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Planning application

PA26/1604

55 Winchester Road Twickenham

Granted Richmond upon Thames Section 192 Permitted Development

Proposal

Erection of a rear roof dormer to existing outrigger roof and alterations to an existing rear dormer to the main roof in materials to match existing.

As published by the council, reference PA26/1604

Timeline

Dates from the published record

  1. 11 May 2026

    Received by Richmond upon Thames

  2. 2 Jul 2026

    Decision issued: Granted Permission

  3. 26 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

  • 05/2999/PS192 Granted

    9 Sidney Road Twickenham Richmond Upon Thames TW1 1JP

    Demolition Of Existing Rear Extension And Erection Of A New Single Storey Rear Extension Forming Utility And WC.

    11 Oct 2005 58m away Prior approval
  • PA26/2590 Awaiting decision

    39 Winchester Road Twickenham TW1 1LE

    Rear roof & outrigger dormer extensions, rooflights to existing roof.

    24 Jul 2026 60m away Prior approval
  • PA26/1713 Awaiting decision

    4, The Mews, Bridge Road, Twickenham, TW1 1RF

    - CONSTRUCTION OF MANSARD AND 2 NO. DORMER WINDOWS TO FRONT OF PROPERTY - PROPOSED 2 NO. OPAQUE VELUX WINDOWS TO REAR OF NEW MANSARD - PROPOSED 2 NO. FLAT-PROFILE SKY LIGHTS TO REAR OF NEW MANSARD ROOF - CHANGE IN ENTRANCE DOOR LOCATION ON GROUND FLOOR AND REPLACEMENT OF EXISTING FRONT DOOR - PROPOSED SASH WINDOW TO FIRST FLOOR - PROPOSED OPAQUE AND FIXED TIMBER SASH WINDOW TO REAR ELEVATION ON FIRST FLOOR - REPLACEMENT OF ALL EXISTING WINDOWS WITH LIKE-FOR-LIKE TIMBER SASH WINDOWS - INTERNAL REFURBISHMENT

    18 May 2026 76m away Full applications
  • PA26/2450 Awaiting decision

    1 Broadway Avenue Twickenham TW1 1RH

    Proposed ground floor side and rear extension and loft conversion to existing dwelling house Including three flat rooflights and five VELUX-type roof windows to loft and two ground floor side windows positioned a minimum of 1.7m above internal finished floor level

    13 Jul 2026 78m away Householder
  • 05/3615/HOT Refused

    66 Winchester Road Twickenham Richmond Upon Thames TW1 1LD

    Proposed Rear Dormer, Alterations To Rear Elevation Including Removal Of Two Small Windows And Replacement With A Large Window.

    5 Dec 2005 86m away Householder
  • 06/0968/FUL Withdrawn

    31 - 33 Winchester Road Twickenham Richmond Upon Thames TW1 1LE

    Proposal involving: 1. Change of use from business (B1) to residential (C3) at ground floor of 33. 2. Loft conversion and rear extension to 33. 3. Demolition of garage and MOT facility at 31 - to be replaced by a 2-storey building incorporating offices (B1) at ground, 1st floor and roof level.

    30 Mar 2006 86m away Full applications

In Richmond upon Thames

  • PA26/2637 Awaiting decision

    17 Kingsway Mortlake London SW14 7HL

    Rear L Shaped dormer with roof lights on front slope

    29 Jul 2026 Prior approval
  • PA26/2643 Awaiting decision

    22, Michelham Gardens, Twickenham, TW1 4SB

    Proposed loft dormer conversion, internal alterations and addition of Velux to front roof slope.

    29 Jul 2026 Prior approval
  • PA26/2618 Awaiting decision

    Grove Cottage, Lower Teddington Road, Hampton Wick, Kingston Upon Thames, KT1 4HJ

    Erection of a rear garden studio building overlooking the Thames River.

    28 Jul 2026 Prior approval
  • PA26/2615 Awaiting decision

    30, Jubilee Avenue, Twickenham, TW2 6JB

    Loft conversion with roof extension and proposed out building in the rear garden.

    27 Jul 2026 Prior approval
  • PA26/2300 Granted

    16 Enmore Gardens East Sheen London SW14 8RF

    Single storey rear extension, 5m in depth from original house, 3.8m in height and 3m at the eaves.

    30 Jun 2026 Prior approval