103 Syon Park Gardens, Isleworth, TW7 5NF

This site has had 2 applications since 2026.

• P/2026/2642 Awaiting decision

  103 Syon Park Gardens, Isleworth, TW7 5NF

  Erection of a single storey side extension.

  Submitted 16 Sep 2026 Householder

1. 16 Sep 2026

   Received by Hounslow

2. 20 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 11 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hounslow took a median of 56 days over the applications it decided in the last year.

This application is with Hounslow for determination, against a statutory target of eight weeks. Over the last year Hounslow decided householder applications in a median of 63 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.

• 103 Syon Park Gardens, Isleworth, TW7 5NF

  P/2026/2642 Submitted 16 Sep 2026 50 yards away

  77% historically approved · decision due ~11 Nov

  Erection of a single storey side extension.

  Awaiting decision Householder Extension 13 docs
  Small domestic

• 764 Great West Road, Isleworth, TW7 5NA

  P/2025/3217 Submitted 24 Oct 2025 50 yards away

  Erection of a single storey rear infill extension to the hotel

  Granted Full applications Extension 12 docs
  Small domestic

• 56 SYON PARK GARDENS, ISLEWORTH, TW7 5ND

  PA/2021/2819 Submitted 9 Jul 2021 100 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.20 metres, 3.00 metres high to the eaves

  Refused Prior approval Extension 4 docs

• Wyke Green Estate, Isleworth TW7 5PG

  P/2025/3824 Submitted 2 Jan 2026 150 yards away

  Works to trees within TPO 64. T15 Holly. Fell to ground level T28 and T29 Yew. Prune back overhang into property by up to 2 metres T142 Rowan. Fell to ground level. T3 Blue Atlas Cedar. Prune overhang into property back to previous pruning points and by up to 1 metre.

  Granted Trees 4 docs

• 150 Wood Lane, Isleworth, TW7 5EQ

  P/2025/3080 Submitted 13 Oct 2025 150 yards away

  Erection of two storey side, part single, part two storey rear extension, and rear roof extension with two front roof windows to allow for the conversion of the house into five self contained flats with associated car parking and cycle and bin storage.

  Granted Full applications New dwelling Extension +1 44 docs

• 740 Great West Road, Isleworth, TW7 5LT

  P/2025/2835 Submitted 22 Sep 2025 200 yards away

  Erection of roof extensions and elevational alterations, including conversion of a hipped roof to a gabled crown roof with increased ridge height, a rear roof extension, and the installation of two rooflights to the house.

  Refused Householder Extension Loft or dormer +1 6 docs
  Domestic

• P/2026/1827 Granted

  31 Staveley Gardens,Chiswick,W4 2SA

  Erection of a single storey front porch extension, two storey side extension and single storey rear extension to the house.

  Received 19 Jun, published by the council 26 Jul 2026 Householder
• P/2026/1567 Granted

  15 Devonshire Gardens, Chiswick, London, W4 3TN

  Demolition of the existing single storey detached unenclosed gazebo outbuilding in the south western area of the house's rear garden and erection of a single storey detached outbuilding with a front lean-to in the south western area of the house's rear garden.

  Received 26 May, published by the council 26 Jul 2026 Householder
• P/2026/2655 Awaiting decision

  39 Old Cote Drive, Hounslow, TW5 0RW

  Erection of a single storey detached outbuilding.

  Received 17 Sep, published by the council 20 Sep 2026 Householder
• P/2026/2642 Awaiting decision

  103 Syon Park Gardens, Isleworth, TW7 5NF

  Erection of a single storey side extension.

  Received 16 Sep, published by the council 20 Sep 2026 Householder
• P/2026/2623 Awaiting decision

  8 Lonsdale Road,Chiswick,W4 1ND

  Installation of external condenser at first floor level.

  Received 15 Sep, published by the council 17 Sep 2026 Householder