18 Lyndhurst Avenue Twickenham TW2 6BY

1. 27 Aug 2026

   Received by Richmond upon Thames

2. 2 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 22 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.

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.

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

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

  05/3481/HOT Submitted 21 Nov 2005 64m 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 64m 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  Withdrawn Householder Extension Loft or dormer 6 docs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 65m 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  Withdrawn Householder Extension Loft or dormer 7 docs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 79m 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

• 29 Waverley Avenue Twickenham Richmond Upon Thames TW2 6DQ

  05/1582/HOT Submitted 23 May 2005 79m 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

• 18 Waverley Avenue Twickenham TW2 6DW

  21/1950/HOT Submitted 28 May 2021 81m away

  Proposed single storey rear / side extension

  Granted Householder Extension 7 docs
  Small domestic

• 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
• PA26/2975 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
• PA26/2364 Granted

  6, Penrhyn Crescent, London, SW14 7PF

  Side extension

  6 Jul 2026 Prior approval