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Planning application

54 St Marys Crescent, Isleworth, TW7 4NA

Awaiting decision Hounslow P/2026/2372 Householder Applications

Works: Extension Windows or glazing Small domestic

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

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Erection of a single storey rear infill extension, conversion of garage into a habitable room, increase in roof height to allow creation of additional bedrooms, front porch extension and repositioning of the existing bay window to the house

As published by the council, reference P/2026/2372

Application record

Reference
P/2026/2372
Type
Householder Applications
Status
REGISTERED: Under Consultation
Received
17 Aug 2026
Validated
17 Aug 2026
Ward
Osterley & Spring Grove
Postcode
TW7 4NA

Comment by 18 September 2026

The council is taking comments on this application until then. Comments go to Hounslow through their own planning portal.

Timeline

Dates from the published record

  1. 17 Aug 2026

    Received by Hounslow

  2. 26 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 12 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 55 days over the applications it decided in the last year.

Documents

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

8 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 happens while it is decided

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 62 days. More in our guide to how long planning decisions take.

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

  • 58 ST MARYS CRESCENT, ISLEWORTH, TW7 4NA

    P/2021/3034 Submitted 26 Jul 2021 16m away

    T1. Eucalyptus - Reduce three lowest limbs overhanging shed back to the boundary line. T2. Holly - Reduce all overhanging lateral growth back to the boundary line.

    Granted Trees 4 docs
    Small domestic

  • 48 St Marys Crescent, Isleworth, TW7 4NA

    P/2025/0719 Submitted 7 Mar 2025 38m away

    Certificate of lawfulness proposed for the installation of solar panels to the front and side of roof of the house.

    Withdrawn Lawful development 4 docs

  • 40 St Marys Crescent, Isleworth, TW7 4NA

    P/2026/0242 Submitted 26 Jan 2026 92m away

    Works to trees in a Conservation Area. Cypress (T1). Reduce branches overhanging boundary fence line by up to 3 metres. Cypress (T2). Reduce branches overhanging boundary fence line by up to 4 metres.

    Granted Trees 4 docs
    Small domestic

  • 38 St Marys Crescent, Isleworth, TW7 4NA

    P/2025/3827 Submitted 2 Jan 2026 103m away

    T1. Hornbeam. Crown lift by removing low branches to 5 metres. Cut back overhang to lawn area by up to 3 metres to reduce overhang and shading. T2. Hawthorn. Crown lift by removing low branches to 4 metres. Cut back overhang to lawn area by up to 2 metres to reduce overhang and shading and balance asymmetric crown. T3. Yew. Fell to ground level. T4. Sycamore. Crown lift by removing low branches to 5 metres (retaining larger southern limb of approximately 160mm diameter and growing towards pergola). Remove crossing branches. Cut back upper crown overhang to pathway by up to 2.5 metres.

    Granted Trees 5 docs

  • 127 Ridgeway Road North, Isleworth, TW7 5LX

    P/2026/2386 Submitted 18 Aug 2026 105m away

    76% historically approved · decision due ~13 Oct

    GS865943799 Erection of a first floor side and a two storey rear extension following demolition of two storey rear extension and conservatory, erection of a front porch and replacement of front elevation windows and dormers to the house

    Awaiting decision Householder Extension Loft or dormer +2 18 docs
    Small domestic

  • 251A Jersey Road, Isleworth, TW7 4RF

    P/2025/3666 Submitted 9 Dec 2025 119m away

    Works to three Gleditsia trees under Tree Preservation Order number 570 - 2 metre crown reduction and crown lifting by up to 1 metre.

    Granted Trees 4 docs

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