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Planning application

26/01609/CPD

26 Lawn Close Datchet Slough SL3 9JZ

Awaiting decision Windsor and Maidenhead Cert of Lawfulness of Proposed Dev

Proposal

Certificate of lawfulness to determine whether the proposed hip to gable and 1no. rear dormer following the removal of the existing chimney is lawful.

As published by the council, reference 26/01609/CPD

Timeline

Dates from the published record

  1. 1 Jul 2026

    Received by Windsor and Maidenhead

  2. 25 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Windsor and Maidenhead for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About lawful development applications

How this application type works

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 26/00651/CPD Refused

    1 Leigh Park Datchet Slough SL3 9JP

    Certificate of lawfulness to determine whether the proposed single story side extension and alterations to fenestration following demolition of existing side element is lawful.

    12 Mar 2026 128m away Lawful development
  • 26/00964/CPD Granted

    1 Leigh Park Datchet Slough SL3 9JP

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

    20 Apr 2026 129m away Lawful development
  • 22/02943/FULL Refused

    6 Leigh Park Datchet Slough SL3 9JP

    Part single part two storey rear extension following demolition of existing element.

    3 Nov 2022 169m away Full applications
  • 22/02723/CPD Granted

    6 The Lawn Horton Road Datchet Slough SL3 9HB

    Certificate of lawfulness to determine whether the proposed erection of an outbuilding under Class E of the GPDO is lawful.

    10 Oct 2022 184m away Lawful development
  • 26/00715/FULL Granted

    31 Horton Road Datchet Slough SL3 9EN

    Single storey side infill extension, single storey side/rear extension, partial raising of the ridge to the existing single storey side elements and alterations to fenestration.

    19 Mar 2026 188m away Full applications
  • 22/02737/FULL Granted

    Land To The Rear of 45 To 63 London Road Datchet Slough

    The construction of 80 dwellings with associated access, open space, landscaping and other infrastructure.

    7 Oct 2022 216m away Full applications

In Windsor and Maidenhead

  • 26/01836/CPD Awaiting decision

    Rivendale 22A Gloucester Drive Wraysbury Staines TW18 4TY

    Certificate of lawfulness to determine whether the proposed conversion of the existing garage into habitable space is lawful.

    27 Jul 2026 Lawful development
  • 26/01528/CPD Granted

    Foxley Manor Forest Green Road Holyport Maidenhead SL6 2NW

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

    22 Jun 2026 Lawful development
  • 26/01532/CPD Granted

    72 Highway Avenue Maidenhead SL6 5AQ

    Certificate of Lawfulness to determine whether the proposed rear dormer roof extension and associated internal alterations to enlarge the existing loft accommodation is lawful.

    22 Jun 2026 Lawful development
  • 26/01823/CPD Awaiting decision

    Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB

    Certificate of lawfulness to determine whether the proposed garage conversion, alterations to fenestration, 1 no. front dormer and 1 no. rear dormer to facilitate a loft conversion is lawful.

    24 Jul 2026 Lawful development
  • 26/01772/CPD Granted

    18 Broken Furlong Eton Windsor SL4 6PD

    Certificate of lawfulness to determine whether the proposed erection of a single storey rear detached annex to be used incidental with the host dwelling is lawful.

    20 Jul 2026 Lawful development