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Planning application

26/01089/CPD

Fourwinds 2 Green Lane Ascot SL5 7QJ

Granted Windsor and Maidenhead Cert of Lawfulness of Proposed Dev

Proposal

Certificate of lawfulness to determine whether the proposed single storey side extension, single storey rear extension and 1no. outbuilding incidental to the main dwelling are lawful.

As published by the council, reference 26/01089/CPD

Timeline

Dates from the published record

  1. 1 May 2026

    Received by Windsor and Maidenhead

  2. 12 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 6 Jul 2026

    Decision issued: Permitted Development

  4. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

  • 26/01204/PDXL Granted

    Fourwinds 2 Green Lane Ascot SL5 7QJ

    Single storey rear extension no greater than 7.46m in depth, 3.20m high with an eaves height of 2.45m.

    12 May 2026 2m away Prior approval
  • 26/00705/PDXL Refused

    Fourwinds 2 Green Lane Ascot SL5 7QJ

    Single storey rear extension no greater than 8.00m in depth, 3.20m high with an eaves height of 3.00m.

    18 Mar 2026 4m away Prior approval
  • 17/00047/CLPUD Granted

    Springfield Cottage Sunninghill Road Ascot Berkshire SL5 7RP

    Certificate of lawfullness for the proposed erection of a single storey side extension, porch and single storey rear extension following the demolition of existing rear extension.

    2 Feb 2017 149m away Lawful development
  • 16/00852/FUL Decided

    Springfield Cottage Sunninghill Road Ascot Berkshire SL5 7RP

    Roof extension to Springfield cottage and the erection of a 2 bedroom residential dwelling attached to Springfield Cottage and creating 2 off street parking spaces.

    9 Sep 2016 149m away Full applications
  • 16/00674/FUL Granted

    Primrose Cottage Sunninghill Road Ascot Berkshire SL5 7RP

    Proposed insertion of new first floor window in east elevation

    25 Jul 2016 173m away Full applications
  • 22/03183/FULL Refused

    Wisteria Cottage Cheapside Road Ascot SL5 7QH

    Single storey side extension with covered porch, single storey rear infill extension, replace flat roof with pitched roof to single storey rear element, replacement roof and raising of the ridge, 2no. front dormers, alterations to fenestration and 2no.parking spaces following the demolition of the greenhouse and garage.

    28 Nov 2022 187m 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