26/01170/PDXL

1. 11 May 2026

   Received by Windsor and Maidenhead

2. 4 Jun 2026

   Decision issued: Prior Approval Not Required

3. 25 Jul 2026

   Added to PlanIndex

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.

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

• 26/01823/CPD Awaiting decision

  Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB

  Certificate of lawfulness to determine whether the proposed garage conversion, alterations to fenestration, 1 no. front dormer and 1 no. rear dormer to facilitate a loft conversion is lawful.

  24 Jul 2026 1m away Lawful development
• 26/01169/CPD Refused

  Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB

  Certificate of lawfulness to determine whether the proposed garage conversion, single storey side/rear extension, 1no. dormer to north and 1no. dormer to south elevation and alterations to fenestration are lawful.

  11 May 2026 1m away Lawful development
• 22/03007/PDXL Granted

  Pheasant Cottage Hockett Lane Cookham Maidenhead SL6 9UF

  Single storey rear extension no greater than 8m in depth, 4m high with an eaves height of 2.49m.

  10 Nov 2022 280m away Prior approval
• 22/02572/FULL Granted

  Imbers Grubwood Lane Cookham Maidenhead SL6 9UD

  Widening of the existing driveway and access and new entrance gates.

  22 Sep 2022 299m away Full applications
• 26/00835/FULL Refused

  Southwood Stubbles Lane Cookham Maidenhead SL6 9PX

  Part single, part two-storey, side/rear extension and raising of one existing chimney.

  31 Mar 2026 307m away Full applications
• 22/02843/FULL Granted

  Fernie Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

  Garage conversion, part two storey, part first floor rear extension and alterations to fenestration.

  24 Oct 2022 319m away Full applications

• 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