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Planning application

17 Castle Drive Maidenhead SL6 6DB

Refused Windsor and Maidenhead 25/03432/CPD Cert of Lawfulness of Proposed Dev

Works: Loft or dormer Windows or glazing

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, hip to gable, part lowering of the ridge, 1no. side dormer and alterations to fenestration is lawful.

As published by the council, reference 25/03432/CPD

Application record

Reference
25/03432/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Decided
Decision
Refuse
Received
31 Dec 2025
Validated
31 Dec 2025
Decided
25 Feb 2026
Ward
Belmont
Parish
Maidenhead Unparished
Decision by
Delegated
Postcode
SL6 6DB

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 3 applications since 2025: 1 approved, 2 refused.

  • 25/02497/FULL Refused

    17 Castle Drive Maidenhead SL6 6DB

    Raised ridge, 1no. front dormer, 2 no. rear dormers and alterations to the roof and fenestration to facilitate a loft conversion

    Decided 14 Nov 2025 Full applications
  • 25/02245/FULL Granted

    17 Castle Drive Maidenhead SL6 6DB

    Single storey rear extension following demolition of existing outbuilding

    Decided 4 Nov 2025 Full applications

Timeline

Dates from the published record

  1. 31 Dec 2025

    Received by Windsor and Maidenhead

  2. 25 Feb 2026

    Decision issued: Refuse

  3. 11 Aug 2026

    Added to PlanIndex

Documents

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

10 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.

Trade members open them 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 500 metres

  • 17 Castle Drive Maidenhead SL6 6DB

    25/02245/FULL Submitted 1 Sep 2025 2m away

    Single storey rear extension following demolition of existing outbuilding

    Granted Full applications Extension Demolition 15 docs
    Small domestic

  • 17 Castle Drive Maidenhead SL6 6DB

    25/02497/FULL Submitted 23 Sep 2025 2m away

    Raised ridge, 1no. front dormer, 2 no. rear dormers and alterations to the roof and fenestration to facilitate a loft conversion

    Refused Full applications Loft or dormer Windows or glazing 12 docs

  • 22 Raymond Road Maidenhead SL6 6DF

    26/00425/FULL Submitted 17 Feb 2026 33m away

    Subdivision of existing dwelling to form 2 no. dwellings

    Withdrawn Full applications 11 docs
    Several homes

  • 13 Castle Drive Maidenhead SL6 6DB

    26/00153/FULL Submitted 21 Jan 2026 41m away

    Single storey rear extension following demolition of existing conservatory.

    Granted Full applications Extension Demolition 14 docs
    Small domestic

  • 42 Raymond Road Maidenhead SL6 6DF

    22/01238/TPO Submitted 9 May 2022 66m away

    x2 Poplar Trees - crown reduce by 7m to leave a final height of 8m and spread of 3m and removal of dead branches - 21A/2000/TPO.

    Granted Trees 7 docs

  • 38 Raymond Road Maidenhead SL6 6DF

    25/02953/TPO Submitted 7 Nov 2025 70m away

    2 no. Lombardy poplar - Crown reduce to just above the previous reduction points to leave a final height of 7m and spread of 3m, removal of dead branches. (21a/2000/TPO)

    Refused Trees 6 docs

In Windsor and Maidenhead

  • 26/00501/CPU Refused

    143 Cookham Road Maidenhead SL6 7EU

    Certificate of lawfulness to determine whether the proposed use of the dwelling as a small childrens home for up to two children and two carers is lawful.

    25 Feb 2026 Lawful development
  • 26/01763/CPU Refused

    Land At The Junction of Warners Hill And Dean Lane Cookham Maidenhead

    Certificate of lawfulness to determine whether the proposed use of the land as an orchard with mobile poultry run and polytunnel is lawful.

    17 Jul 2026 Lawful development
  • 26/01615/CLU Granted

    Riding Court Farm Riding Court Riding Court Road Datchet Slough SL3 9JT

    Certificate of lawfulness to determine whether the existing units 'JKL' (use class B8) used for storage and distribution; unit 'AB' (use class B8) used for hiring, maintaining, and cleaning concrete screed and machinery and 'storage yard 2' (use class B8) used for the storage of scaffolding is lawful.

    1 Jul 2026 Lawful development
  • 26/01581/CLD Granted

    The George Public House The Brewhouse The Green Holyport Road Holyport Maidenhead

    Certificate of lawfulness to determine whether the existing bollard is lawful.

    26 Jun 2026 Lawful development
  • 26/02117/CPD Awaiting decision

    27 Tyrell Gardens Windsor SL4 4DH

    Certificate of lawfulness to determine whether the proposed garage conversion is lawful.

    26 Aug 2026 Lawful development