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Planning application

21 Ashbrook Road Old Windsor Windsor SL4 2LT

Granted Windsor and Maidenhead 25/02495/PDXL Permitted Development Extended

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

Single storey rear extension no greater than 5.00m in depth, 2.95m high with an eaves height of 2.95m.

As published by the council, reference 25/02495/PDXL

Application record

Reference
25/02495/PDXL
Type
Permitted Development Extended
Status
Decided
Decision
Prior Approval Not Required
Received
23 Sep 2025
Validated
23 Sep 2025
Decided
30 Oct 2025
Ward
Old Windsor
Parish
Old Windsor Parish
Decision by
Delegated
Postcode
SL4 2LT

Timeline

Dates from the published record

  1. 23 Sep 2025

    Received by Windsor and Maidenhead

  2. 30 Oct 2025

    Decision issued: Prior Approval Not Required

  3. 11 Aug 2026

    Added to PlanIndex

Documents

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

11 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.

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Open the documents

What this grant of permission means

Windsor and Maidenhead granted permission on 30 October 2025, 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 prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 20 Harwood Gardens Old Windsor Windsor SL4 2LJ

    22/00176/FULL Submitted 24 Jan 2022 42m away

    Single storey rear extension and two storey rear extension (part retrospective).

    Granted Full applications Extension 16 docs
    Small domestic

  • 20 Harwood Gardens Old Windsor Windsor SL4 2LJ

    21/00975/FULL Submitted 30 Mar 2021 43m away

    Single storey side extension, two storey rear extension and alterations to fenestration, following demolition of the existing single storey rear element and covered areas.

    Refused Full applications Extension Demolition +1 25 docs
    Small domestic

  • 26 Ashbrook Road Old Windsor Windsor SL4 2LS

    22/01990/FULL Submitted 21 Jul 2022 51m away

    Part single/part two storey side/rear extension with covered area to front elevation and new mono pitched roof to existing single story front element following demolition of existing garage.

    Granted Full applications Extension Demolition 14 docs

  • 37 Ashbrook Road Old Windsor Windsor SL4 2LT

    23/00312/FULL Submitted 6 Feb 2023 59m away

    Single storey front extension, single storey rear extension, enlargement of existing dropped kerb and demolition of existing elements.

    Granted Full applications Extension Demolition 15 docs
    Small domestic

  • 8 Ashbrook Road Old Windsor Windsor SL4 2LS

    21/02515/CPD Submitted 16 Aug 2021 77m away

    Certificate of lawfulness to determine whether the proposed hip to gable loft conversion with x front rooflights, x1 side rooflight and x1 rear dormer is lawful.

    Granted Lawful development Loft or dormer 5 docs

  • 35 Walpole Road Old Windsor Windsor SL4 2LX

    26/00762/FULL Submitted 25 Mar 2026 88m away

    Single storey rear extension

    Refused Full applications Extension 12 docs
    Small domestic

In Windsor and Maidenhead

  • 26/01912/PDXL Granted

    Fourwinds 2 Green Lane Ascot SL5 7QJ

    Single storey rear extension no greater than 7.46m in depth, 3.20m high with an eaves height of 2.45m.

    3 Aug 2026 Prior approval
  • 26/01831/PDXL Granted

    1 Bell View Windsor SL4 4ET

    Single storey rear extension no greater than 4.30m in depth, 2.80m high with an eaves height of 2.50m.

    27 Jul 2026 Prior approval
  • 26/01894/PDXL Granted

    1 Grange Lane Cookham Maidenhead SL6 9RP

    1No. single storey rear extension and 1No. single storey side/rear extension no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m.

    3 Aug 2026 Prior approval
  • 26/01822/PDXL Granted

    Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB

    Single storey side/rear extension no greater than 8.00m in depth, 4.00m high with an eaves height of 3.80m.

    24 Jul 2026 Prior approval
  • 26/01846/PDXL Granted

    24 New Road Datchet Slough SL3 9JB

    Single storey rear extension no greater than 4.00m in depth, 3.20m high with an eaves height of 3.00m.

    27 Jul 2026 Prior approval