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Planning application

336 St Leonards Road Windsor SL4 3DX

Granted Windsor and Maidenhead 21/01083/FULL Full

Works: Extension

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

Proposal

Two storey side extension.

As published by the council, reference 21/01083/FULL

Application record

Reference
21/01083/FULL
Type
Full
Status
Decided
Decision
Application Permitted
Received
7 Apr 2021
Validated
2 Jun 2021
Decided
1 Dec 2022
Ward
Clewer East
Parish
Windsor Unparished
Decision by
Delegated
Postcode
SL4 3DX

Timeline

Dates from the published record

  1. 7 Apr 2021

    Received by Windsor and Maidenhead

  2. 2 Jun 2021

    Validated

    Checked as complete and ready for consideration.

  3. 1 Dec 2022

    Decision issued: Application Permitted

  4. 3 Sep 2026

    Added to PlanIndex

Documents

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

22 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 1 December 2022, 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 full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 346 St Leonards Road Windsor SL4 3DX

    25/02083/CPD Submitted 15 Aug 2025 39m away

    Certificate of lawfulness to determine whether the proposed single storey outbuildings incidental to the main dwelling are lawful.

    Granted Lawful development 8 docs
    Small domestic

  • 363 St Leonards Road Windsor SL4 3DS

    26/01431/CPD Submitted 10 Jun 2026 58m away

    Certificate of lawfulness to determine whether the proposed 1no. front rooflight, 1no. L-shaped rear dormer with 1no. Juliet balcony and alterations to fenestration are lawful.

    Granted Lawful development Loft or dormer Windows or glazing 10 docs

  • 352 St Leonards Road Windsor SL4 3DX

    24/02818/PDXL Submitted 18 Nov 2024 68m away

    Single storey rear extension no greater than 4.00m in depth, 3.75m high with an eaves height of 3.00m.

    Granted Prior approval Extension 16 docs
    Small domestic

  • 21 Princess Avenue Windsor SL4 3LU

    21/02370/FULL Submitted 2 Aug 2021 99m away

    Single storey side/rear extension.

    Granted Full applications Extension 8 docs
    Small domestic

  • The Stag 300 St Leonards Road Windsor SL4 3DX

    21/03149/LBC Submitted 22 Oct 2021 116m away

    Consent for the installation of x4 traditional hardwood timber framed windows and x1 tongue and groove door to replace existing rotten units.

    Withdrawn Heritage and listed buildings Windows or glazing 9 docs

  • The Stag 300 St Leonards Road Windsor SL4 3DX

    22/03022/LBC Submitted 11 Nov 2022 116m away

    Consent for the retention of the existing configuration of the doors, windows, vents and CCTV, retention of side lean-to, plinth and internal alterations.

    Refused Heritage and listed buildings Windows or glazing 37 docs

In Windsor and Maidenhead

  • 26/00685/FULL Granted

    Blossoms Broomfield Park Sunningdale Ascot SL5 0JT

    Relocation of front entrance door, new front canopy, single storey side infill extension, part single part two storey rear extension, first floor side extension, 1no. front dormer and alterations to fenestration and external finishes following demolition of existing elements.

    16 Mar 2026 Full applications
  • 26/01566/FULL Refused

    20 Victoria Road Eton Wick Windsor SL4 6LY

    New front boundary treatment, piers and gates (part retrospective).

    25 Jun 2026 Full applications
  • 26/01732/FULL Granted

    27 Hemsdale Maidenhead SL6 6SL

    Enlargement and conversion of the existing garage, single storey side/rear extension and alterations to fenestration.

    15 Jul 2026 Full applications
  • 26/01676/FULL Granted

    51 Upper Village Road Ascot SL5 7AJ

    Single storey side/rear extension.

    9 Jul 2026 Full applications
  • 26/01227/FULL Granted

    92 Kennel Ride Ascot SL5 7NW

    Two storey side extension with canopy, single storey rear extension alterations to fenestration and a detached outbuilding ancillary to the main dwelling.

    14 May 2026 Full applications