15, Gladstone Avenue, Twickenham, TW2 7PS

1. 12 Nov 2025

   Received by Richmond upon Thames

2. 15 Dec 2025

   Decision issued: Granted Permission

3. 13 Aug 2026

   Added to PlanIndex

Richmond upon Thames granted permission on 15 December 2025, 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 17 Gladstone Avenue Twickenham TW2 7PS

  21/1836/HOT Submitted 20 May 2021 13m away

  Demolition of existing garage and garden shed. Build new garden room to provide 2 offices plus utility, shower and WC. Take down existing fence adjacent to garage and erect new fence relocated after the works are completed.

  Granted Householder Demolition 18 docs
  Small domestic

• 19 Gladstone Avenue Twickenham Richmond Upon Thames TW2 7PS

  06/0818/HOT Submitted 17 Mar 2006 20m away

  Proposed single storey rear addition.

  Granted Householder 7 docs
  Small domestic

• 10 Rosecroft Gardens Twickenham Richmond Upon Thames TW2 7PX

  05/2682/HOT Submitted 2 Sep 2005 60m away

  Proposed single storey rear extension and rooms in roof space including front, side and rear rooflights.

  Refused Householder Extension Loft or dormer 10 docs
  Small domestic

• 26 Gladstone Avenue Twickenham Richmond Upon Thames TW2 7PR

  05/1022/HOT Submitted 6 Apr 2005 65m away

  Single storey rear extension, roof extension and single storey rear outbuilding for use as a garage and playroom.

  Refused Householder Extension 6 docs
  Small domestic

• 26 Gladstone Avenue Twickenham Richmond Upon Thames TW2 7PR

  05/3015/HOT Submitted 12 Oct 2005 65m away

  Proposed Single Storey Rear Extension, Rear Roof Extension And Erection Of A Single Storey Rear Outbuilding For Use As A Garage And Playroom.

  Refused Householder Extension 6 docs
  Small domestic

• 50 Gladstone Avenue Twickenham Richmond Upon Thames TW2 7PR

  05/2771/HOT Submitted 15 Sep 2005 76m away

  Proposed Single Storey Rear Extension And Loft Conversion With Rear Dormer.

  Refused Householder Extension Loft or dormer 7 docs
  Small domestic

• PA26/2452 Refused

  50 Fairfax Road Teddington TW11 9BZ

  Roof extension to create additional loft storey. Increase in height to eaves and ridge to part of existing roof.

  13 Jul 2026 Householder
• PA26/3078 Awaiting decision

  64 FIRST AVENUE MORTLAKE LONDON SW14 8SR

  The demolition of the existing ground floor rear extension, construction of replacement ground floor rear extension and replacement windows to the rear of the property.

  4 Sep 2026 Householder
• PA26/3057 Awaiting decision

  23, Manderlea, The Avenue, Hampton, TW12 3RN

  Single storey rear extension, single storey side extension, and the installation of an air conditioning unit

  3 Sep 2026 Householder
• PA26/3068 Awaiting decision

  27 Ranelagh Avenue Barnes London SW13 0BL

  Single storey side return with a sloping rooflight. Incl replacement windows throughout.

  3 Sep 2026 Householder
• PA26/3067 Awaiting decision

  27 Ranelagh Avenue Barnes London SW13 0BL

  Rear mansard roof extension.

  3 Sep 2026 Householder