21, Lime Grove, Twickenham, TW1 1EL

1. 26 Aug 2026

   Received by Richmond upon Thames

2. 2 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 21 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

• 21 Lime Grove Twickenham TW1 1EL

  PA26/2417 Submitted 9 Jul 2026 0m away

  Single storey side addition and single storey rear extension to a single family house

  Refused Prior approval Extension 7 docs
  Small domestic

• 21 Lime Grove Twickenham TW1 1EL

  PA26/2416 Submitted 9 Jul 2026 0m away

  Formation of rooms in an adapted roof space with a rear roof dormer, hip to gable and installation of roof lights to front roof slope

  Granted Prior approval Loft or dormer 7 docs

• 29 Lime Grove Twickenham Richmond Upon Thames TW1 1EL

  06/0445/PS192 Submitted 15 Feb 2006 39m away

  Proposed Hip To Gable Loft Conversion With Rear Dormer.

  Granted Prior approval Loft or dormer 10 docs

• 10 Lime Grove Twickenham Richmond Upon Thames TW1 1EL

  05/3336/HOT Submitted 9 Nov 2005 66m away

  Demolition Of Existing Detached Garage. Erection Of A Single Storey Side And Rear Extension And Extension Of Roof Incorporating Side And Rear Dormers.

  Granted Householder Extension Loft or dormer +1 5 docs
  Small domestic

• 34 Lime Grove Twickenham TW1 1EL

  PA26/0808 Submitted 9 Mar 2026 72m away

  Rear and side extension to a semi-detached bungalow to replace the existing rear extension.

  Granted Householder Extension 20 docs
  Domestic

• 34 Lime Grove Twickenham TW1 1EL

  PA26/0793 Submitted 6 Mar 2026 72m away

  Extension of the existing dormer to the rear of a semi-detached bungalow, including 2 new roof lights to the front elevation

  Granted Prior approval Extension Loft or dormer +1 17 docs

• PA26/2437 Granted

  119 Hampton Road Twickenham TW2 5QN

  Erection of a single-storey rear extension and associated internal alterations.

  13 Jul 2026 Prior approval
• PA26/2424 Granted

  45 Selkirk Road Twickenham

  Flat roof rear box dormer extension with wall tiles to match existing roof.

  10 Jul 2026 Prior approval
• PA26/2409 Granted

  15 Tudor Road Hampton TW12 2NH

  Proposed single storey rear extension and rear ground floor opening alterations.

  9 Jul 2026 Prior approval
• PA26/2615 Granted

  30, Jubilee Avenue, Twickenham, TW2 6JB

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

  27 Jul 2026 Prior approval
• PA26/3058 Awaiting decision

  253, Staines Road, Twickenham, TW2 5AY

  Prior approval for larger household extension (6m depth, 2.3m eaves height, 4m overall height)

  2 Sep 2026 Prior approval