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Planning application

12, Strathearn Avenue, Twickenham, TW2 6JU

Refused Richmond upon Thames PA25/3519 Householder Application

Works: Extension Loft or dormer Roofing 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

First Floor Side Extension, Conversion of Garage to Habitable Accommodation, Alterations to Roof including Increase in Ridge Height and Rear Dormer, Alterations to Elevations, And All Associated Works

As published by the council, reference PA25/3519

Application record

Reference
PA25/3519
Type
Householder Application
Status
Decided
Decision
Refused Permission
Received
7 Oct 2025
Validated
7 Oct 2025
Decided
1 Dec 2025
Ward
Heathfield Ward [HTF]
Decision by
Delegated Decision
Postcode
TW2 6JU

Site history

Applications at this address on the Richmond upon Thames register

This site has had 4 applications since 2025: 2 approved, 2 refused.

  • PA26/1523 Granted

    12, Strathearn Avenue, Twickenham, TW2 6JU

    Details pursuant to Condition C4 - Construction Management Plan, of planning permission PA26/0760.

    Decided 20 Aug 2026 Conditions
  • PA26/0760 Granted

    12, Strathearn Avenue, Twickenham, TW2 6JU

    Proposed garage conversion to habitable room with new flat roof over and front elevation set back.

    Decided 28 Apr 2026 Householder
  • PA25/3488 Refused

    12, Strathearn Avenue, Twickenham, TW2 6JU

    First Floor Side Extension, Conversion of Garage to Habitable Accommodation, Alterations to Elevations, And All Associated Works

    Decided 1 Dec 2025 Householder

Timeline

Dates from the published record

  1. 7 Oct 2025

    Received by Richmond upon Thames

  2. 1 Dec 2025

    Decision issued: Refused Permission

  3. 13 Aug 2026

    Added to PlanIndex

Documents

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

24 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 refusal means

Richmond upon Thames 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 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 500 metres

  • 12, Strathearn Avenue, Twickenham, TW2 6JU

    PA25/3488 Submitted 3 Oct 2025 0m away

    First Floor Side Extension, Conversion of Garage to Habitable Accommodation, Alterations to Elevations, And All Associated Works

    Refused Householder Extension 25 docs
    Domestic

  • 12, Strathearn Avenue, Twickenham, TW2 6JU

    PA26/0760 Submitted 4 Mar 2026 0m away

    Proposed garage conversion to habitable room with new flat roof over and front elevation set back.

    Granted Householder 9 docs
    Small domestic

  • 12, Strathearn Avenue, Twickenham, TW2 6JU

    PA26/1523 Submitted 5 May 2026 7m away

    Details pursuant to Condition C4 - Construction Management Plan, of planning permission PA26/0760.

    Granted Conditions 6 docs

  • 16 Strathearn Avenue Twickenham TW2 6JU

    19/3235/PDE Submitted 22 Oct 2019 23m away

    Single-storey rear extension (4m depth, 3.2m eaves height, 3.2m maximum height).

    Withdrawn Prior approval Extension 5 docs
    Small domestic

  • 18, Strathearn Avenue, Twickenham, TW2 6JU

    PA26/2746 Submitted 7 Aug 2026 30m away

    87% historically approved · decision due ~2 Oct

    Proposed loft extension with hip to gable roof extension, rear facing dormer and front facing roof windows.

    Awaiting decision Prior approval Extension Loft or dormer +1 4 docs

  • 12 Bryanston Avenue Twickenham TW2 6HP

    PA26/0960 Submitted 18 Mar 2026 66m away

    Proposed single storey side/rear extension and garage conversion

    Granted Householder Extension 15 docs
    Small domestic

In Richmond upon Thames

  • PA26/2452 Refused

    50 Fairfax Road Teddington TW11 9BZ

    Roof extension to create additional loft storey. Increase in height to eaves and ridge to part of existing roof.

    13 Jul 2026 Householder
  • PA26/3078 Awaiting decision

    64 FIRST AVENUE MORTLAKE LONDON SW14 8SR

    The demolition of the existing ground floor rear extension, construction of replacement ground floor rear extension and replacement windows to the rear of the property.

    4 Sep 2026 Householder
  • PA26/3057 Awaiting decision

    23, Manderlea, The Avenue, Hampton, TW12 3RN

    Single storey rear extension, single storey side extension, and the installation of an air conditioning unit

    3 Sep 2026 Householder
  • PA26/3068 Awaiting decision

    27 Ranelagh Avenue Barnes London SW13 0BL

    Single storey side return with a sloping rooflight. Incl replacement windows throughout.

    3 Sep 2026 Householder
  • PA26/3067 Awaiting decision

    27 Ranelagh Avenue Barnes London SW13 0BL

    Rear mansard roof extension.

    3 Sep 2026 Householder