1 Colonial Avenue Twickenham TW2 7EE

This site has had 2 applications since 2026.

• PA26/2668 Awaiting decision

  1 Colonial Avenue Twickenham TW2 7EE

  Hip to gable and rear dormer roof extensions. Roof lights to the front roof slope. Single storey rear extension. Associated alterations.

  Submitted 30 Jul 2026 Prior approval

1. 11 Aug 2026

   Received by Richmond upon Thames

2. 23 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 6 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Richmond upon Thames took a median of 45 days over the applications it decided in the last year.

This application is with Richmond upon Thames for determination, against a statutory target of eight weeks. Over the last year Richmond upon Thames decided householder applications in a median of 55 days. More in our guide to how long planning decisions take.

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.

• 1 Colonial Avenue Twickenham TW2 7EE

  PA26/2668 Submitted 30 Jul 2026 0m away

  87% historically approved · decision due ~1 Oct

  Hip to gable and rear dormer roof extensions. Roof lights to the front roof slope. Single storey rear extension. Associated alterations.

  Awaiting decision Prior approval Extension Loft or dormer 6 docs
  Small domestic

• 186 Kneller Road Twickenham Richmond Upon Thames TW2 7EF

  05/1093/COU Submitted 13 Apr 2005 21m away

  Change Of Use From A Shop To Residential Use And External Alterations.

  Refused Full applications 10 docs

• 186 Kneller Road Twickenham Richmond Upon Thames TW2 7EF

  05/2402/COU Submitted 9 Aug 2005 21m away

  Change Of Use From A Shop With Residential Accommodation To A Single Family House.

  Granted Full applications 6 docs

• 182 Kneller Road Twickenham TW2 7DX

  19/3492/PS192 Submitted 15 Nov 2019 47m away

  Proposed front porch.

  Granted Prior approval Extension 6 docs
  Small domestic

• 182 Kneller Road Twickenham Richmond Upon Thames TW2 7DX

  05/0448/HOT Submitted 14 Feb 2005 47m away

  Proposed Single Storey Side Extension And Two Storey Rear Extension.

  Refused Householder Extension 5 docs
  Small domestic

• 14 Colonial Avenue Twickenham TW2 7ED

  PA26/0090 Submitted 12 Jan 2026 50m away

  Proposed porch, rear single storey extension, roof extension, dormer to the rear and front first floor window.

  Granted Householder Extension Loft or dormer +1 15 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