South East Water The Keleher Water Treatment Works Monkey Island Lane Bray Maidenhead SL6 2AZ

This site has had 2 applications since 2020: 2 approved, 0 refused.

• 20/02596/CONDIT Granted

  South East Water The Keleher Water Treatment Works Monkey Island Lane Bray Maidenhead SL6 2AZ

  Details required by condition 15 (contamination) of planning permission 17/03288/FULL for proposed improvement works to water treatment works including new process and filter plant, tanks, kiosks and associated works, replacement landscaped areas, alterations to internal access road within the site and creation of areas of hardstanding for operational purposes. Replacement of existing fence along the western boundary with a security fence 3.5m high. Temporary contractor's compound with temporary offices, welfare facilities, parking area and storage areas on land north of the existing operational site, with temporary gated access off Monkey Island Lane.

  Decided 30 Nov 2020 Conditions

1. 14 Apr 2020

   Received by Windsor and Maidenhead

2. 2 Nov 2020

   Decision issued: Application Permitted

3. 12 Oct 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 2 November 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.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• South East Water The Keleher Water Treatment Works Monkey Island Lane Bray Maidenhead SL6 2AZ

  20/02596/CONDIT Submitted 2 Oct 2020 50 yards away

  Details required by condition 15 (contamination) of planning permission 17/03288/FULL for proposed improvement works to water treatment works including new process and filter plant, tanks, kiosks and associated works, replacement landscaped areas, alterations to internal access road within the site and creation of areas of hardstanding for operational purposes. Replacement of existing fence along the western boundary with a security fence 3.5m high. Temporary contractor's compound with temporary offices, welfare facilities, parking area and storage areas on land north of the existing operational site, with temporary gated access off Monkey Island Lane.

  Granted Conditions 66 docs
  Small domestic

• Land North West of South East Water The Keleher Water Treatment Works Monkey Island Lane Bray Maidenhead

  20/02424/FULL Submitted 17 Sep 2020 200 yards away

  Change of use of enclosed area from use for outdoor leisure and recreation (Use Class F2) to use as a pre-school (Use Class E) - retrospective.

  Withdrawn Full applications 41 docs

• Land North West of South East Water The Keleher Water Treatment Works Monkey Island Lane Bray Maidenhead

  21/00038/FULL Submitted 8 Jan 2021 200 yards away

  Change of use of enclosed area from use for outdoor leisure and recreation (Use Class F2) to use as a pre-school (Use Class E) including retention of existing structures - retrospective.

  Granted Full applications 49 docs

• Land North West of South East Water The Keleher Water Treatment Works Monkey Island Lane Bray Maidenhead

  20/00556/FULL Submitted 2 Mar 2020 200 yards away

  Change of use of the site from D2 (Assembly and Leisure) to D1 (Pre-school) - retrospective.

  Withdrawn Full applications 26 docs

• Summerleaze Monkey Island Lane Bray Maidenhead SL6 2ED

  20/02749/CONDIT Submitted 19 Oct 2020 250 yards away

  Details required by condition 5 (material samples) of planning permission 17/00514 for demolition of existing sheds and offices, re-location of weighbridge and construction of workshop building for servicing and maintenance of vehicles based at the site, with attached canteen / restroom.

  Granted Conditions Demolition 5 docs

• Bridge To North West of Bray Lake Car Park Monkey Island Lane Bray Maidenhead

  22/01727/FULL Submitted 24 Jun 2022 300 yards away

  70% historically approved · decision due ~14 Dec

  Replacement bridge (Retrospective)

  Awaiting decision Full applications 14 docs

• 26/00814/VAR Granted

  Land West of Switchback Road North And North of Nightingale Lane Maidenhead

  Variation (under Section 73a) of planning permission 21/02963/FULL to vary the wording of Condition 8 (Drainage), 9 (Vehicles), 10 (Landscaping) and 11 (Painting) without complying with one month time limit.

  Received 27 Mar, published by the council 25 Jul 2026 Amendments
• 26/01411/VAR Granted

  Whiteladies Park Prince Albert Drive Ascot SL5 8AQ

  Variation (under Section 73) of Condition 11 to substitute those plans approved under 25/03016/FULL for the Redevelopment of existing dwelling, including demolition and reconstruction of western extension, the construction of an eastern extension including an indoor swimming pool, and creation of a basement area with amended plans.

  Received 8 Jun, published by the council 25 Jul 2026 Amendments
• 26/01792/VAR Granted

  Silver Birches St Marys Road Ascot SL5 9JE

  Variation (under Section 73) of Condition 9 (Approved Plans) to substitute those plans approved under 26/00205/FULL for a raised ridge, 2 no. front dormers and 1 no. rear dormer, 1no. side bay window, new chimney, single storey side/rear extension, alterations to fenestration and hardstanding, following demolition of existing elements with amended plans.

  Received 22 Jul, published by the council 31 Jul 2026 Amendments
• 26/02420/NMA Awaiting decision

  Development At King Street And Queen Street And Broadway Maidenhead

  Non material amendments to planning permission 25/00066/VAR as per covering letter.

  Received 2 Oct, published by the council 9 Oct 2026 Amendments
• 26/02152/NMA Granted

  Land Bounded By Ascot Fire Station Station Hill And West of Hermitage Parade And South of High Street Ascot SL5 7HF

  Non material amendments to planning permission 25/01050/FULL to amend the wording of Condition 8 (Bat Mitigation Scheme).

  Received 1 Sep, published by the council 8 Sep 2026 Amendments