21 Laggan Road Maidenhead SL6 7JY

This site has had 2 applications since 2026: 1 approved, 1 refused.

• 26/00465/CPD Refused

  21 Laggan Road Maidenhead SL6 7JY

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

  Decided 3 Mar 2026 Lawful development

1. 9 Mar 2026

   Received by Windsor and Maidenhead

2. 27 Apr 2026

   Decision issued: Permitted Development

3. 25 Jul 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 27 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 21 Laggan Road Maidenhead SL6 7JY

  26/00465/CPD Submitted 20 Feb 2026 50 yards away

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

  Refused Lawful development Extension 7 docs
  Small domestic

• 11 Laggan Road Maidenhead SL6 7JY

  25/02458/FULL Submitted 19 Sep 2025 50 yards away

  Conversion of existing outbuilding with single storey side extension to form 1 no. dwelling.

  Refused Full applications Extension 12 docs
  Domestic

• 39 Laggan Road Maidenhead SL6 7JY

  22/01244/FULL Submitted 10 May 2022 50 yards away

  Detached rear outbuilding.

  Granted Full applications 7 docs

• 50 Laggan Road Maidenhead SL6 7JZ

  22/02818/FULL Submitted 19 Oct 2022 50 yards away

  Replacement garage.

  Granted Full applications 8 docs

• 37 Laggan Road Maidenhead SL6 7JY

  22/01879/CPD Submitted 12 Jul 2022 100 yards away

  Certificate of lawfulness to determine whether the proposed outbuilding is lawful.

  Granted Lawful development 5 docs

• 37 Laggan Road Maidenhead SL6 7JY

  22/00922/FULL Submitted 4 Apr 2022 100 yards away

  Single storey side/rear extension.

  Granted Full applications Extension 9 docs
  Small domestic

• 26/02222/CPD Refused

  52 Audley Way Ascot SL5 8EF

  Certificate of lawfulness to determine whether the proposed single storey rear extension following the removal of the existing conservatory is lawful.

  Received 8 Sep, published by the council 24 Sep 2026 Lawful development
• 26/01954/CPD Withdrawn

  Mulberry House Waltham Road Maidenhead SL6 3NH

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

  Received 7 Aug, published by the council 16 Aug 2026 Lawful development
• 26/01856/CLU Granted

  Apple Tree Cottage And Land Adjacent To Apple Tree Cottage Paley Street Maidenhead

  Certificate of lawfulness to determine whether the existing use of the land as a residential garden incidental to the main dwelling is lawful

  Received 28 Jul, published by the council 24 Aug 2026 Lawful development
• 26/02022/CPD Refused

  14 Church View White Waltham Maidenhead SL6 3JQ

  Certificate of lawfulness to determine whether the proposed 1no. rear dormer and alterations to fenestration are lawful

  Received 17 Aug, published by the council 2 Sep 2026 Lawful development
• 26/01862/CLU Granted

  Holyport Pre School Holyport Youth Club Moneyrow Green Holyport Maidenhead SL6 2NA

  Certificate of lawfulness to determine whether the existing use of the site as a pre-school is lawful.

  Received 29 Jul, published by the council 4 Aug 2026 Lawful development