36 Napier Road, Isleworth, TW7 7HP

This site has had 2 applications since 2026: 1 approved, 0 refused.

• P/2026/1897 Granted

  36 Napier Road, Isleworth, TW7 7HP

  Certificate of lawfulness for the proposed erection of a rear roof extension.

  Decided 19 Aug 2026 Lawful development

1. 24 Aug 2026

   Received by Hounslow

2. 28 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 2 Sep 2026

   Added to PlanIndex

4. 10 Sep 2026

   Status changed to REGISTERED: Under Consultation

   Previously REGISTERED: Valid.

5. 6 Oct 2026

   Status changed to REGISTERED: Under Assessment

   Previously REGISTERED: Under Consultation.

6. Decision

   Awaiting decision

   Decision expected by 23 October 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.

• 36 Napier Road, Isleworth, TW7 7HP

  P/2026/1897 Submitted 25 Jun 2026 50 yards away

  Certificate of lawfulness for the proposed erection of a rear roof extension.

  Granted Lawful development Extension 8 docs

• 40 Napier Road, Isleworth, TW7 7HP

  P/2026/1582 Submitted 27 May 2026 50 yards away

  Works to trees in a conservation area. T1 Olive. Reduce overhanging branches to No.48 Eve Road back towards the boundary, removing 2-3 limbs back to main stem, and removing approximately 2 metres of overhang. Final height is unchanged at 8m and final spread of 5m. T2 Crab Apple. Reduce any overhang to No.48 Eve Road back towards the boundary, cutting to suitable growth points, or back to main stem where appropriate. Final height is unchanged at 3m and final spread of 2.5m.

  Granted Trees 4 docs

• 51 Napier Road, Isleworth, TW7 7HP

  P/2026/0412 Submitted 10 Feb 2026 50 yards away

  Erection of a single storey side infill and rear extension to the house following the demolition of the existing extension.

  Granted Householder Extension Demolition 10 docs
  Small domestic

• 42 EVE ROAD, ISLEWORTH, TW7 7HS

  P/2023/0212 Submitted 23 Jan 2023 50 yards away

  Erection of a single storey side and rear extension to the house.

  Granted Householder Extension 11 docs
  Small domestic

• 39 Napier Road, Isleworth, TW7 7HP

  P/2025/3157 Submitted 20 Oct 2025 50 yards away

  Works to trees in a Conservation Area. Cherry (Prunus species) T1. Fell to ground level

  Granted Trees 4 docs

• 31 EVE ROAD, ISLEWORTH, TW7 7HS

  P/2021/2636 Submitted 28 Jun 2021 50 yards away

  Demolition of existing rear extension and erection of a single storey rear extension.

  Granted Householder Extension Demolition 4 docs
  Small domestic

• P/2026/2304 Granted

  18 Clifden Road, Brentford, TW8 0PF

  Erection of a side and rear extensions.

  Received 7 Aug, published by the council 12 Aug 2026 Householder
• P/2026/2804 Awaiting decision

  128 Durham Road, Feltham, TW14 0AE

  Erection of a detached outbuilding in the rear garden following demolition of existing shed.

  Received 2 Oct, published by the council 9 Oct 2026 Householder
• P/2026/2301 Granted

  4 Glebe Street, Chiswick, W4 2BG

  Erection of a front side and rear side infill extensions with alterations to the rear elevation, a rear side first floor infill extension with replacement of windows to the rear elevation and installation of new rooflights to the existing ground floor infill extension of the house

  Received 7 Aug, published by the council 16 Aug 2026 Householder
• P/2026/1167 Granted

  20 Firs Drive, Hounslow, TW5 9TD

  Erection of part one, part two-storey side extension following demolition of existing garage and part one, part two-storey rear extension. Raising of roof ridge, erection of rear roof extensions, and installation of one front roof window.

  Received 15 Apr, published by the council 26 Jul 2026 Householder
• P/2026/2025 Granted

  1 Kneller Gardens, Isleworth, TW7 7NP

  Erection of a single storey rear and first floor side extension incorporating the conversion of the existing garage to a habitable room

  Received 8 Jul, published by the council 26 Jul 2026 Householder