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Planning application

26/01126/CLAMA

Thames House 17 Marlow Road Maidenhead SL6 7AA

Granted Windsor and Maidenhead Prior Approval Class MA

Proposal

Prior approval for the change of use from Commercial, Business and Service (Use Class E) to create 43no. dwellings (Use Class C3).

As published by the council, reference 26/01126/CLAMA

Timeline

Dates from the published record

  1. 7 May 2026

    Received by Windsor and Maidenhead

  2. 25 Jun 2026

    Decision issued: Prior Approval Required and Granted

  3. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About prior approval applications

How this application type works

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

Nearby applications

Within 500 metres

  • 22/03342/PT20AA Refused

    InVentiv Health Thames House 17 Marlow Road Maidenhead SL6 7AA

    Application for prior approval for construction of two additional storeys to building providing 33 additional dwellings

    14 Dec 2022 4m away
  • 23/00313/FULL Withdrawn

    16 Castle Hill Maidenhead SL6 4JJ

    New garage and 1no additional parking spaces with enclosure following the demolition of the existing garage.

    6 Feb 2023 47m away Full applications
  • 26/00649/LBC Granted

    16 Castle Hill Maidenhead SL6 4JJ

    Consent for a single storey side/rear extension following demolition of existing side/rear element.

    11 Mar 2026 53m away Heritage and listed buildings
  • 26/00648/FULL Granted

    16 Castle Hill Maidenhead SL6 4JJ

    Single storey side/rear extension following demolition of existing side/rear element.

    11 Mar 2026 53m away Full applications
  • 22/03070/TCA Granted

    24 Castle Hill Maidenhead SL6 4JJ

    T1 - Eucalyptus - Re pollard at previous pollard knuckles, leaving 25mm stubs. T2 - Cherry - Fell.

    15 Nov 2022 71m away Trees
  • 26/00262/FULL Granted

    9 The Crescent Maidenhead SL6 6AA

    Two storey side extension, hip to gable with habitable accommodation within the roof space, 1no. rear dormer and alterations to fenestration following the demolition of the existing elements.

    30 Jan 2026 71m away Full applications

In Windsor and Maidenhead

  • 26/01831/PDXL Awaiting decision

    1 Bell View Windsor SL4 4ET

    Single storey rear extension no greater than 4.30m in depth, 2.80m high with an eaves height of 2.50m.

    27 Jul 2026 Prior approval
  • 26/01846/PDXL Awaiting decision

    24 New Road Datchet Slough SL3 9JB

    Single storey rear extension no greater than 4.00m in depth, 3.20m high with an eaves height of 3.00m.

    27 Jul 2026 Prior approval
  • 26/01470/PDXL Refused

    14 Church View White Waltham Maidenhead SL6 3JQ

    Single storey rear extension no greater than 6.00m in depth, 3.80m high with an eaves height of 2.80m.

    15 Jun 2026 Prior approval
  • 26/01789/PDXL Awaiting decision

    6 The Dell Maidenhead SL6 3NS

    Single storey rear extension no greater than 3.76m in depth, 2.90m high with an eaves height of 2.90m.

    22 Jul 2026 Prior approval
  • 26/01446/PDXL Granted

    16 Buckland Crescent Windsor SL4 5JS

    Single storey rear extension no greater than 6.00m in depth, 2.81m high with an eaves height of 2.71m.

    10 Jun 2026 Prior approval