18 Merthyr Terrace Barnes London SW13 8DL

1. 14 Jun 2021

   Received by Richmond upon Thames

2. 6 Aug 2021

   Decision issued: Granted Permission

3. 16 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

• 18 Merthyr Terrace Barnes

  PA26/1557 Submitted 6 May 2026 0m away

  T1 Bay Reduce in height by approx. 50% and trim sides as far back as possible whilst still maintaining some greenery. T2 Camellia Reduce all aspects of the crown back to previous points of reduction. Cut back away from neighbour’s side to suitable growth points.

  Granted Trees 2 docs

• 16 Merthyr Terrace Barnes Richmond Upon Thames SW13 8DL

  05/0769/HOT Submitted 15 Mar 2005 9m away

  ground and first floor rear extension

  Granted Householder Extension 7 docs
  Domestic

• 20 Merthyr Terrace Barnes London SW13 8DL

  PA25/3164 Submitted 12 Sep 2025 9m away

  T1.Sycamore (Ivy Clad) Front Garden: Reduce new growth back to most previous points or 1m height and spread, and light trim the Ivy to access branches. The tree's current height is 5m, and its crown spread is 4m After the proposed works, the tree's height is 4m and the crown spread is 3m

  Granted Trees 3 docs

• 18 Merthyr Terrace Barnes London SW13 8DL

  19/T0861/TCA Submitted 14 Oct 2019 10m away

  T1 - Eucalyptus - Reduce crown to 1-2m above last points of reduction (approx. 35% reduction in height). Reduce lateral crown spread by 2-3m. Retain internal growth for furnishing. Remaining height 10-12m, width 10m. T2 - Oak - Reduce crown by 2m all round and shape. Thin crown by 20%. Remaining height 4-5m, width 5m. T3 - Bay - Reduce crown by 1.25m all round and shape. Remaining height 5m, width 3.5-4m.

  Granted Trees 5 docs

• 10 Merthyr Terrace Barnes Richmond Upon Thames SW13 8DL

  05/T0570/TCA Submitted 28 Sep 2005 35m away

  T1 - Eucalyptus - Fell

  Granted Trees

• 33 Merthyr Terrace Barnes Richmond Upon Thames SW13 8DL

  06/1107/HOT Submitted 6 Apr 2006 40m away

  Erection of single storey rear extension; third floor rear extension; mansard style rear roof extension and roof lantern

  Refused Householder Extension Loft or dormer +1 22 docs
  Small domestic

• PA26/2877 Granted

  36 Pensford Avenue Kew

  Erection of side dormer.

  19 Aug 2026 Prior approval
• PA26/2978 Awaiting decision

  144 Broad Lane Hampton Richmond Upon Thames TW12 3BW

  PROPOSED SINGLE STOREY SIDE EXTENSION. PROPOSED LOFT ADDITION

  27 Aug 2026 Prior approval
• PA26/2981 Awaiting decision

  18 Lyndhurst Avenue Twickenham TW2 6BY

  single-storey rear extensions 6m depth, 3m eaves height, 3m overall height

  27 Aug 2026 Prior approval
• PA26/2975 Awaiting decision

  2 Twickenham Road Teddington TW11 8AG

  Loft Conversion involving hip to gable conversion and installation of 5 x roof lights

  27 Aug 2026 Prior approval
• PA26/2974 Awaiting decision

  12 Selkirk Road Twickenham TW2 6PX

  Demolition of existing conservatory and garage. Single storey rear extension, to be 3m deep, aligned with existing side elevation with flat roof and rooflights. Single storey side extension with rear wall aligned to existing main rear elevation with flat roof and rooflight. Front door relocated to the front elevation and front window relocated to side extension. First Floor flat roof dormers, with rooflights to flat and pitched roofs. All materials to match existing.

  27 Aug 2026 Prior approval