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Planning application

25 South Western Road Twickenham TW1 1LG

Refused Richmond upon Thames PA25/3596 Householder Application

Works: Loft or dormer 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

L-shaped rear dormer

As published by the council, reference PA25/3596

Application record

Reference
PA25/3596
Type
Householder Application
Status
Decided
Decision
Refused Permission
Received
10 Oct 2025
Validated
28 Nov 2025
Decided
16 Jan 2026
Ward
St. Margarets & North Twickenham Ward [SMN]
Decision by
Delegated Decision
Postcode
TW1 1LG

Site history

Applications at this address on the Richmond upon Thames register

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

  • PA26/0335 Granted

    25 South Western Road Twickenham TW1 1LG

    Rear dormer roof extension above rear roof slope and outrigger (Retrospective)

    Decided 31 Mar 2026 Householder

Timeline

Dates from the published record

  1. 10 Oct 2025

    Received by Richmond upon Thames

  2. 28 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 16 Jan 2026

    Decision issued: Refused Permission

  4. 13 Aug 2026

    Added to PlanIndex

Documents

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

10 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 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

  • 25 South Western Road Twickenham TW1 1LG

    PA26/0335 Submitted 2 Feb 2026 4m away

    Rear dormer roof extension above rear roof slope and outrigger (Retrospective)

    Granted Householder Extension Loft or dormer 13 docs
    Domestic

  • 27 South Western Road Twickenham TW1 1LG

    21/1546/HOT Submitted 30 Apr 2021 6m away

    Proposed ground floor rear wraparound, rear dormer roof extension above outrigger to form an additional bedroom, floor plan redesign and all associated works.

    Granted Householder Extension Loft or dormer 19 docs
    Domestic

  • 31, South Western Road, Twickenham, TW1 1LG

    PA26/0492 Submitted 13 Feb 2026 15m away

    Proposed front bay window and single storey rear extension.

    Granted Householder Extension Windows or glazing 8 docs
    Small domestic

  • 33 South Western Road Twickenham Richmond Upon Thames TW1 1LG

    06/1258/HOT Submitted 20 Apr 2006 23m away

    Proposed Single Storey Rear Extension.

    Withdrawn Householder Extension 10 docs
    Small domestic

  • 37 South Western Road Twickenham TW1 1LG

    PA25/4183 Submitted 20 Nov 2025 31m away

    Hip to gable loft conversion, involving rear dormer and rear outrigger extension. The proposal includes the addition of two rooflights to the front elevation, a rooflight to the outrigger, three new windows and the removal of the chimney stacks to the main roof

    Granted Prior approval Extension Loft or dormer +1 21 docs

  • 37 South Western Road Twickenham TW1 1LG

    PA25/4056 Submitted 10 Nov 2025 31m away

    Ground floor side and rear extension, including a pitched slate roof with 5 x rooflights and metal glazed doors to the rear elevation. Adding pitched roof over the approved first floor rear extension to match the roof design of the adjoining property. Replacement/ Enlargement of existing UPVC/ timber fenestration to front, side and rear elevation with timber sash windows.

    Granted Householder Extension Loft or dormer +2 24 docs
    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