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Planning application

10 Trevelyan Crescent, Harrow, HA3 0RL

Refused Brent 21/0691 Certificate of Lawfulness - Proposed

Works: Extension Small 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 single storey rear extension to dwellinghouse.

As published by the council, reference 21/0691

Application record

Reference
21/0691
Type
Certificate of Lawfulness - Proposed
Status
Decided
Decision
Certificate of Lawfulness - Refused
Received
25 Feb 2021
Validated
25 Feb 2021
Decided
22 Apr 2021
Ward
Kenton
Decision by
Delegated Team Manager
Postcode
HA3 0RL

Site history

Applications at this address on the Brent register

This site has had 4 applications since 2021: 1 approved, 3 refused.

  • 21/1982 Granted

    10 Trevelyan Crescent, Harrow, HA3 0RL

    Single storey side extension to dwellinghouse.

    Decided 30 Jul 2021 Householder
  • 21/1936 Refused

    10 Trevelyan Crescent, Harrow, HA3 0RL

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

    Decided 20 Jul 2021 Lawful development
  • 21/0684 Refused

    10 Trevelyan Crescent, Harrow, HA3 0RL

    Proposed front porch, alterations and insertion of new windows on front elevation and partial double storey extension to the dwellinghouse (revised description)

    Decided 22 Apr 2021 Householder

Timeline

Dates from the published record

  1. 25 Feb 2021

    Received by Brent

  2. 22 Apr 2021

    Decision issued: Certificate of Lawfulness - Refused

  3. 20 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice

13 applications on PlanIndex · across 7 councils

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Documents

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

9 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

Brent 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 lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 20 Trevelyan Crescent, Harrow, HA3 0RL

    23/0408 Submitted 6 Feb 2023 0m away

    Proposed erection of two-storey rear extension and alterations to patio to dwellinghouse

    Granted Householder Extension 7 docs
    Domestic

  • 32 Trevelyan Crescent, Harrow, HA3 0RL

    20/3822 Submitted 23 Nov 2020 0m away

    Proposed alterations to front garden landscaping, formation of one additional off street parking space, and widening of existing cross over to dwellinghouse.

    Refused Householder 10 docs
    Domestic

  • 40 Trevelyan Crescent, Harrow, HA3 0RL

    20/3687 Submitted 12 Nov 2020 0m away

    Proposed replacement of front windows, porch door and roof tiles to dwellinghouse

    Granted Householder Extension Roofing +1 5 docs
    Small domestic

  • 42 Trevelyan Crescent, Harrow, HA3 0RL

    25/2720 Submitted 24 Sep 2025 0m away

    Removal of Magnolia tree from front garden.

    Granted Trees 2 docs

  • 10 Trevelyan Crescent, Harrow, HA3 0RL

    21/1982 Submitted 26 May 2021 0m away

    Single storey side extension to dwellinghouse.

    Granted Householder Extension 8 docs
    Small domestic

  • 10 Trevelyan Crescent, Harrow, HA3 0RL

    21/1936 Submitted 25 May 2021 0m away

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

    Refused Lawful development Extension 8 docs
    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