18 Portman Avenue East Sheen Richmond Upon Thames SW14 8NX

1. 24 May 2005

   Received by Richmond upon Thames

2. 18 Jul 2005

   Decision issued: Permitted

3. 23 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, Portman Avenue, London, SW14 8NX

  PA25/4358 Submitted 5 Dec 2025 6m away

  Proposed single storey rear extension

  Granted Householder Extension 8 docs
  Small domestic

• 15 Portman Avenue East Sheen Richmond Upon Thames SW14 8NX

  05/3034/HOT Submitted 4 Oct 2005 33m away

  Single storey conservatory to rear of terraced property.

  Granted Householder Extension 8 docs
  Small domestic

• 172 - 176 Upper Richmond Road West East Sheen London SW14 8AW

  18/0820/DD04 Submitted 23 Feb 2023 33m away

  Details pursuant to condition DV40B - Travel Plan, of planning permission 18/0820/FUL.

  Granted Reserved matters 4 docs

• 184 Upper Richmond Road West East Sheen Richmond Upon Thames SW14 8AN

  06/0474/FUL Submitted 10 Feb 2006 68m away

  Variation of condition U05052 on planning permission 05/0124/FUL to allow future residents of site to apply for two car parking permits

  Refused Full applications 3 docs

• 31 Paynesfield Avenue East Sheen Richmond Upon Thames SW14 8DW

  05/1831/HOT Submitted 13 Jun 2005 76m away

  Loft extension with side dormer and rear dormer with juliet balcony .

  Granted Householder Extension Loft or dormer 5 docs
  Domestic

• 3 Paynesfield Avenue East Sheen London SW14 8DW

  19/3161/PS192 Submitted 18 Oct 2019 80m away

  Rear roof extension plus roof lights on front slope

  Granted Prior approval Extension Loft or dormer 13 docs

• 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