21 Hertford Avenue East Sheen London SW14 8EF

1. 8 Feb 2023

   Received by Richmond upon Thames

2. 29 Mar 2023

   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

• 29, Hertford Avenue, London, SW14 8EF

  PA25/4375 Submitted 8 Dec 2025 52m away

  Double storey side extension and single storey rear extension with new dormers and fenestration changes

  Granted Householder Extension Loft or dormer +1 18 docs
  Small domestic

• 7 Hertford Avenue East Sheen Richmond Upon Thames SW14 8EF

  05/2185/FUL Submitted 20 Jul 2005 62m away

  Ground floor rear and side extension and rear extension of garage.

  Granted Full applications Extension 18 docs

• 9 Shottfield Avenue East Sheen Richmond Upon Thames SW14 8EA

  05/2957/HOT Submitted 23 Sep 2005 83m away

  Single storey rear extension and addition of dormers to existing loft.

  Granted Householder Extension Loft or dormer 10 docs
  Small domestic

• 16 Shottfield Avenue East Sheen London SW14 8EA

  21/1598/HOT Submitted 5 May 2021 101m away

  The removal of the existing roof extensions and rear extensions and erection of a part single, part two storey rear extension with a rear dormer roof extension. Proposed front porch

  Granted Householder Extension Loft or dormer 22 docs
  Small domestic

• East Sheen Primary School Upper Richmond Road West East Sheen London SW14 8ED

  21/4390/NMA1 Submitted 31 Jan 2023 103m away

  Non material amendment to planning permission 21/4390/FUL to change the proposed surface water strategy.

  Granted Amendments 5 docs

• East Sheen Cp Junior School Upper Richmond Road West East Sheen Richmond Upon Thames SW14 8ED

  05/1776/FUL Submitted 1 Jun 2005 105m away

  Proposed two ground floor extensions (toilet/shower and ITclassroom).

  Granted Full applications Extension 11 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