24 Mayfair Avenue Twickenham TW2 7JG

1. 6 Jan 2026

   Received by Richmond upon Thames

2. 7 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 18 Mar 2026

   Decision issued: Granted Permission

4. 13 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

• 26, Mayfair Avenue, Twickenham, TW2 7JG

  PA26/2924 Submitted 24 Aug 2026 8m away

  87% historically approved · decision due ~19 Oct

  Hip to gable loft conversion, construction of a new rear roof dormer, new rooflights to the loft and front of the property, obscure glazed window to the side elevation, new front porch.

  Awaiting decision Prior approval Extension Loft or dormer +1 7 docs
  Small domestic

• 23 Mayfair Avenue Twickenham TW2 7JG

  24/2429/HOT Submitted 26 Sep 2024 37m away

  Single Storey Rear Extension with rooflight.

  Granted Householder Extension Loft or dormer 15 docs
  Small domestic

• 21 Mayfair Avenue Twickenham Richmond Upon Thames TW2 7JG

  05/2576/PS192 Submitted 23 Aug 2005 39m away

  Proposed Single Storey Rear Extension And Erection Of Garage To Rear Of Property.

  Granted Prior approval Extension 8 docs
  Small domestic

• 17 Melrose Avenue, Twickenham, TW2 7JE

  PA26/1109 Submitted 30 Mar 2026 40m away

  Single storey rear extension

  Granted Householder Extension 13 docs
  Small domestic

• 21 Mayfair Avenue Twickenham TW2 7JG

  PA26/1943 Submitted 3 Jun 2026 41m away

  HIP TO GABLE LOFT CONVERSION, ERECTION OF A REAR ROOF DORMER, PARTIAL REMOVAL OF CHIMNEY STACK, INSERTION OF TWO VELUX ROOFLIGHTS TO FRONT ROOFLSOPE AND ALTERATIONS TO FENESTRATION ON FLANK ELEVATION

  Granted Prior approval Loft or dormer Windows or glazing 16 docs

• 13 Mayfair Avenue Twickenham TW2 7JG

  19/3431/PS192 Submitted 11 Nov 2019 50m away

  Hip-to-gable loft conversion with rooflights to the front roof.

  Granted Prior approval Loft or dormer 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