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Planning application

1 Colenorton Crescent Eton Wick Windsor SL4 6NW

Refused Windsor and Maidenhead 25/03099/CPD Cert of Lawfulness of Proposed Dev

Works: Loft or dormer

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 Loft Conversion with rear dormer and hip to gable conversion. Three rooflights to front elevation. is lawful.

As published by the council, reference 25/03099/CPD

Application record

Reference
25/03099/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Decided
Decision
Refused As published: Refuse
Received
25 Nov 2025
Validated
8 Dec 2025
Decided
23 Jan 2026
Ward
Eton And Castle
Parish
Eton Town Council
Decision by
Delegated
Postcode
SL4 6NW

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 4 applications since 2025: 2 approved, 2 refused.

  • 26/00970/FULL Granted

    1 Colenorton Crescent Eton Wick Windsor SL4 6NW

    Garage conversion, 2no. single storey side/rear extensions and alterations to fenestration.

    Decided 15 Jul 2026 Full applications
  • 26/00390/CPD Granted

    1 Colenorton Crescent Eton Wick Windsor SL4 6NW

    Certificate of lawfulness to determine whether the proposed loft conversion with hip to gable roof alteration, 1no. rear dormer with 1 no. rear juliet balcony and alterations to fenestration to include 3 no. front rooflights is lawful.

    Decided 18 Mar 2026 Lawful development
  • 25/03098/FULL Refused

    1 Colenorton Crescent Eton Wick Windsor SL4 6NW

    Garage conversion, single storey side extension, single storey side/rear extension and new hardstanding.

    Decided 2 Feb 2026 Full applications

Timeline

Dates from the published record

  1. 25 Nov 2025

    Received by Windsor and Maidenhead

  2. 8 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 23 Jan 2026

    Decision issued: Refuse

  4. 11 Aug 2026

    Added to PlanIndex

Documents

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

5 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.

Watch members (£5 a month) open the document list from here.

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

  • 1 Colenorton Crescent Eton Wick Windsor SL4 6NW

    25/03098/FULL Submitted 25 Nov 2025 50 yards away

    Garage conversion, single storey side extension, single storey side/rear extension and new hardstanding.

    Refused Full applications Extension 6 docs
    Small domestic

  • 1 Colenorton Crescent Eton Wick Windsor SL4 6NW

    26/00970/FULL Submitted 20 Apr 2026 50 yards away

    Garage conversion, 2no. single storey side/rear extensions and alterations to fenestration.

    Granted Full applications Extension Windows or glazing 13 docs
    Small domestic

  • 1 Colenorton Crescent Eton Wick Windsor SL4 6NW

    26/00390/CPD Submitted 13 Feb 2026 50 yards away

    Certificate of lawfulness to determine whether the proposed loft conversion with hip to gable roof alteration, 1no. rear dormer with 1 no. rear juliet balcony and alterations to fenestration to include 3 no. front rooflights is lawful.

    Granted Lawful development Loft or dormer Windows or glazing 5 docs

  • 158 Eton Wick Road Eton Wick Windsor SL4 6NL

    21/00608/FULL Submitted 1 Mar 2021 100 yards away

    Two storey rear extension and alterations to fenestration.

    Granted Full applications Extension Windows or glazing 8 docs

  • 156 Eton Wick Road Eton Wick Windsor SL4 6NL

    22/01563/FULL Submitted 7 Jun 2022 100 yards away

    Single storey front extension, part single part two storey side/rear extension and alterations to fenestration, following demolition of the existing outbuilding.

    Granted Full applications Extension Demolition +1 12 docs
    Small domestic

  • 156 Eton Wick Road Eton Wick Windsor SL4 6NL

    21/03446/FULL Submitted 19 Nov 2021 100 yards away

    Single storey front extension, part single part two storey side/rear extension and alterations to fenestration, following part demolition of the existing outbuilding.

    Granted Full applications Extension Demolition +1 16 docs
    Small domestic

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