18 Lyndhurst Avenue Twickenham TW2 6BY

This site has had 3 applications since 2026.

• PA26/3100 Awaiting decision

  18 Lyndhurst Avenue Twickenham TW2 6BY

  hip to gable loft conversion with rear dormer and three roof lights to the front elevation and single storey side and rear extension

  Submitted 7 Sep 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

  Submitted 27 Aug 2026 Prior approval

1. 29 Sep 2026

   Received by Richmond upon Thames

2. 1 Oct 2026

   Validated

   Checked as complete and ready for consideration.

3. 4 Oct 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 26 November 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.

• 18 Lyndhurst Avenue Twickenham TW2 6BY

  PA26/3100 Submitted 7 Sep 2026 50 yards away

  86% historically approved · decision due ~2 Nov

  hip to gable loft conversion with rear dormer and three roof lights to the front elevation and single storey side and rear extension

  Awaiting decision Prior approval Extension Loft or dormer 23 docs
  Small domestic

• 18 Lyndhurst Avenue Twickenham TW2 6BY

  PA26/2981 Submitted 27 Aug 2026 50 yards away

  86% historically approved · decision due ~22 Oct

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

  Awaiting decision Prior approval Extension 22 docs
  Small domestic

• 30 And 32 Lyndhurst Avenue Twickenham Richmond Upon Thames TW2 6BY

  05/3481/HOT Submitted 21 Nov 2005 50 yards away

  Proposed Hip To Gable Loft Conversions With Rear Dormer To Both Properties; First Floor Side Extension To No.32; Single Storey Rear Extension To No.32 And Conservatory Extension To No.30 (Joint Application).

  Refused Householder Extension Loft or dormer 5 docs
  Small domestic

• 30 Lyndhurst Avenue Twickenham Richmond Upon Thames TW2 6BY

  05/2782/HOT Submitted 16 Sep 2005 50 yards away

  Proposed Gable Roof Extension With Rear Dormer And Single Storey Rear Extension.

  Withdrawn Householder Extension Loft or dormer 6 docs
  Small domestic

• 32 Lyndhurst Avenue Twickenham Richmond Upon Thames TW2 6BY

  05/2781/HOT Submitted 16 Sep 2005 50 yards away

  Proposed Two Storey Side Extension, New Gable Roof Extension With Rear Dormer And Single Storey Rear Extension.

  Withdrawn Householder Extension Loft or dormer 7 docs
  Small domestic

• 29 Waverley Avenue Twickenham Richmond Upon Thames TW2 6DQ

  05/2476/HOT Submitted 15 Aug 2005 100 yards away

  Proposal to demolish existing garage and WC and replace with two storey side extension. Demolish existing rear conservatory and replace with a single storey rear addition.

  Refused Householder Extension Demolition 5 docs
  Small domestic

• 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