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Planning application

15 Warrington Spur Old Windsor Windsor SL4 2NF

Awaiting decision Windsor and Maidenhead 26/02290/CPD Cert of Lawfulness of Proposed Dev

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Certificate of lawfulness to determine whether the proposed installation of external wall insulation is lawful.

As published by the council, reference 26/02290/CPD

Application record

Reference
26/02290/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Awaiting decision
Received
17 Sep 2026
Validated
5 Oct 2026
Ward
Old Windsor
Parish
Old Windsor Parish
Postcode
SL4 2NF

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 4 applications since 2026.

  • 26/02295/FULL Awaiting decision

    15 Warrington Spur Old Windsor Windsor SL4 2NF

    New front porch (Retrospective).

    Submitted 18 Sep 2026 Full applications
  • 26/02291/FULL Awaiting decision

    15 Warrington Spur Old Windsor Windsor SL4 2NF

    Covered attached rear pergola (Retrospective).

    Submitted 17 Sep 2026 Full applications
  • 26/02205/CPD Awaiting decision

    15 Warrington Spur Old Windsor Windsor SL4 2NF

    Certificate of lawfulness to determine whether the proposed new driveway is lawful.

    Submitted 7 Sep 2026 Lawful development

Timeline

Dates from the published record

  1. 17 Sep 2026

    Received by Windsor and Maidenhead

  2. 5 Oct 2026

    Validated

    Checked as complete and ready for consideration.

  3. 9 Oct 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 30 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Windsor and Maidenhead took a median of 56 days over the applications it decided in the last year.

Documents

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

4 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 happens while it is decided

This application is with Windsor and Maidenhead for determination, against a statutory target of eight weeks. Over the last year Windsor and Maidenhead decided lawful development applications in a median of 50 days. More in our guide to how long planning decisions take.

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

  • 15 Warrington Spur Old Windsor Windsor SL4 2NF

    26/02205/CPD Submitted 7 Sep 2026 50 yards away

    69% historically approved · decision due ~2 Nov

    Certificate of lawfulness to determine whether the proposed new driveway is lawful.

    Awaiting decision Lawful development 5 docs

  • 15 Warrington Spur Old Windsor Windsor SL4 2NF

    26/02295/FULL Submitted 18 Sep 2026 50 yards away

    70% historically approved · decision due ~3 Dec

    New front porch (Retrospective).

    Awaiting decision Full applications Extension 8 docs
    Small domestic

  • 15 Warrington Spur Old Windsor Windsor SL4 2NF

    26/02291/FULL Submitted 17 Sep 2026 50 yards away

    70% historically approved · decision due ~2 Dec

    Covered attached rear pergola (Retrospective).

    Awaiting decision Full applications 9 docs

  • 13 Mills Spur Old Windsor Windsor SL4 2ND

    20/01486/FULL Submitted 24 Jun 2020 50 yards away

    Single storey front extension, infill extension and garage conversion into habitable accommodation with alteration to fenestration.

    Granted Full applications Extension Windows or glazing 15 docs
    Small domestic

  • 48 Ashbrook Road Old Windsor Windsor SL4 2NB

    20/02340/FULL Submitted 9 Sep 2020 50 yards away

    Single storey front/side extension.

    Granted Full applications Extension 7 docs
    Small domestic

  • 39 Orchard Road Old Windsor Windsor SL4 2RZ

    26/01085/TPO Submitted 1 May 2026 50 yards away

    T1 - Sycamore - fell, G2 - Group of Sycamores - crown reduction by 3m overall to leave a final height of 16m and spread of 9m, G3 - Group of Sycamores - fell, T4 - Holly - reduce height by 3m to leave a final height of 6m and spread of 6m, T5 and T6 - 2 x Sycamores - reduce by 5m to previous pruning points to leave final height of 16m and spread of 9m.(022/2003/TPO)

    Granted Trees 7 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