42 Treen Avenue Barnes London SW13 0JT

1. 10 Apr 2026

   Received by Richmond upon Thames

2. 15 May 2026

   Decision issued: GPD Extension Approved

3. 13 Aug 2026

   Added to PlanIndex

Richmond upon Thames granted permission on 15 May 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.

• 11 Treen Avenue Barnes London SW13 0JR

  23/0438/HOT Submitted 20 Feb 2023 30m away

  Erection of single storey rear extension.

  Granted Householder Extension 18 docs
  Small domestic

• 32, Treen Avenue, London, SW13 0JT

  PA26/0313 Submitted 29 Jan 2026 30m away

  Single-storey rear extension.

  Granted Prior approval Extension 19 docs
  Small domestic

• 34 Westwood Road Barnes Richmond Upon Thames SW13 0LA

  05/2187/PS192 Submitted 21 Jul 2005 56m away

  Ground floor rear extension, loft extension with side and rear dormers.

  Granted Prior approval Extension Loft or dormer 9 docs

• 5 Westwood Gardens Barnes Richmond Upon Thames SW13 0LB

  05/1833/HOT Submitted 9 Jun 2005 57m away

  Roof extension with rear dormer.

  Refused Householder Extension Loft or dormer 4 docs
  Domestic

• 26 28, Unit 1, PRIESTS BRIDGE, LONDON, RICHMOND UPON THAMES, SW14 8TA

  PA25/3637 Submitted 13 Oct 2025 60m away

  Details pursuant to condition C24 and C25 contamination verification report for approved remedial strategy of planning reference PA25/0122.

  Granted Conditions 4 docs

• 5 Priory Gardens Barnes London SW13 0JU

  PA25/4194 Submitted 21 Nov 2025 62m away

  Rear dormer roof extension.

  Granted Prior approval Extension Loft or dormer 31 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