109, Castelnau, London, SW13 9EL

This site has had 3 applications since 2026: 1 approved, 0 refused.

• PA26/2752 Awaiting decision

  109, Castelnau, London, SW13 9EL

  Replacement rear extension, addition of a side dormer, widening of the front and rear dormers, alterations to the window glazing, to increase the height of the coach house extension and internal alterations to layout and features at the lower ground, upper ground, first and second floors.

  Submitted 7 Aug 2026 Heritage and listed buildings
• PA26/2225 Granted

  109, Castelnau, London, SW13 9EL

  Tree T11 - Robinia pseudoacacia (as identified on the Topographical Survey BS5837 provided and as described in Arborist's tree schedule). It is proposed that this tree be removed and three new trees be planted as part of a new scheme. The three new trees will be appropriate in size and in keeping with the scale of the property and surrounding environment.

  Decided 20 Jul 2026 Trees

1. 7 Aug 2026

   Received by Richmond upon Thames

2. 13 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 2 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.

• 109, Castelnau, London, SW13 9EL

  PA26/2225 Submitted 24 Jun 2026 0m away

  Tree T11 - Robinia pseudoacacia (as identified on the Topographical Survey BS5837 provided and as described in Arborist's tree schedule). It is proposed that this tree be removed and three new trees be planted as part of a new scheme. The three new trees will be appropriate in size and in keeping with the scale of the property and surrounding environment.

  Granted Trees 5 docs

• 109, Castelnau, London, SW13 9EL

  PA26/2752 Submitted 7 Aug 2026 0m away

  87% historically approved · decision due ~2 Oct

  Replacement rear extension, addition of a side dormer, widening of the front and rear dormers, alterations to the window glazing, to increase the height of the coach house extension and internal alterations to layout and features at the lower ground, upper ground, first and second floors.

  Awaiting decision Heritage and listed buildings Extension Loft or dormer +1 64 docs

• 109 Castelnau Barnes Richmond Upon Thames SW13 9EL

  06/T0200/TCA Submitted 23 Mar 2006 7m away

  T1 - Oak (Quercus spp.) - Complete removal of lowest 3 limbs.

  Granted Trees

• 107 Castelnau Barnes London SW13 9EL

  24/2323/HOT Submitted 16 Sep 2024 14m away

  Partial demolition of the existing rear extension at lower ground floor, and construction of a new extension of greater depth; new metal gate to the front boundary; replacement of French doors to upper ground floor rear elevation

  Granted Householder Extension Demolition +1 44 docs
  Domestic

• 107 Castelnau Barnes London SW13 9EL

  24/2324/LBC Submitted 16 Sep 2024 14m away

  Partial demolition of the existing rear extension at lower ground floor, and construction of a new extension of greater depth; new metal gate to the front boundary; replacement of French doors to upper ground floor rear elevation

  Granted Heritage and listed buildings Extension Demolition +1 44 docs

• 107 Castelnau Barnes Richmond Upon Thames SW13 9EL

  06/T0199/TCA Submitted 23 Mar 2006 15m away

  T1 - Yew (Taxus baccata) - Crown reduction of up to 30%

  Granted Trees

• 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