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Planning application

20 Parkwood Road, Isleworth, TW7 5HA

Refused Hounslow P/2025/3768 Householder Applications

Works: Extension Windows or glazing Small 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

Retrospective application for the erection of a single storey rear infill extension and the installation of a window to the front elevation.

As published by the council, reference P/2025/3768

Application record

Reference
P/2025/3768
Type
Householder Applications
Status
Refused As published: Decided: REFUSED
Decision
Refused As published: REFUSED
Received
19 Dec 2025
Validated
19 Dec 2025
Decided
13 Feb 2026
Ward
Osterley & Spring Grove
Postcode
TW7 5HA

Site history

Applications at this address on the Hounslow register

This site has had 4 applications since 2024: 2 approved, 1 refused.

  • P/2026/2445 Awaiting decision

    20 Parkwood Road, Isleworth, TW7 5HA

    Revised single storey rear infill extension, installation of drainage channel adjacent to the front boundary, and reduction in height of front gate and piers.

    Submitted 26 Aug 2026 Householder
  • PA/2024/4141 Granted

    20 Parkwood Road, Isleworth, TW7 5HA

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

    Decided 9 Jan 2025 Prior approval
  • P/2024/4142 Granted

    20 Parkwood Road, Isleworth, TW7 5HA

    Certificate of Lawfulness for the proposed front porch extension and erection of rear garden outbuilding.

    Decided 23 Jan 2025 Lawful development

Timeline

Dates from the published record

  1. 19 Dec 2025

    Received by Hounslow

  2. 13 Feb 2026

    Decision issued: REFUSED

  3. 12 Aug 2026

    Added to PlanIndex

Documents

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

7 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.

Watch members (£5 a month) open the document list 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 0.3 miles

  • 20 Parkwood Road, Isleworth, TW7 5HA

    PA/2024/4141 Submitted 9 Dec 2024 50 yards away

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

    Granted Prior approval Extension 5 docs

  • 20 Parkwood Road, Isleworth, TW7 5HA

    P/2026/2445 Submitted 26 Aug 2026 50 yards away

    75% historically approved · decision due ~21 Oct

    Revised single storey rear infill extension, installation of drainage channel adjacent to the front boundary, and reduction in height of front gate and piers.

    Awaiting decision Householder Extension 9 docs
    Small domestic

  • 20 Parkwood Road, Isleworth, TW7 5HA

    P/2024/4142 Submitted 7 Dec 2024 50 yards away

    Certificate of Lawfulness for the proposed front porch extension and erection of rear garden outbuilding.

    Granted Lawful development Extension 5 docs
    Small domestic

  • 22 Parkwood Road, Isleworth, TW7 5HA

    P/2025/2749 Submitted 11 Sep 2025 50 yards away

    Erection of a single storey rear extension and existing garage partial conversion into habitable space.

    Granted Householder Extension 22 docs
    Small domestic

  • 1 Parkwood Road, Isleworth, TW7 5HE

    P/2026/0769 Submitted 6 Mar 2026 50 yards away

    Erection of a single-storey rear and side extension.

    Granted Householder Extension 15 docs
    Small domestic

  • 1 Parkwood Road, Isleworth, TW7 5HE

    P/2026/0699 Submitted 2 Mar 2026 50 yards away

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

    Granted Lawful development Extension Windows or glazing 10 docs

In Hounslow

  • 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