258 Ash Grove, Hounslow, TW5 9DY

1. 10 Dec 2025

   Received by Hounslow

2. 9 Jan 2026

   Decision issued: PRIOR APPROVAL NEEDED AND REFUSED

3. 12 Aug 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.

• 153 Ash Grove, Hounslow, TW5 9DX

  P/2025/0031 Submitted 3 Jan 2025 39m away

  76% historically approved · decision due ~20 Mar

  Creation of vehicular access to the house

  Awaiting decision Householder 4 docs
  Domestic

• 137 Ash Grove, Hounslow, TW5 9DX

  P/2025/2678 Submitted 3 Sep 2025 75m away

  Certificate of lawfulness for the existing use of a House in Multiple Occupation (C4)

  Granted Lawful development 6 docs

• 137 Ash Grove, Hounslow, TW5 9DX

  P/2024/2699 Submitted 8 Aug 2024 75m away

  Certificate of lawfulness for the existing change of use from a residential dwelling (C3) to house of multiple occupation (C4)

  Granted Lawful development 7 docs
  Domestic

• 150 Ash Grove, Hounslow, Middlesex, TW5 9DR

  P/2025/3514 Submitted 21 Nov 2025 81m away

  Erection of a part two storey, part single storey side and rear extension.

  Granted Householder Extension 9 docs
  Small domestic

• 2 ASH GROVE, HOUNSLOW, TW5 9DR

  P/2021/2231 Submitted 4 Jun 2021 88m away

  Certificate of Lawfulness for the proposed erection of a rear roof extension incorporating hip to gable conversion to the original roof line and the installation of two front roof windows to the house

  Granted Lawful development Extension Loft or dormer +1 6 docs

• 7 LYNMOUTH GARDENS, HOUNSLOW, TW5 9DZ

  PA/2021/3128 Submitted 30 Jul 2021 111m away

  Ground floor rear extension 5.95 metres deep, maximum height of 3.63 metres, 2.75 metres high to the eaves

  Granted Prior approval Extension 5 docs

• PA/2026/2167 Granted

  2 Church Walk, Brentford, TW8 8DB

  Ground floor rear extension 4.50 metres deep, maximum height 4.00 metres, 3.00 metres high to the eaves.

  24 Jul 2026 Prior approval
• PA/2026/2475 Awaiting decision

  4 Upton Road, Hounslow, TW3 3HP

  GS868133219 - Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 3.00 metres high to the eaves

  1 Sep 2026 Prior approval
• PA/2026/2481 Awaiting decision

  6 Speart Lane, Hounslow, TW5 9EF

  Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves

  1 Sep 2026 Prior approval
• PA/2026/2458 Awaiting decision

  82 Ringway, Southall, UB2 5SU

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

  28 Aug 2026 Prior approval
• PA/2026/2461 Awaiting decision

  24 Kingston Avenue, Feltham, TW14 9SL

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

  28 Aug 2026 Prior approval