91 Duke Street Windsor SL4 1SJ

1. 24 Jul 2020

   Received by Windsor and Maidenhead

2. 24 Aug 2020

   Validated

   Checked as complete and ready for consideration.

3. 2 Oct 2020

   Decision issued: Prior Approval Not Required

4. 27 Sep 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 2 October 2020, 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.

• 89 Duke Street Windsor SL4 1SJ

  20/01901/VAR Submitted 30 Jul 2020 50 yards away

  Variation (under Section 73) of condition 1 (commencement) as approved under 17/01895/FULL for single storey rear extension.

  Withdrawn Amendments Extension 5 docs
  Small domestic

• 30 Vansittart Road Windsor SL4 5BY

  23/02604/CPD Submitted 20 Oct 2023 50 yards away

  Certificate of lawfulness to determine whether 1no. detached outbuilding is lawful.

  Refused Lawful development 8 docs

• Lavender Cottage 32 Vansittart Road Windsor SL4 5BY

  25/02679/CPD Submitted 10 Oct 2025 50 yards away

  Certificate of lawfulness to determine whether the proposed 2no. front rooflights and 1no. rear dormer with juliet balcony is lawful.

  Granted Lawful development Loft or dormer 9 docs

• 78 Duke Street Windsor SL4 1SQ

  21/00634/FULL Submitted 3 Mar 2021 50 yards away

  Single storey side/rear extension with 2no. rooflights.

  Granted Full applications Extension Loft or dormer 8 docs
  Small domestic

• 78 Duke Street Windsor SL4 1SQ

  20/00232/PDXL Submitted 29 Jan 2020 50 yards away

  Single storey rear extension no greater than 3.615m in depth, 3.260m high with an eaves height of 2.300m.

  Granted Prior approval Extension 7 docs
  Small domestic

• 78 Duke Street Windsor SL4 1SQ

  26/00710/CPD Submitted 18 Mar 2026 50 yards away

  Certificate of lawfulness to determine whether the proposed 2 no. front rooflights and rear L-shaped dormer to facilitate a loft conversion is lawful.

  Granted Lawful development Loft or dormer 8 docs

• 26/02170/PDXL Granted

  15 Cell Farm Avenue Old Windsor Windsor SL4 2PD

  Single storey rear extension no greater than 5.00m in depth, 2.85m high with an eaves height of 2.85m following demolition of the existing elements.

  Received 3 Sep, published by the council 12 Sep 2026 Prior approval
• 26/02445/PDXL Awaiting decision

  Mulberry House Waltham Road Maidenhead SL6 3NH

  Single storey rear extension no greater than 7.88m in depth, 3.50m high with an eaves height of 3.00m.

  Received 7 Oct, published by the council 9 Oct 2026 Prior approval
• 26/02001/CLAMA Granted

  158 Blackamoor Lane Maidenhead SL6 8RN

  Prior approval for the change of use of the ground floor from Use Class Eg(iii) to form 8 no. x 1 bedroom flats.

  Received 13 Aug, published by the council 24 Aug 2026 Prior approval
• 26/02425/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.

  Received 5 Oct, published by the council 9 Oct 2026 Prior approval
• 26/02007/PDXL Refused

  18 Bradshaw Close Windsor SL4 5PS

  Single storey rear extension no greater than 3.60m in depth, 3.77m high with an eaves height of 2.43m.

  Received 13 Aug, published by the council 24 Aug 2026 Prior approval