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Planning application

11 St Marks Place Windsor SL4 3BG

Refused Windsor and Maidenhead 21/03537/CPD Cert of Lawfulness of Proposed Dev

Works: Extension Loft or dormer Small domestic

Read from the description, not a valuation. How we read the register

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Certificate of lawfulness to determine whether the proposed garage conversion, single storey rear extension and x1 front rooflight and x1 rear dormer to facilitate a loft conversion is lawful.

As published by the council, reference 21/03537/CPD

Application record

Reference
21/03537/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Decided
Decision
Refused As published: Refuse
Received
1 Dec 2021
Validated
1 Dec 2021
Decided
26 Jan 2022
Ward
Eton And Castle
Parish
Windsor Unparished
Decision by
Delegated
Postcode
SL4 3BG

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 3 applications since 2021: 2 approved, 1 refused.

  • 22/01250/FULL Granted

    11 St Marks Place Windsor SL4 3BG

    x1 front rooflight and x2 rear rooflights.

    Decided 4 Jul 2022 Full applications
  • 22/00172/CPD Granted

    11 St Marks Place Windsor SL4 3BG

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

    Decided 30 Mar 2022 Lawful development

Timeline

Dates from the published record

  1. 1 Dec 2021

    Received by Windsor and Maidenhead

  2. 26 Jan 2022

    Decision issued: Refuse

  3. 16 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

9 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What this refusal means

Windsor and Maidenhead refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About lawful development applications

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.

Nearby applications

Within 0.3 miles

  • 11 St Marks Place Windsor SL4 3BG

    22/00172/CPD Submitted 24 Jan 2022 50 yards away

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

    Granted Lawful development Extension 8 docs
    Small domestic

  • 11 St Marks Place Windsor SL4 3BG

    22/01250/FULL Submitted 9 May 2022 50 yards away

    x1 front rooflight and x2 rear rooflights.

    Granted Full applications Loft or dormer 11 docs

  • 9 St Marks Place Windsor SL4 3BG

    26/01977/FULL Submitted 11 Aug 2026 50 yards away

    Garage conversion and alterations to fenestration.

    Granted Full applications Windows or glazing 13 docs

  • 17 St Marks Place Windsor SL4 3BG

    21/03447/FULL Submitted 22 Nov 2021 50 yards away

    x2 front rooflights and x2 rear dormers.

    Granted Full applications Loft or dormer 12 docs

  • 17 St Marks Place Windsor SL4 3BG

    20/01326/FULL Submitted 8 Jun 2020 50 yards away

    Single storey rear extension, alteration to pitched roof including raising of parapet, x1 rear rooflight and alterations to fenestration.

    Granted Full applications Extension Loft or dormer +1 15 docs
    Small domestic

  • 5 And 7 St Marks Road Windsor SL4 3BD

    26/00443/TCA Submitted 18 Feb 2026 50 yards away

    (T1) Apple (Malus domestica) - crown reduction back to previous pruning points; (T2) Birch (Betula spp) - reduce lateral growth back to the boundary line and (T3) Cherry (Prunus spp) - crown reduction by approximately one third (circa 1-2 metres).

    Granted Trees 6 docs

In Windsor and Maidenhead

  • 26/02222/CPD Refused

    52 Audley Way Ascot SL5 8EF

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

    Received 8 Sep, published by the council 24 Sep 2026 Lawful development
  • 26/01954/CPD Withdrawn

    Mulberry House Waltham Road Maidenhead SL6 3NH

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

    Received 7 Aug, published by the council 16 Aug 2026 Lawful development
  • 26/01856/CLU Granted

    Apple Tree Cottage And Land Adjacent To Apple Tree Cottage Paley Street Maidenhead

    Certificate of lawfulness to determine whether the existing use of the land as a residential garden incidental to the main dwelling is lawful

    Received 28 Jul, published by the council 24 Aug 2026 Lawful development
  • 26/02022/CPD Refused

    14 Church View White Waltham Maidenhead SL6 3JQ

    Certificate of lawfulness to determine whether the proposed 1no. rear dormer and alterations to fenestration are lawful

    Received 17 Aug, published by the council 2 Sep 2026 Lawful development
  • 26/01862/CLU Granted

    Holyport Pre School Holyport Youth Club Moneyrow Green Holyport Maidenhead SL6 2NA

    Certificate of lawfulness to determine whether the existing use of the site as a pre-school is lawful.

    Received 29 Jul, published by the council 4 Aug 2026 Lawful development