1 Grange Lane Cookham Maidenhead SL6 9RP

This site has had 5 applications since 2026: 3 approved, 2 refused.

• 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.

  Decided 3 Sep 2026 Prior approval
• 26/01067/PDXL Refused

  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.

  Decided 29 May 2026 Prior approval
• 26/00634/PDXL Refused

  1 Grange Lane Cookham Maidenhead SL6 9RP

  2no. single storey side/rear extensions no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m following demolition of existing garage.

  Decided 22 Apr 2026 Prior approval
• 26/00633/CPD Granted

  1 Grange Lane Cookham Maidenhead SL6 9RP

  Certificate of lawfulness to determine whether the proposed two storey rear extension is lawful.

  Decided 18 Mar 2026 Lawful development

1. 10 Mar 2026

   Received by Windsor and Maidenhead

2. 20 Apr 2026

   Decision issued: Prior Approval Not Required

3. 25 Jul 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 20 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 1 Grange Lane Cookham Maidenhead SL6 9RP

  26/00634/PDXL Submitted 10 Mar 2026 0.1 miles away

  2no. single storey side/rear extensions no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m following demolition of existing garage.

  Refused Prior approval Extension Demolition 11 docs
  Small domestic

• 1 Grange Lane Cookham Maidenhead SL6 9RP

  26/00633/CPD Submitted 10 Mar 2026 0.1 miles away

  Certificate of lawfulness to determine whether the proposed two storey rear extension is lawful.

  Granted Lawful development Extension 10 docs

• 1 Grange Lane Cookham Maidenhead SL6 9RP

  26/01067/PDXL Submitted 30 Apr 2026 0.1 miles away

  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.

  Refused Prior approval Extension 11 docs
  Small domestic

• 1 Grange Lane Cookham Maidenhead SL6 9RP

  26/01894/PDXL Submitted 3 Aug 2026 0.1 miles away

  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.

  Granted Prior approval Extension 11 docs
  Small domestic

• 2 Grange Lane Cookham Maidenhead SL6 9RP

  26/00982/CPD Submitted 21 Apr 2026 0.1 miles away

  Certificate of lawfulness to determine whether the proposed replacement front porch, two storey rear extension, single storey side extension, 1no. rear Juliet balcony and alterations to fenestration following demolition of existing front porch and garage are lawful.

  Granted Lawful development Extension Demolition +1 16 docs
  Small domestic

• 2 Grange Lane Cookham Maidenhead SL6 9RP

  25/03276/PDXL Submitted 10 Dec 2025 0.1 miles away

  Single storey rear extension no greater than 8.00m in depth, 3.60m high with an eaves height of 2.80m.

  Granted Prior approval Extension 7 docs
  Small domestic

• 26/01684/PDXL Refused

  9 Duncroft Windsor SL4 4HH

  Single storey rear extension no greater than 6.00m in depth, 3.20m high with an eaves height of 2.90m.

  Received 10 Jul, published by the council 11 Aug 2026 Prior approval
• 26/01861/PDXL Granted

  6 Hendons Way Holyport Maidenhead SL6 2LF

  Single storey rear extension no greater than 6.00m in depth, 2.78m high with an eaves height of 2,70m.

  Received 29 Jul, published by the council 4 Aug 2026 Prior approval
• 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.

  Received 3 Aug, published by the council 11 Aug 2026 Prior approval
• 26/01789/PDXL Granted

  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.

  Received 22 Jul, published by the council 31 Jul 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.

  Received 27 Jul, published by the council 31 Jul 2026 Prior approval