15 Cell Farm Avenue Old Windsor Windsor SL4 2PD

1. 3 Sep 2026

   Received by Windsor and Maidenhead

2. 12 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 29 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Windsor and Maidenhead took a median of 55 days over the applications it decided in the last year.

This application is with Windsor and Maidenhead for determination, against a statutory target of eight weeks. Over the last year Windsor and Maidenhead decided prior approval applications in a median of 44 days. More in our guide to how long planning decisions take.

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.

• 5 Cell Farm Avenue Old Windsor Windsor SL4 2PD

  21/00602/FULL Submitted 1 Mar 2021 37m away

  Replacement front porch, single storey side/rear infill extension with new mono pitched roof and alterations to fenestration to the single storey rear element.

  Granted Full applications Extension Windows or glazing 9 docs
  Small domestic

• 3 Cell Farm Avenue Old Windsor Windsor SL4 2PD

  23/02072/FULL Submitted 22 Aug 2023 44m away

  Single storey detached annexe to create self contained living accommodation ancillary to main dwelling following demolition of existing elements.

  Refused Full applications Demolition 15 docs
  Small domestic

• 22 Church Road Old Windsor Windsor SL4 2PL

  22/01292/FULL Submitted 13 May 2022 67m away

  Single storey rear extension and alterations to fenestration.

  Granted Full applications Extension Windows or glazing
  Small domestic

• 6 Meadow Close Old Windsor Windsor SL4 2PB

  22/02799/FULL Submitted 17 Oct 2022 73m away

  Garage conversion, part single, part two storey rear extension, first floor front extension, 2no. front rooflights and 1no. rear dormer.

  Refused Full applications Extension Loft or dormer 10 docs

• 6 Meadow Close Old Windsor Windsor SL4 2PB

  22/03356/FULL Submitted 19 Dec 2022 73m away

  Garage conversion, part single, part two storey rear extension, 2no. front rooflights and 1no. rear dormer.

  Granted Full applications Extension Loft or dormer 10 docs

• 7 Meadow Close Old Windsor Windsor SL4 2PB

  22/01941/CPD Submitted 18 Jul 2022 77m away

  Certificate of lawfulness to determine whether the proposed x2 front rooflights and x1 rear dormer to facilitate a loft conversion and alterations to fenestration and to the rear patio doors is lawful.

  Granted Lawful development Loft or dormer Windows or glazing 8 docs

• 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.

  29 Jul 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.

  3 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.

  22 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.

  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