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Planning application

3 Gainsborough Drive Maidenhead SL6 3YN

Granted Windsor and Maidenhead 21/01917/CPD Cert of Lawfulness of Proposed Dev

Works: Extension Small domestic

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

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

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

As published by the council, reference 21/01917/CPD

Application record

Reference
21/01917/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Decided
Decision
Permitted Development
Received
21 Jun 2021
Validated
21 Jun 2021
Decided
16 Aug 2021
Ward
Cox Green
Parish
Cox Green Parish
Decision by
Delegated
Postcode
SL6 3YN

Timeline

Dates from the published record

  1. 21 Jun 2021

    Received by Windsor and Maidenhead

  2. 16 Aug 2021

    Decision issued: Permitted Development

  3. 16 Aug 2026

    Added to PlanIndex

Documents

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

7 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 grant of permission means

Windsor and Maidenhead granted permission on 16 August 2021, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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

  • 32 Thurlby Way Maidenhead SL6 3YZ

    22/03329/FULL Submitted 14 Dec 2022 85m away

    Two storey side/rear extension, first floor side extension and alterations to single storey roof on front elevation.

    Granted Full applications Extension 14 docs
    Small domestic

  • 63 Cadwell Drive Maidenhead SL6 3YS

    25/02145/FULL Submitted 20 Aug 2025 103m away

    Single storey side/rear extension, first floor side/rear extension, new pitched roofs to single storey elements and alterations to fenestration.

    Refused Full applications Extension Windows or glazing 14 docs
    Small domestic

  • 18 Kelsey Close Maidenhead SL6 3YW

    22/02185/FULL Submitted 10 Aug 2022 109m away

    Part single, part two storey side extension.

    Granted Full applications Extension 11 docs

  • 46 Thurlby Way Maidenhead SL6 3YZ

    26/00315/CPD Submitted 5 Feb 2026 123m away

    Certificate of lawfulness to determine whether the proposed garage conversion , alterations to roof of the single storey side element and alterations to fenestration are lawful.

    Granted Lawful development Windows or glazing 7 docs
    Small domestic

  • 2 Dunholme End Maidenhead SL6 3YP

    21/01900/FULL Submitted 18 Jun 2021 125m away

    Part garage conversion, first floor front extension, two storey side extension, single storey rear extension and alterations to fenestration, following demolition of the existing single storey rear element.

    Granted Full applications Extension Demolition +1 6 docs
    Small domestic

  • 79 Cadwell Drive Maidenhead SL6 3YS

    21/01876/FULL Submitted 17 Jun 2021 150m away

    Single storey front extension, part single/part two storey side/rear extension, conversion of x1 garage into habitable accommodation, x1 new window to first floor side elevation and alteration to fenestration.

    Granted Full applications Extension Windows or glazing 15 docs
    Small domestic

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