or glazing 12 docs
    Domestic

  • 14 Fleetwood Road, London, NW10 1ND

    21/1484 Submitted 22 Apr 2021 78m away

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 4.09m Maximum height - 3.72m Eaves height - 3m

    Refused Prior approval Extension 6 docs
    Small domestic

  • 62 Hamilton Road, London, NW10 1NG

    26/1065 Submitted 27 Apr 2026 94m away

    79% historically approved · decision due ~31 Aug

    Certificate of lawfulness for existing single storey rear extension to the dwellinghouse.

    Awaiting decision Extension
    Small domestic

In Brent

  • 26/0783 Granted

    3 Hamilton Road, London, NW10 1NU

    Certificate of lawfulness for existing single-storey rear extension to dwellinghouse

    26 Mar 2026 Lawful development
  • 26/1946 Awaiting decision

    120 Gladstone Park Gardens, London, NW2 6RL

    Certificate of lawfulness for proposed rear dormer extension with Juliet balcony, hip to gable roof extension, installation of 1x window to side elevation and 2x front rooflights to dwellinghouse.

    30 Jul 2026 Lawful development
  • 26/1208 Granted

    50 Ballogie Avenue, London, NW10 1TA

    Certificate of lawfulness for proposed rear dormer extension, hip to gable roof extension, alteration to fenestration and installation of rooflights to the dwellinghouse

    13 May 2026 Lawful development
  • 26/1015 Refused

    5 Midholm, Wembley, HA9 9LJ

    Certificate of lawfulness for proposed installation of solar panels to the side and rear roofslope of the dwellinghouse.

    23 Apr 2026 Lawful development
  • 26/1176 Refused

    47 Barn Rise, Wembley, HA9 9NH

    Certificate of lawfulness for proposed single storey outbuilding in rear garden of the dwellinghouse.

    11 May 2026 Lawful development