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Planning application

26, Mayfair Avenue, Twickenham, TW2 7JG

Awaiting decision Richmond upon Thames PA26/2924 Section 192 Permitted Development

Works: Extension Loft or dormer Windows or glazing Small domestic

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

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Hip to gable loft conversion, construction of a new rear roof dormer, new rooflights to the loft and front of the property, obscure glazed window to the side elevation, new front porch.

As published by the council, reference PA26/2924

Application record

Reference
PA26/2924
Type
Section 192 Permitted Development
Status
Registered
Received
24 Aug 2026
Validated
24 Aug 2026
Ward
Whitton Ward [WTT]
Postcode
TW2 7JG

Timeline

Dates from the published record

  1. 24 Aug 2026

    Received by Richmond upon Thames

  2. 2 Sep 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 19 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Richmond upon Thames took a median of 45 days over the applications it decided in the last year.

Documents

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

7 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 happens while it is decided

The process from here

This application is with Richmond upon Thames 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 prior approval applications

How this application type works

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

Nearby applications

Within 500 metres

  • 24 Mayfair Avenue Twickenham TW2 7JG

    PA26/0041 Submitted 6 Jan 2026 8m away

    Construction of a hip-to-gable loft conversion and rear dormer. Installation of rooflights. Installation of solar panels. Construction of a front porch.

    Granted Prior approval Extension Loft or dormer 12 docs
    Small domestic

  • 23 Mayfair Avenue Twickenham TW2 7JG

    24/2429/HOT Submitted 26 Sep 2024 38m away

    Single Storey Rear Extension with rooflight.

    Granted Householder Extension Loft or dormer 15 docs
    Small domestic

  • 21 Mayfair Avenue Twickenham Richmond Upon Thames TW2 7JG

    05/2576/PS192 Submitted 23 Aug 2005 42m away

    Proposed Single Storey Rear Extension And Erection Of Garage To Rear Of Property.

    Granted Prior approval Extension 8 docs
    Small domestic

  • 21 Mayfair Avenue Twickenham TW2 7JG

    PA26/1943 Submitted 3 Jun 2026 43m away

    HIP TO GABLE LOFT CONVERSION, ERECTION OF A REAR ROOF DORMER, PARTIAL REMOVAL OF CHIMNEY STACK, INSERTION OF TWO VELUX ROOFLIGHTS TO FRONT ROOFLSOPE AND ALTERATIONS TO FENESTRATION ON FLANK ELEVATION

    Granted Prior approval Loft or dormer Windows or glazing 16 docs

  • 17 Melrose Avenue, Twickenham, TW2 7JE

    PA26/1109 Submitted 30 Mar 2026 45m away

    Single storey rear extension

    Granted Householder Extension 13 docs
    Small domestic

  • 13 Mayfair Avenue Twickenham TW2 7JG

    19/3431/PS192 Submitted 11 Nov 2019 56m away

    Hip-to-gable loft conversion with rooflights to the front roof.

    Granted Prior approval Loft or dormer 17 docs

In Richmond upon Thames

  • PA26/2877 Granted

    36 Pensford Avenue Kew

    Erection of side dormer.

    19 Aug 2026 Prior approval
  • PA26/2978 Awaiting decision

    144 Broad Lane Hampton Richmond Upon Thames TW12 3BW

    PROPOSED SINGLE STOREY SIDE EXTENSION. PROPOSED LOFT ADDITION

    27 Aug 2026 Prior approval
  • PA26/2981 Awaiting decision

    18 Lyndhurst Avenue Twickenham TW2 6BY

    single-storey rear extensions 6m depth, 3m eaves height, 3m overall height

    27 Aug 2026 Prior approval
  • PA26/2975 Awaiting decision

    2 Twickenham Road Teddington TW11 8AG

    Loft Conversion involving hip to gable conversion and installation of 5 x roof lights

    27 Aug 2026 Prior approval
  • PA26/2974 Awaiting decision

    12 Selkirk Road Twickenham TW2 6PX

    Demolition of existing conservatory and garage. Single storey rear extension, to be 3m deep, aligned with existing side elevation with flat roof and rooflights. Single storey side extension with rear wall aligned to existing main rear elevation with flat roof and rooflight. Front door relocated to the front elevation and front window relocated to side extension. First Floor flat roof dormers, with rooflights to flat and pitched roofs. All materials to match existing.

    27 Aug 2026 Prior approval