55 Blackamoor Lane Maidenhead SL6 8RF

1. 24 Aug 2026

   Received by Windsor and Maidenhead

2. 12 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 19 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 lawful development applications in a median of 50 days. More in our guide to how long planning decisions take.

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.

• 43 Blackamoor Lane Maidenhead SL6 8RA

  23/01427/FULL Submitted 12 Jun 2023 39m away

  Single storey side/rear extension

  Granted Full applications Extension 17 docs
  Small domestic

• 41 Blackamoor Lane Maidenhead SL6 8RA

  21/02065/FULL Submitted 5 Jul 2021 46m away

  New front bay window, single storey side/rear extension and enlargement of an existing rear rooflight.

  Granted Full applications Extension Loft or dormer +1 23 docs
  Small domestic

• 41 Blackamoor Lane Maidenhead SL6 8RA

  21/03285/FULL Submitted 4 Nov 2021 46m away

  New front bay window, single storey side/rear extension and enlargement of an existing rear rooflight.

  Granted Full applications Extension Loft or dormer +1 19 docs
  Small domestic

• 11A - 11B Moorfield Terrace Maidenhead

  21/01801/FULL Submitted 10 Jun 2021 50m away

  Detached outbuilding and increase in height of the existing side boundary wall.

  Granted Full applications 10 docs
  Small domestic

• 34 Blackamoor Lane Maidenhead SL6 8RG

  21/00013/FULL Submitted 4 Jan 2021 51m away

  First floor side extension with undercroft and x2 front rooflights.

  Refused Full applications Extension Loft or dormer 8 docs

• 34 Blackamoor Lane Maidenhead SL6 8RG

  21/02203/FULL Submitted 12 Jul 2021 51m away

  First floor side extension with undercroft, 2no. front rooflights and alterations to fenestration.

  Granted Full applications Extension Loft or dormer +1 9 docs

• 26/01553/CLU Granted

  64 Priors Way Maidenhead SL6 2EN

  Certificate of lawfulness to determine whether the existing use of building as self-contained residential dwelling as per details set out in Statutory Declaration is lawful.

  24 Jun 2026 Lawful development
• 26/02230/CPD Awaiting decision

  15 Castle Avenue Datchet Slough SL3 9BA

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

  9 Sep 2026 Lawful development
• 26/01039/CPD Refused

  Touchen End House Ascot Road Holyport Maidenhead SL6 3JY

  Certificate of lawfulness to determine whether the proposed outbuilding following demolition of existing garage is lawful.

  28 Apr 2026 Lawful development
• 26/02205/CPD Awaiting decision

  15 Warrington Spur Old Windsor Windsor SL4 2NF

  Certificate of lawfulness to determine whether the proposed new driveway is lawful.

  7 Sep 2026 Lawful development
• 26/01648/CPD Granted

  38 Tilstone Close Eton Wick Windsor SL4 6NG

  Certificate of lawfulness to determine whether the proposed formation of habitable room in roofspace with side dormer, 1 No front and side rooflights, 1 No. rear window and part hip to gable is lawful.

  6 Jul 2026 Lawful development