22 St Margarets Grove Twickenham TW1 1JG

1. 6 May 2026

   Received by Richmond upon Thames

2. 19 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 14 July 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 46 days over the applications it decided in the last year.

This application is with Richmond upon Thames for determination, against a statutory target of eight weeks. Over the last year Richmond upon Thames decided householder applications in a median of 56 days. More in our guide to how long planning decisions take.

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.

• 10 St Margarets Grove Twickenham TW1 1JG

  24/1940/HOT Submitted 30 Jul 2024 50 yards away

  EXTENSION OF GROUND FLOOR REAR EXTENSION. INFILL EXTENSION OF FIRST FLOOR.

  Granted Householder Extension 21 docs
  Domestic

• 6 St Margarets Grove Twickenham TW1 1JG

  23/0136/HOT Submitted 17 Jan 2023 50 yards away

  Proposed mansard roof extension with rooflights & internal reconfigurations

  Granted Householder Extension Loft or dormer 29 docs
  Domestic

• 36 St Margarets Grove Twickenham TW1 1JG

  23/0479/HOT Submitted 23 Feb 2023 50 yards away

  Single storey rear and side infill extension.

  Refused Householder Extension 11 docs
  Small domestic

• 9 St Margarets Grove Twickenham TW1 1JF

  22/3797/PS192 Submitted 27 Dec 2022 50 yards away

  Dormer roof extension to outrigger roof. New window and balustrade to existing rear dormer. Rooflight to front elevation

  Granted Prior approval Extension Loft or dormer +1 18 docs

• 25 South Western Road Twickenham TW1 1LG

  PA25/3596 Submitted 10 Oct 2025 50 yards away

  L-shaped rear dormer

  Refused Householder Loft or dormer 10 docs
  Domestic

• 2 St Margarets Grove Twickenham TW1 1JG

  PA26/3166 Submitted 11 Sep 2026 50 yards away

  Rear Ground Floor extension

  Refused Prior approval Extension 16 docs

• PA26/2361 Refused

  11, Waterloo Place, Richmond, TW9 1EB

  Single storey rear extension to replace existing rear extension.

  Received 6 Jul, published by the council 26 Jul 2026 Householder
• PA26/2869 Refused

  60, Castelnau, London, SW13 9EX

  Improvements to the front elevation, replacement of the coach house, replacement of the rear extensions, first and second floor rear extension and new basement excavation.

  Received 18 Aug, published by the council 23 Aug 2026 Householder
• PA26/2821 Granted

  192A, Sheen Lane, London, SW14 8LF

  Alterations to the existing dwelling, including enlarging existing window and door openings, replacement windows and doors, new rooflight openings, replacement rooflights in existing openings, rendering the external brickwork, installation of an air source heat pump, air conditioning unit and photovoltaic panels, installation of woodburner flue, removal of the brick chimney stack at roof level and replacement of a brick garden wall with a timber screen.

  Received 13 Aug, published by the council 23 Aug 2026 Householder
• PA26/2256 Refused

  36A Cambridge Park Twickenham TW1 2JU

  Erection of a detached domestic garage to serve the existing dwelling, positioned toward the front/side of the plot and associated frontage boundary alterations including replacement wall/fence/hedging treatment.

  Received 29 Jun, published by the council 23 Aug 2026 Householder
• PA26/2671 Granted

  30, The Avenue, Twickenham, TW1 1RY

  Demolition of garage, ground floor rear extension, ground floor side extension, new conservation rooflights to main roof and removal of one window.

  Received 31 Jul, published by the council 6 Aug 2026 Householder