26, Mayfair Avenue, Twickenham, TW2 7JG

1. 24 Aug 2026

   Received by Richmond upon Thames

2. 2 Sep 2026

   Added to PlanIndex

3. 28 Sep 2026

   Decision issued: Granted Permission

Richmond upon Thames granted permission on 28 September 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 24 Mayfair Avenue Twickenham TW2 7JG

  PA26/0041 Submitted 6 Jan 2026 50 yards away

  Construction of a hip-to-gable loft conversion and rear dormer. Installation of rooflights. Installation of solar panels. Construction of a front porch.

  Granted Prior approval Extension Loft or dormer 12 docs
  Small domestic

• 23 Mayfair Avenue Twickenham TW2 7JG

  24/2429/HOT Submitted 26 Sep 2024 50 yards 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 50 yards away

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

  Granted Prior approval Extension 8 docs
  Small domestic

• 21 Mayfair Avenue Twickenham TW2 7JG

  PA26/1943 Submitted 3 Jun 2026 50 yards 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

• 27 Constance Road Twickenham TW2 7HT

  23/0044/PS192 Submitted 6 Jan 2023 50 yards away

  Loft conversion facilitated by hip to gable roof alteration, insertion of rooflights to front elevation and erection of dormer to rear.

  Granted Prior approval Loft or dormer 11 docs

• 17 Melrose Avenue, Twickenham, TW2 7JE

  PA26/1109 Submitted 30 Mar 2026 50 yards away

  Single storey rear extension

  Granted Householder Extension 13 docs
  Small domestic

• PA26/2683 Granted

  3, Pauline Crescent, Twickenham, TW2 6JD

  Single storey rear extension

  Received 31 Jul, published by the council 13 Aug 2026 Prior approval
• PA26/3420 Awaiting decision

  129 Lower Mortlake Road Richmond TW9 2LP

  Conversion of existing loftspace into habitable rooms with dormers to rear over main house and offshot

  Received 8 Oct, published by the council 12 Oct 2026 Prior approval
• PA26/3160 Granted

  2A Station Road Hampton Wick Middlesex KT1 4HG

  Repair of the front dormer cheeks, involving the replacement of the existing hanging slates with traditional lead.

  Received 11 Sep, published by the council 24 Sep 2026 Prior approval
• PA26/3423 Awaiting decision

  95 Selkirk Road Twickenham TW2 6PT

  Construction of single storey rear extension, 4.3m in depth, 3m in height and 3m in height to eaves.

  Received 6 Oct, published by the council 12 Oct 2026 Prior approval
• PA26/3389 Awaiting decision

  39, Shacklegate Lane, Teddington, TW11 8SF

  The existing 4.55 m deep ground-floor rear extension is to be extended by 1.45 m. The existing pitched roof will also be extended, with the overall height remaining unchanged (6m overall depth, 2.41m eaves height, 3.78m overall height).

  Received 5 Oct, published by the council 6 Oct 2026 Prior approval