18, Strathearn Avenue, Twickenham, TW2 6JU

1. 7 Aug 2026

   Received by Richmond upon Thames

2. 13 Aug 2026

   Added to PlanIndex

3. 1 Oct 2026

   Decision issued: Granted Permission

Richmond upon Thames granted permission on 1 October 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.

• 16 Strathearn Avenue Twickenham TW2 6JU

  19/3235/PDE Submitted 22 Oct 2019 50 yards away

  Single-storey rear extension (4m depth, 3.2m eaves height, 3.2m maximum height).

  Withdrawn Prior approval Extension 5 docs
  Small domestic

• 14, Strathearn Avenue, Twickenham, TW2 6JU

  PA26/3379 Submitted 1 Oct 2026 50 yards away

  84% historically approved · decision due ~26 Nov

  The application is for an L shaped ground floor extension with a side facing first floor extension and a front facing porch extension to a semi detached Edwardian property to create additional space for a family home.

  Awaiting decision Householder Extension 16 docs
  Small domestic

• 14, Strathearn Avenue, Twickenham, TW2 6JU

  PA26/3378 Submitted 1 Oct 2026 50 yards away

  86% historically approved · decision due ~26 Nov

  A hip to gable dormer loft conversion with associated internal remodelling and renovations

  Awaiting decision Prior approval Loft or dormer 16 docs

• 12, Strathearn Avenue, Twickenham, TW2 6JU

  PA25/3519 Submitted 7 Oct 2025 50 yards away

  First Floor Side Extension, Conversion of Garage to Habitable Accommodation, Alterations to Roof including Increase in Ridge Height and Rear Dormer, Alterations to Elevations, And All Associated Works

  Refused Householder Extension Loft or dormer +1 24 docs
  Domestic

• 12, Strathearn Avenue, Twickenham, TW2 6JU

  PA25/3488 Submitted 3 Oct 2025 50 yards away

  First Floor Side Extension, Conversion of Garage to Habitable Accommodation, Alterations to Elevations, And All Associated Works

  Refused Householder Extension 25 docs
  Domestic

• 12, Strathearn Avenue, Twickenham, TW2 6JU

  PA26/0760 Submitted 4 Mar 2026 50 yards away

  Proposed garage conversion to habitable room with new flat roof over and front elevation set back.

  Granted Householder 9 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