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Planning application

22/02502/CPD

Welton London Road Sunninghill Ascot SL5 0PH

Granted Windsor and Maidenhead Cert of Lawfulness of Proposed Dev

Proposal

Certificate of lawfulness to determine whether the proposed single storey side extension, alterations to fenestration and 2no. detached outbuildings is lawful.

As published by the council, reference 22/02502/CPD

Timeline

Dates from the published record

  1. 13 Sep 2022

    Received by Windsor and Maidenhead

  2. 4 Nov 2022

    Decision issued: Application Permitted

  3. 27 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

  • 22/03166/FULL Granted

    Welton London Road Sunninghill Ascot SL5 0PH

    Replacement dwelling with associated cycle/refuse storage, landscaping and parking following the demolition of the existing dwelling and outbuildings.

    25 Nov 2022 4m away Full applications
  • 26/01221/VAR Granted

    House In The Wood Larch Avenue Ascot SL5 0AP

    Variation (under Section 73a) of Condition 3 to substitute those plans approved under 24/01752/FULL for a Front canopy with balcony above, single storey infill extension, new enclosed courtyard, enlargement of existing conservatory, first floor rear infill extension, enlargement of existing second floor with 1no. rear balcony, enlargement and alterations to existing raised patio and alterations to fenestration and existing chimneys following removal of existing rear dormer (part retrospective) with amended plans.

    14 May 2026 150m away Amendments
  • 26/00020/FULL Awaiting decision

    Land Rear of Cary Cottage London Road Sunninghill Ascot

    2no. detached (self-build) dwellings, hardstanding, landscaping and relocation of access.

    6 Jan 2026 187m away Full applications
  • 26/01435/CPD Awaiting decision

    Shutt End Larch Avenue Ascot SL5 0AP

    Certificate of lawfulness to determine whether the proposed single storey side extension, two story rear extension and alterations to fenestration are lawful.

    10 Jun 2026 188m away Lawful development
  • 25/00025/TPO Awaiting decision

    Land At Silwood Park London Road Sunninghill Ascot

    Refer to schedule of tree works (001/2020/TPO)

    6 Jan 2025 198m away Trees
  • 22/03269/FULL Refused

    Land At Junction of Larch Avenue Ascot And Silwood Road Sunninghill Ascot

    2no. detached dwellings (self build) with associated parking, landscaping and shared access.

    6 Dec 2022 247m 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