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Planning application

23 Harfield Road Sunbury-on-Thames TW16 5PT

Awaiting decision Spelthorne 26/01137/HOU Householder

Works: Extension 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 extension, pergola, garage conversion into habitable space, first-floor front extension, and associated internal alterations.

As published by the council, reference 26/01137/HOU

Application record

Reference
26/01137/HOU
Category
Householder
Status
Awaiting decision
Received
29 Oct 2026
Validated
29 Oct 2026
Ward
Sunbury East
Parish
Lower Sunbury And Halliford ED
Decision by
Delegated Decision
Postcode
TW16 5PT

Comment by 20 November 2026

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

Timeline

Dates from the published record

  1. 29 Oct 2026

    Received by Spelthorne

  2. 2 Nov 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 24 December 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Spelthorne took a median of 56 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Square One Architects Ltd Agent, an architecture practice registered in Covent Garden

Active · incorporated 2015 · Covent Garden

7 applications on PlanIndex · across 3 councils

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

What happens while it is decided

This application is with Spelthorne for determination, against a statutory target of eight weeks. Over the last year Spelthorne decided householder applications in a median of 58 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 0.3 miles

  • 11 Bramwell Close Sunbury-on-Thames TW16 5PU

    23/00077/HOU Submitted 20 Jan 2023 150 yards away

    Proposed garage conversion and replacement of existing garage door with a new window opening and erection of a single storey front extension. Render to the entire ground floor of the property along with alterations to fenestrations and installation of new ground floor openings on the eastern and western flank elevations. Proposed first floor Juliet Balcony at the rear.

    Granted Householder Extension Windows or glazing 29 docs
    Small domestic

  • 23 Bramwell Close Sunbury-on-Thames TW16 5PU

    23/00244/HOU Submitted 27 Feb 2023 200 yards away

    Proposed garage / store conversion with new flat roof over.

    Granted Householder 10 docs
    Domestic

  • Sunbury Sports Association Kenton Court Meadow Lower Hampton Road Sunbury-on-Thames TW16 5PS

    23/00359/FUL Submitted 17 Mar 2023 200 yards away

    Extending the cricket nets facility (currently 4 lanes) by adding 2 x new lanes.

    Granted Full applications 19 docs

  • 34 Lower Hampton Road Sunbury-on-Thames TW16 5PS

    25/01302/HOU Submitted 27 Oct 2025 200 yards away

    Erection of a single-storey rear extension to enlarge the existing kitchen and dining area.

    Granted Householder Extension 20 docs
    Small domestic

  • Sunbury Court Recreation Centre 27 Harfield Road Sunbury-on-Thames TW16 5PT

    26/00089/TCA Submitted 30 Jan 2026 200 yards away

    Tree in Lower Sunbury Conservation Area - 1 x Lime (shown as T72 on plan) to monolith by 7 metres, leaving the tree 5 metres in height.

    Granted Trees 7 docs

  • Sunbury Sports Association Lower Hampton Road Sunbury-on-Thames TW16 5PS

    23/00169/TPO Submitted 13 Feb 2023 250 yards away

    TPO012SUN/64/A2 - 1 x Oak (shown as T1 on submitted plan) lift crown over grass to give a clearance of 5m. TPO012SUN/64/A2 - Trees shown as group by car park on map - 3 x Sycamore, 5 x False Acaica, 1 x Ash, 2 x Horse Chestnut, 1 x Sycamore, 1 x Plum, x1 Oak - lift crown of each tree to give a clearance height of 6m from the ground.

    Granted Trees 7 docs

In Spelthorne

  • 26/00786/HOU Granted

    38 Knightsbridge Crescent Staines-upon-Thames TW18 2QR

    Single storey extension to existing garage following part demolition

    Received 27 Jul, published by the council 30 Jul 2026 Householder
  • 26/00800/HOU Granted

    40 Fontmell Park Ashford TW15 2NW

    Erection of a part single storey / part first floor rear extension and alterations to the roof to provide habitable accommodation.

    Received 29 Jul, published by the council 31 Aug 2026 Householder
  • 26/00875/HOU Granted

    33 Kenyngton Drive Sunbury-on-Thames TW16 7RT

    Erection of a single storey side extension to form larger porch. Following removal of existing porch.

    Received 18 Aug, published by the council 24 Aug 2026 Householder
  • 26/00927/HOU Decided

    10A Park Road Sunbury-on-Thames TW16 5BU

    Two storey side and rear extension and single storey rear extension including front and rear dormers

    Received 3 Sep, published by the council 14 Sep 2026 Householder
  • 26/00942/HOU Granted

    9 Links Road Ashford TW15 3RA

    Erection of a single storey rear extension.

    Received 8 Sep, published by the council 9 Sep 2026 Householder