56 SYON PARK GARDENS, ISLEWORTH, TW7 5ND

1. 9 Jul 2021

   Received by Hounslow

2. 4 Aug 2021

   Decision issued: PRIOR APPROVAL NEEDED AND REFUSED

3. 30 Jul 2026

   Added to PlanIndex

Hounslow refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 103 Syon Park Gardens, Isleworth, TW7 5NF

  P/2026/2643 Submitted 16 Sep 2026 100 yards away

  77% historically approved · decision due ~11 Nov

  Erection of two side roof extensions.

  Awaiting decision Householder Extension 16 docs
  Domestic

• 103 Syon Park Gardens, Isleworth, TW7 5NF

  P/2026/2642 Submitted 16 Sep 2026 100 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 150 yards away

  Erection of a single storey rear infill extension to the hotel

  Granted Full applications Extension 12 docs
  Small domestic

• 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

• 109 ROXBOROUGH AVENUE, ISLEWORTH, TW7 5HH

  P/2021/2808 Submitted 9 Jul 2021 200 yards away

  Erection of a single storey rear infill extension.

  Granted Householder Extension 5 docs
  Small domestic

• 115 Roxborough Avenue, Isleworth, TW7 5HH

  P/2026/1372 Submitted 6 May 2026 200 yards away

  Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and front roof windows to the house.

  Granted Lawful development Extension Loft or dormer +1 8 docs

• PA/2026/2661 Awaiting decision

  99 Shelson Avenue, Feltham, TW13 4QT

  Ground floor rear extension 6.00 metres deep, maximum height of 3.30 metres, 3.00 metres high to the eaves

  Received 18 Sep, published by the council 20 Sep 2026 Prior approval
• PA/2026/2290 Granted

  56 Meadowbank Gardens, Hounslow, TW5 9TU

  Ground floor rear extension 6.00 metres deep, maximum height of 3.10 metres, 2.90 metres high to the eaves

  Received 6 Aug, published by the council 12 Aug 2026 Prior approval
• PA/2026/2649 Awaiting decision

  3 Clayponds Avenue, Brentford, TW8 9QQ

  Ground floor rear extension 6.00 metres deep, maximum height 3.80 metres, 3.00 metres high to the eaves.

  Received 17 Sep, published by the council 20 Sep 2026 Prior approval
• PA/2026/2641 Awaiting decision

  12 Byron Avenue, Hounslow, TW4 6LX

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.90 metres high to the eaves.

  Received 16 Sep, published by the council 20 Sep 2026 Prior approval
• PA/2026/2296 Granted

  73 Princes Road, Feltham, TW13 4LB

  Ground floor rear extension 6.0 metres deep, maximum height of 3.3 metres, 3.0 metres high to the eaves

  Received 6 Aug, published by the council 12 Aug 2026 Prior approval