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Planning application

23/00265/CPD

27 Coworth Road Sunningdale Ascot SL5 0NX

Refused Windsor and Maidenhead Cert of Lawfulness of Proposed Dev

Proposal

Certificate of lawfulness to determine whether the proposed second floor front extension with hip to gable, 3 No. front rooflights and rear dormer to facilitate habitable accommodation in roof space is lawful.

As published by the council, reference 23/00265/CPD

Timeline

Dates from the published record

  1. 1 Feb 2023

    Received by Windsor and Maidenhead

  2. 29 Mar 2023

    Decision issued: Refuse

  3. 27 Jul 2026

    Added to PlanIndex

What refusal means

The process from here

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

  • 23/00305/FULL Granted

    16 Coworth Road Sunningdale Ascot SL5 0NX

    Single storey rear extension, hip to gable, 1no. rear dormer and alterations to fenestration.

    6 Feb 2023 59m away Full applications
  • 24/02441/CONDIT Granted

    20 - 22 High Street Sunningdale Ascot

    Details required by Condition 5 (Enclosure to be agreed) of planning permission 22/01683/FULL for a part single part two storey side/rear extension and alterations to fenestration.

    7 Oct 2024 98m away Conditions
  • 22/03214/FULL Refused

    18 High Street Sunningdale Ascot SL5 0NG

    Erection of x2 semi detached houses (Use Class C3) with associated amenity space, landscaping, car and cycle parking and refuse storage following demolition of existing commercial buildings.

    1 Dec 2022 100m away Full applications
  • 26/00467/CONDIT Granted

    18 High Street Sunningdale Ascot SL5 0NG

    Details required by Condition 5 (BNG Plan and HMMP) and 10 (Construction Strategy and WPP) of planning permission 25/02128/FULL for 1no. dwelling with associated parking, refuse and cycle store.

    20 Feb 2026 102m away Conditions
  • 26/00469/CONDIT Granted

    18 High Street Sunningdale Ascot SL5 0NG

    Details required by Condition 3 (External Lighting), 4 (Biodiversity Enhancements), 6 (Bin and Cycle Storage), 11 (ASHP) and 12 (EV Charging) of planning permission 25/02128/FULL for 1no. dwelling with associated parking, refuse and cycle store

    23 Feb 2026 102m away Conditions
  • 22/02763/FULL Refused

    The Garden House Church Lodge Whitmore Lane Ascot SL5 0NT

    Detached outbuilding (Retrospective).

    13 Oct 2022 103m 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