Herschel Astronomical Society Observatory Eton College Common Lane Eton Windsor SL4 6DE

1. 1 Oct 2021

   Received by Windsor and Maidenhead

2. 4 Nov 2021

   Validated

   Checked as complete and ready for consideration.

3. 3 Oct 2022

   Decision issued: Application Permitted

4. 16 Aug 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 3 October 2022, 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.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• Land On The East Side of Royal Windsor Way Eton Windsor SL4 6DU

  26/02369/EIASCR Submitted 25 Sep 2026 150 yards away

  78% historically approved · decision due ~20 Nov

  Screening Opinion from the Council under Regulation 6 of the Environmental Impact Assessment Regulations 2017 ("the EIA Regulations"), to confirm whether or not there is a requirement for an Environmental Impact Assessment ("EIA") in relation to the Construction and operation of an agri-photovoltaics facility up to 5 MWp capacity with associated works, equipment and infrastructure.

  Awaiting decision Outline 6 docs

• Buildings Department Colenorton Eton College Common Lane Eton Windsor SL4 6DU

  23/01018/TCA Submitted 25 Apr 2023 150 yards away

  (06GX) Hawthorn - Fell.

  Granted Trees 5 docs

• Buildings Department Colenorton Eton College Common Lane Eton Windsor SL4 6DU

  23/01930/TCA Submitted 4 Aug 2023 200 yards away

  Tree 04WB Arbutus Unedo - cut back crown by up to 2m from adjacent building.

  Granted Trees 5 docs

• Caxton House Eton College Common Lane Eton Windsor SL4 6DU

  24/02349/TCA Submitted 27 Sep 2024 250 yards away

  (T140) Bay laurel (Laurus nobilis) - fell to ground level and remove stump.

  Granted Trees 6 docs

• College Eton College Slough Road Eton Windsor SL4 6DJ

  23/02428/NMA Submitted 4 Oct 2023 300 yards away

  Non material amendments to planning permission 20/02972/VAR for Minor changes to the Rackets Building as follows: Clubroom Brickwork amendment to omit horizontal red brick banding, Clubroom escape door amended to a segmental arch, Clubroom rooflights moved from centre of the roof to the rear of the roof, Dormer window cheeks simplified and overall dormer window size reduced, Gallery lined with timber panels to replace open layout with the adjacent sports hall, Gallery roof amended with rooflights and roof vents, amendment to size of window on north-western elevation, minor internal alterations at ground, first and second floor level and retention of arches in Court 2.

  Granted Amendments Loft or dormer Windows or glazing 35 docs

• College Eton College Slough Road Eton Windsor SL4 6DJ

  21/03420/CONDIT Submitted 18 Nov 2021 300 yards away

  Details required by conditions 7 (racket details), 8 (SSC building details), 10 (printing press building) and 11 (jacks building windows and materials) of application 20/02972/VAR for variation (under Section 73A) of planning permission 20/00160/VAR as approved under 18/02033/FULL to vary Condition 2 (Approved plans) to substitute for amended plans, Condition 8 (SSC Building - samples and plan details) and Condition 11 (Jacks Building - samples and plan details) for the construction of a new school sports centre comprising a 9-court sports hall capable of offering multipurpose indoor sports, x8 squash courts, general fitness spaces, an athlete development programme space including a sprint track, dojo space, physio spaces, classrooms and offices for PE staff and students, a triple height climbing wall space, rifle range and associated plant, storage, WC and changing facilities. Construction of a new Eton Sports and Aquatics Centre comprising a 25m pool with movable floor suitable for swimming, water polo and teaching use, a 4-court sports hall capable of offering multi-purpose indoor sports and exam use, changing facilities, a spectator area at first floor level which also provides a meet-up space and refreshment point for post-match use, associated plant and storage provision, associated car and coach parking and new access track off Slough Road. Refurbishment and extension of the rackets courts building to provide a new clubroom, viewing gallery and extended changing facilities. Refurbishment of the jacks building to provide a fives clubroom and changing facilities. Refurbishment of fives courts, a new printmaking pavilion to house historic printing presses adjacent to Caxton Schools, following demolition of the existing buildings comprising the gymnasium, indoor swimming pool and the outdoor swimming pool complex (Amended Plans).

  Granted Conditions Extension Demolition +1 16 docs

• 26/02029/FULL Granted

  5 Kimber Close Windsor SL4 4BJ

  Single storey rear extension.

  Received 17 Aug, published by the council 27 Aug 2026 Full applications
• 26/01955/FULL Granted

  2 Holmlea Road Datchet Slough SL3 9HQ

  Change of use from a dwellinghouse (Use Class C3) to a children's home (Use Class C2) for up to three children, together with conversion of the garage to an office with an en-suite facilities and alterations to fenestration.

  Received 7 Aug, published by the council 27 Aug 2026 Full applications
• 26/01121/FULL Granted

  Zain House 15 Wilton Crescent Windsor SL4 4YJ

  Single storey side/front extension, first floor extension over existing side element with 1no. Juliet balcony and 1no. Juliet balcony to existing rear elevation.

  Received 6 May, published by the council 11 Aug 2026 Full applications
• 26/01977/FULL Granted

  9 St Marks Place Windsor SL4 3BG

  Garage conversion and alterations to fenestration.

  Received 11 Aug, published by the council 24 Aug 2026 Full applications
• 26/01804/FULL Granted

  16 Devereux Road Windsor SL4 1JJ

  Installation of air conditioning compressor unit to the first floor side elevation.

  Received 23 Jul, published by the council 24 Aug 2026 Full applications