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Planning application

9 Avondale Avenue Staines-upon-Thames TW18 2PT

Awaiting decision Spelthorne 26/00971/CPD

Works: Loft or dormer Windows or glazing

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

Proposal

Certificate of Lawfulness for proposed development for a garage conversion to habitable accommodation facilitated by replacement of existing garage door with UPVC double glazed windows and replacement of existing garage roof and installation of x2 Velux roof windows in main house roof and installation of new window in rear gable wall and internal alterations

As published by the council, reference 26/00971/CPD

Application record

Reference
26/00971/CPD
Status
Awaiting decision
Received
17 Sep 2026
Validated
17 Sep 2026
Postcode
TW18 2PT

Timeline

Dates from the published record

  1. 17 Sep 2026

    Received by Spelthorne

  2. 28 Sep 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 12 November 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.

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's median decision took 56 days. More in our guide to how long planning decisions take.

About this record

The published feed does not state which type of application this is; the register entry on Spelthorne's portal will say. Our guide explains the common types.

Nearby applications

Within 0.3 miles

  • 8 Avondale Avenue Staines-upon-Thames TW18 2PN

    19/01648/HOU Submitted 10 Dec 2019 50 yards away

    Erection of a single storey rear extension following demolition of existing conservatory and roof alterations to include raising the ridge height with hip to gable extensions and the installation of 2 no. front facing and 1 no. rear facing dormers.

    Granted Householder Extension Loft or dormer +2 14 docs
    Small domestic

  • 24 Avondale Avenue Staines-upon-Thames TW18 2PN

    26/01037/HOU Submitted 1 Oct 2026 100 yards away

    89% historically approved · decision due ~3 Dec

    Erection of a single storey rear infill extensions.

    Awaiting decision Householder Extension
    Small domestic

  • 10 St Olaves Close Staines-upon-Thames TW18 2LH

    26/00651/TPO Submitted 22 Jun 2026 100 yards away

    TPO031STA - Spanish Chestnut (Sweet Chestnut on form) - T1 - Reduce to the old points of reduction and includes all base and epicornic shoots on the trunk

    Granted Trees 7 docs

  • 25 Carlyle Road, Staines-upon-Thames, TW18 2PU

    12/00682/CPD Submitted 24 May 2012 100 yards away

    Application for a certificate of lawfulness for proposed development - alteration of existing hipped end roof to form gable end roof and installation of rear dormer to form loft conversion

    Granted Lawful development Loft or dormer 1 doc

  • 67 Penton Road Staines-upon-Thames TW18 2LB

    21/00986/HOU Submitted 13 Jun 2021 150 yards away

    Erection of single storey rear extension following demolition of existing conservatory

    Granted Householder Extension Demolition 11 docs
    Small domestic

  • 38 Avondale Avenue Staines-upon-Thames TW18 2PN

    21/00858/HOU Submitted 21 May 2021 150 yards away

    (AMENDED DESCRIPTION) Single storey corner infill extension and conversion of integral garage into habitable accomodation

    Granted Householder Extension 8 docs
    Small domestic