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Planning application

26/00454/FULL

6 Castle Avenue Datchet Slough SL3 9BA

Refused Windsor and Maidenhead Full

Proposal

Detached outbuilding with terrace ancillary to the main dwelling.

As published by the council, reference 26/00454/FULL

Timeline

Dates from the published record

  1. 20 Feb 2026

    Received by Windsor and Maidenhead

  2. 16 Apr 2026

    Decision issued: Refuse

  3. 25 Jul 2026

    Added to PlanIndex

What refusal means

The process from here

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 26/01087/FULL Granted

    6 Castle Avenue Datchet Slough SL3 9BA

    Outbuilding ancillary to the main dwelling, with new patio and steps

    1 May 2026 6m away Full applications
  • 23/00353/PDXL Refused

    10 Castle Avenue Datchet Slough SL3 9BA

    Single storey rear extension no greater than 6.7m in depth, 3.6m high with an eaves height of 2.7m.

    8 Feb 2023 24m away Prior approval
  • 26/01525/PDXL Awaiting decision

    Eton Manor 60 Eton Road Datchet Slough SL3 9AY

    Single storey rear extension no greater than 6.00m in depth, 3.00m high with an eaves height of 2.75m.

    22 Jun 2026 58m away Prior approval
  • 26/00561/FULL Refused

    4 Agars Place Datchet Slough SL3 9AH

    Garage conversion to habitable accommodation ancillary to the main dwellinghouse (Retrospective).

    3 Mar 2026 69m away Full applications
  • 26/01265/FULL Awaiting decision

    107 Slough Road Datchet Slough SL3 9AQ

    Single storey rear extension and alterations to fenestration following demolition of existing rear element and 1no. chimney.

    20 May 2026 145m away Full applications
  • 26/00226/PDXL Refused

    107 Slough Road Datchet Slough SL3 9AQ

    Single storey rear extension no greater than 5.50m in depth, 3.85m high with an eaves height of 3.85m.

    27 Jan 2026 148m away Prior approval

In Windsor and Maidenhead

  • 26/00962/FULL Granted

    Bonnicut Barn Bonnicut Court 14 High Street Sunningdale Ascot SL5 0NB

    2no. front dormers, part raising of the front elevation to form a parapet wall and terrace, 3no. front rooflights, 3no. rear dormers and alterations to fenestration. (Part Retrospective).

    20 Apr 2026 Full applications
  • 26/01310/FULL Granted

    6 Gilman Crescent Windsor SL4 4YN

    Single storey front/side extension, relocated front door, two storey rear extension, alterations to fenestration and hardstanding, new steps, 1 no. dropped kerb, following demolition of existing elements

    22 May 2026 Full applications
  • 25/03313/FULL Refused

    Land To The South of Lower Mount Farm Long Lane Cookham Maidenhead

    Erection of a crematorium with ceremony hall and memorial arboretum, associated use of land, PV array, vehicular access, parking, landscaping, pavement and road widening along Long Lane.

    15 Dec 2025 Full applications
  • 26/01387/FULL Granted

    7 Elm Road Windsor SL4 3NB

    Single storey rear/side extension

    5 Jun 2026 Full applications
  • 26/00877/FULL Granted

    45 Queens Close Old Windsor Windsor SL4 2PR

    Two storey front/side extension.

    7 Apr 2026 Full applications