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Planning application

16 Downs View, Isleworth, TW7 5HF

Refused Hounslow P/2025/3732 Householder Applications

Works: Extension Loft or dormer Windows or glazing Domestic

Read from the description, not a valuation. How we read the register

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Erection of a rear roof extension with hip to gable conversion and front roof windows to the house.

As published by the council, reference P/2025/3732

Application record

Reference
P/2025/3732
Type
Householder Applications
Status
Decided: REFUSED
Decision
REFUSED
Received
16 Dec 2025
Validated
16 Dec 2025
Decided
10 Feb 2026
Ward
Osterley & Spring Grove
Postcode
TW7 5HF

Site history

Applications at this address on the Hounslow register

This site has had 3 applications since 2025: 2 approved, 1 refused.

  • P/2025/2942 Granted

    16 Downs View, Isleworth, TW7 5HF

    Erection of single storey side extension to the house.

    Decided 5 Dec 2025 Householder
  • P/2025/2940 Granted

    16 Downs View, Isleworth, TW7 5HF

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

    Decided 25 Nov 2025 Lawful development

Timeline

Dates from the published record

  1. 16 Dec 2025

    Received by Hounslow

  2. 10 Feb 2026

    Decision issued: REFUSED

  3. 12 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

10 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

What this refusal means

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.

About householder applications

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.

Nearby applications

Within 500 metres

  • 16 Downs View, Isleworth, TW7 5HF

    P/2025/2942 Submitted 30 Sep 2025 0m away

    Erection of single storey side extension to the house.

    Granted Householder Extension 13 docs
    Small domestic

  • 16 Downs View, Isleworth, TW7 5HF

    P/2025/2940 Submitted 30 Sep 2025 0m away

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

    Granted Lawful development Extension Loft or dormer +1 10 docs

  • 41 NORTHUMBERLAND AVENUE, ISLEWORTH, TW7 5HZ

    P/2019/3927 Submitted 29 Oct 2019 57m away

    Conversion of existing store into a habitable room and replacement of up and over door with new windows

    Granted Householder Windows or glazing 6 docs
    Domestic

  • 6 Roxborough Avenue, Isleworth, TW7 5HG

    P/2026/1070 Submitted 1 Apr 2026 62m away

    Erection of a part first floor rear extension to the house.

    Granted Householder Extension 13 docs
    Domestic

  • 23 Downs View, Isleworth, TW7 5HF

    P/2024/3516 Submitted 22 Oct 2024 72m away

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

    Granted Lawful development Extension Loft or dormer +1 7 docs

  • 23 Downs View, Isleworth, TW7 5HF

    P/2025/2500 Submitted 12 Aug 2025 72m away

    Erection of a single storey ground floor side extension and part rear infill extension to the house. Following the demolition of the garage.

    Withdrawn Householder Extension Demolition 6 docs
    Small domestic

In Hounslow

  • P/2026/2047 Granted

    9 Borough Road, Isleworth, TW7 5DY

    Erection of a single storey rear extension.

    10 Jul 2026 Householder
  • P/2026/1858 Granted

    8 CONNAUGHT AVENUE, HOUNSLOW, TW4 5BW

    Erection of single storey front extension to the outbuilding for used as storage, office and a Gym. Following part demolition of the outbuilding.

    23 Jun 2026 Householder
  • P/2026/2503 Awaiting decision

    25 Arnold Crescent, Isleworth, TW7 7NS

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

    3 Sep 2026 Householder
  • P/2026/1522 Granted

    4 Camborne Way, Hounslow, TW5 0PW

    Erection of a single storey rear extension and reduction in width of the existing side and rear extension.

    20 May 2026 Householder
  • P/2026/2024 Granted

    20 Hartland Road, Isleworth, TW7 6RH

    Erection of a rear roof extension with windows to the front of the house.

    8 Jul 2026 Householder