30 First Avenue Mortlake London SW14 8SR

1. 2 Sep 2026

   Received by Richmond upon Thames

2. 4 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 8 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 30 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, against a statutory target of eight weeks. Over the last year Richmond upon Thames decided prior approval applications in a median of 39 days. More in our guide to how long planning decisions take.

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.

• 49 Second Avenue Mortlake London SW14 8QF

  PA26/1359 Submitted 20 Apr 2026 25m away

  Rear dormer pod roof extension above existing two-storey outrigger

  Granted Householder Extension Loft or dormer 17 docs
  Domestic

• 25 First Avenue Barnes Richmond Upon Thames SW14 8SP

  05/1125/HOT Submitted 15 Apr 2005 33m away

  Proposed loft extension with rear dormer and roof terrace over existing first floor extension

  Granted Householder Extension Loft or dormer 6 docs
  Domestic

• 43 Second Avenue Mortlake Richmond Upon Thames SW14 8QF

  05/3713/HOT Submitted 12 Dec 2005 34m away

  Loft Conversion.

  Granted Householder Loft or dormer
  Domestic

• 43 Second Avenue Mortlake Richmond Upon Thames SW14 8QF

  05/3923/HOT Submitted 16 Dec 2005 34m away

  Loft extension with rear mansard, sky lights to front roof slope and ridge to be raised to match neighbouring properties.

  Granted Householder Extension Loft or dormer 19 docs
  Domestic

• 43, First Avenue, London, SW14 8SP

  PA26/0870 Submitted 12 Mar 2026 49m away

  Loft level pod extension to the rear of the property. New ground floor doors to garden.

  Granted Householder Extension 20 docs
  Domestic

• 43, First Avenue, London, SW14 8SP

  PA26/1872 Submitted 29 May 2026 49m away

  Removal of existing AC condenser from second floor roof terrace. Installation of 1 new external air conditioning condenser on the rear second-floor terrace beside new pod extension.

  Granted Householder Extension 12 docs
  Domestic

• 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