21 Winchester Road Twickenham TW1 1LE

This site has had 2 applications since 2022: 2 approved, 0 refused.

• 22/3560/HOT Granted

  21 Winchester Road Twickenham TW1 1LE

  Demolish rear conservatory and replace with full-width rear single-storey extension; replacement of side infill extension and an extension at 1st Floor level

  Decided 13 Feb 2023 Householder

1. 24 Sep 2025

   Received by Richmond upon Thames

2. 30 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 17 Nov 2025

   Decision issued: Granted Permission

4. 13 Aug 2026

   Added to PlanIndex

Richmond upon Thames granted permission on 17 November 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 21 Winchester Road Twickenham TW1 1LE

  22/3560/HOT Submitted 30 Nov 2022 50 yards away

  Demolish rear conservatory and replace with full-width rear single-storey extension; replacement of side infill extension and an extension at 1st Floor level

  Granted Householder Extension Demolition 18 docs
  Small domestic

• 21 and 23 Winchester Road, Twickenham

  PA26/3051 Submitted 2 Sep 2026 50 yards away

  77% historically approved · decision due ~30 Oct

  Raising of the ridge and eaves, replacement of front and rear roof slopes and the erection of rear dormer extensions to the rear roof slope and outrigger to each property, and rooflights to the front roof slopes.

  Awaiting decision Full applications Extension Loft or dormer 9 docs

• 23, Winchester Road, Twickenham, TW1 1LE

  PA26/0266 Submitted 28 Jan 2026 50 yards away

  Two rear dormer roof extensions and rooflights to the front elevation.

  Granted Prior approval Extension Loft or dormer 8 docs

• 23, Winchester Road, Twickenham, TW1 1LE

  PA25/4319 Submitted 2 Dec 2025 50 yards away

  Existing use of the property as a single dwellinghouse.

  Granted Lawful development 9 docs
  Domestic

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

  06/0968/FUL Submitted 30 Mar 2006 50 yards away

  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.

  Withdrawn Full applications Extension Loft or dormer +1 12 docs

• 33 Winchester Road Twickenham Richmond Upon Thames TW1 1LE

  05/1472/FUL Submitted 10 May 2005 50 yards away

  Proposal involving 1. Demolition of garage and MOT facility, retention of existing `house. 2. Conversion of house and associated land from busines to residential. 3. Loft conversion, rear extension and new bay to existing house and 4. construct new house on land adjacent t No.33.

  Withdrawn Full applications Extension Loft or dormer +1 11 docs

• PA26/2683 Granted

  3, Pauline Crescent, Twickenham, TW2 6JD

  Single storey rear extension

  Received 31 Jul, published by the council 13 Aug 2026 Prior approval
• PA26/3420 Awaiting decision

  129 Lower Mortlake Road Richmond TW9 2LP

  Conversion of existing loftspace into habitable rooms with dormers to rear over main house and offshot

  Received 8 Oct, published by the council 12 Oct 2026 Prior approval
• PA26/3160 Granted

  2A Station Road Hampton Wick Middlesex KT1 4HG

  Repair of the front dormer cheeks, involving the replacement of the existing hanging slates with traditional lead.

  Received 11 Sep, published by the council 24 Sep 2026 Prior approval
• PA26/3423 Awaiting decision

  95 Selkirk Road Twickenham TW2 6PT

  Construction of single storey rear extension, 4.3m in depth, 3m in height and 3m in height to eaves.

  Received 6 Oct, published by the council 12 Oct 2026 Prior approval
• PA26/3389 Awaiting decision

  39, Shacklegate Lane, Teddington, TW11 8SF

  The existing 4.55 m deep ground-floor rear extension is to be extended by 1.45 m. The existing pitched roof will also be extended, with the overall height remaining unchanged (6m overall depth, 2.41m eaves height, 3.78m overall height).

  Received 5 Oct, published by the council 6 Oct 2026 Prior approval