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Planning application

1 Altwood Close Maidenhead SL6 4PP

Refused Windsor and Maidenhead 25/02397/CPD Cert of Lawfulness of Proposed Dev

Works: Extension 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 single storey side extension is lawful.

As published by the council, reference 25/02397/CPD

Application record

Reference
25/02397/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Decided
Decision
Refuse
Received
11 Sep 2025
Validated
15 Sep 2025
Decided
10 Nov 2025
Ward
Boyn Hill
Parish
Maidenhead Unparished
Decision by
Delegated
Postcode
SL6 4PP

Site history

Applications at this address on the Windsor and Maidenhead register

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

  • 26/00029/FULL Granted

    1 Altwood Close Maidenhead SL6 4PP

    Raising of the ridge and eaves, creation of first floor, two storey front gable, single storey front/side extension, single storey side extension and alterations to fenestration.

    Decided 12 Mar 2026 Full applications
  • 25/02413/CLASAA Granted

    1 Altwood Close Maidenhead SL6 4PP

    Application for prior approval for construction of one additional storey to property with a maximum height of 0.9m and alterations to fenestration.

    Decided 14 Nov 2025

Timeline

Dates from the published record

  1. 11 Sep 2025

    Received by Windsor and Maidenhead

  2. 15 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 10 Nov 2025

    Decision issued: Refuse

  4. 11 Aug 2026

    Added to PlanIndex

Documents

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

8 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

  • 1 Altwood Close Maidenhead SL6 4PP

    25/02413/CLASAA Submitted 12 Sep 2025 0m away

    Application for prior approval for construction of one additional storey to property with a maximum height of 0.9m and alterations to fenestration.

    Granted Windows or glazing 10 docs

  • 1 Altwood Close Maidenhead SL6 4PP

    26/00029/FULL Submitted 6 Jan 2026 4m away

    Raising of the ridge and eaves, creation of first floor, two storey front gable, single storey front/side extension, single storey side extension and alterations to fenestration.

    Granted Full applications Extension Windows or glazing 17 docs
    Small domestic

  • Windyridge 59 Altwood Road Maidenhead SL6 4PN

    25/02295/TPO Submitted 3 Sep 2025 38m away

    T001 - Cherry plum - fell, T003 - Western red cedar - fell, T019 - Copper beech - Tip-reduce small and secondary branches on eastern side to provide up to 1.5m clearance from the house. Crown lift to 2.5m all around by removing small and secondary branches (013/2006/TPO and 014/1978/TPO).

    Granted Trees 9 docs

  • Windyridge 59 Altwood Road Maidenhead SL6 4PN

    22/00298/FULL Submitted 7 Feb 2022 42m away

    Erection of a detached double garage.

    Granted Full applications 10 docs

  • Windyridge 59 Altwood Road Maidenhead SL6 4PN

    26/01080/FULL Submitted 30 Apr 2026 42m away

    Proposed detached Garage, hardstanding and 1no. dropped kerb.

    Refused Full applications 13 docs

  • Windyridge 59 Altwood Road Maidenhead SL6 4PN

    23/00257/VAR Submitted 31 Jan 2023 42m away

    Variation (under Section 73) of Condition 5 (approved plans) to substitute those plans approved under 22/00298 for the Erection of a detached double garage with amended plans.

    Refused Amendments 10 docs

In Windsor and Maidenhead

  • 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
  • 26/01389/CLD Granted

    Redwood 88 Bolton Road Windsor SL4 3JG

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

    5 Jun 2026 Lawful development
  • 26/02060/CPD Awaiting decision

    13 Orchard Grove Maidenhead SL6 6DR

    Certificate of lawfulness to determine whether the proposed hip to gable roof alteration, 2 no. front rooflights and 1 no. rear dormer is lawful.

    20 Aug 2026 Lawful development
  • 26/01564/CPD Refused

    Long Chase Farm Ascot Road Holyport Maidenhead SL6 3LA

    Rear two storey extension to Long Chase Farmhouse under Class A of Part 1 of the GPDO 2015,As Amended.

    25 Jun 2026 Lawful development