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Planning application

Cancer Research UK 101 High Street Maidenhead SL6 1JX

Refused Windsor and Maidenhead 25/02136/CLAMA Prior Approval Class MA

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Prior approval for the change of use of part of the ground floor and the first floor from Commercial, Business and Service (Use Class E) to create 2no. dwellings (Use Class C3).

As published by the council, reference 25/02136/CLAMA

Application record

Reference
25/02136/CLAMA
Type
Prior Approval Class MA
Status
Decided
Decision
Prior Approval Required and Refused
Received
19 Aug 2025
Validated
20 Aug 2025
Decided
13 Oct 2025
Ward
St Marys
Parish
Maidenhead Unparished
Decision by
Delegated
Postcode
SL6 1JX

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 2 applications since 2025: 0 approved, 1 refused.

  • 26/00693/FULL Withdrawn

    Cancer Research UK 101 High Street Maidenhead SL6 1JX

    1 no. additional front entrance, first floor rear extension, new flat roof to existing rear single storey element with 1 no. rear rooflight, raised roof of building to form 2nd floor level, new PV panels and alterations to the external finish

    Decided 19 May 2026 Full applications

Timeline

Dates from the published record

  1. 19 Aug 2025

    Received by Windsor and Maidenhead

  2. 20 Aug 2025

    Validated

    Checked as complete and ready for consideration.

  3. 13 Oct 2025

    Decision issued: Prior Approval Required and Refused

  4. 11 Aug 2026

    Added to PlanIndex

Documents

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

21 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 this refusal means

Windsor and Maidenhead refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • Cancer Research UK 101 High Street Maidenhead SL6 1JX

    26/00693/FULL Submitted 16 Mar 2026 1m away

    1 no. additional front entrance, first floor rear extension, new flat roof to existing rear single storey element with 1 no. rear rooflight, raised roof of building to form 2nd floor level, new PV panels and alterations to the external finish

    Withdrawn Full applications Extension Loft or dormer 34 docs
    Small domestic

  • Ground And First And Second Floors 103 High Street Maidenhead

    22/03202/FULL Submitted 28 Nov 2022 12m away

    Conversion of the first and second floors to provide 4no. residential unit with refuse and cycle storage at ground floor and alterations to fenestration.

    Granted Full applications Windows or glazing 16 docs

  • K And B Convenience Store 2 Blandy House 3 - 5 King Street Maidenhead SL6 1DZ

    22/02934/FULL Submitted 3 Nov 2022 22m away

    Change of use of Beauty Parlour (Sui Generis) to Off Licence and Convenient Store with signage (part retrospective).

    Withdrawn Full applications 9 docs

  • Footpath Outside of 118 To 120 High Street Maidenhead

    23/00172/FULL Submitted 19 Jan 2023 22m away

    Installation of BT Street Hub and associated display of advertisement to both sides of the unit followng removal of existing BT infrastructure.

    Refused Full applications 21 docs

  • Footpath Outside of 118 To 120 High Street Maidenhead

    23/00171/ADV Submitted 19 Jan 2023 24m away

    Consent to display 1no. internally illuminated street hub with double sided digital screens.

    Refused Advertising 19 docs

  • 87 - 89 High Street Maidenhead SL6 1JX

    22/00854/FULL Submitted 29 Mar 2022 46m away

    Addition of a first and second floor to the rear to provide 5no one bedroom flats and 1no two bedroom flat with communal bin store and entrance at ground floor level via Nicolson's Lane.

    Granted Full applications New dwelling 72 docs

In Windsor and Maidenhead

  • 26/01912/PDXL Granted

    Fourwinds 2 Green Lane Ascot SL5 7QJ

    Single storey rear extension no greater than 7.46m in depth, 3.20m high with an eaves height of 2.45m.

    3 Aug 2026 Prior approval
  • 26/01831/PDXL Granted

    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
  • 26/01894/PDXL Granted

    1 Grange Lane Cookham Maidenhead SL6 9RP

    1No. single storey rear extension and 1No. single storey side/rear extension no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m.

    3 Aug 2026 Prior approval
  • 26/01822/PDXL Granted

    Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB

    Single storey side/rear extension no greater than 8.00m in depth, 4.00m high with an eaves height of 3.80m.

    24 Jul 2026 Prior approval
  • 26/01846/PDXL Granted

    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