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Planning application

1 Grange Lane Cookham Maidenhead SL6 9RP

Granted Windsor and Maidenhead 26/01894/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

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.

As published by the council, reference 26/01894/PDXL

Application record

Reference
26/01894/PDXL
Type
Permitted Development Extended
Status
Decided
Decision
Prior Approval Not Required
Received
3 Aug 2026
Validated
3 Aug 2026
Decided
3 Sep 2026
Ward
Bisham And Cookham
Parish
Cookham Parish
Decision by
Delegated
Postcode
SL6 9RP

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 5 applications since 2026: 3 approved, 2 refused.

  • 26/01067/PDXL Refused

    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.

    Decided 29 May 2026 Prior approval
  • 26/00634/PDXL Refused

    1 Grange Lane Cookham Maidenhead SL6 9RP

    2no. single storey side/rear extensions no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m following demolition of existing garage.

    Decided 22 Apr 2026 Prior approval
  • 26/00633/CPD Granted

    1 Grange Lane Cookham Maidenhead SL6 9RP

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

    Decided 18 Mar 2026 Lawful development
  • 26/00632/PDXL Granted

    1 Grange Lane Cookham Maidenhead SL6 9RP

    Single storey rear extension no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m.

    Decided 20 Apr 2026 Prior approval

Timeline

Dates from the published record

  1. 3 Aug 2026

    Received by Windsor and Maidenhead

  2. 11 Aug 2026

    Added to PlanIndex

  3. 3 Sep 2026

    Decision issued: Prior Approval Not Required

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.

Trade members open them from here.

Open the documents

What this grant of permission means

Windsor and Maidenhead granted permission on 3 September 2026, 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

  • 1 Grange Lane Cookham Maidenhead SL6 9RP

    26/00633/CPD Submitted 10 Mar 2026 4m away

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

    Granted Lawful development Extension 10 docs

  • 1 Grange Lane Cookham Maidenhead SL6 9RP

    26/01067/PDXL Submitted 30 Apr 2026 4m away

    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.

    Refused Prior approval Extension 11 docs
    Small domestic

  • 1 Grange Lane Cookham Maidenhead SL6 9RP

    26/00634/PDXL Submitted 10 Mar 2026 6m away

    2no. single storey side/rear extensions no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m following demolition of existing garage.

    Refused Prior approval Extension Demolition 11 docs
    Small domestic

  • 1 Grange Lane Cookham Maidenhead SL6 9RP

    26/00632/PDXL Submitted 10 Mar 2026 11m away

    Single storey rear extension no greater than 8.00m in depth, 3.50m high with an eaves height of 2.50m.

    Granted Prior approval Extension 11 docs
    Small domestic

  • 2 Grange Lane Cookham Maidenhead SL6 9RP

    26/00982/CPD Submitted 21 Apr 2026 24m away

    Certificate of lawfulness to determine whether the proposed replacement front porch, two storey rear extension, single storey side extension, 1no. rear Juliet balcony and alterations to fenestration following demolition of existing front porch and garage are lawful.

    Granted Lawful development Extension Demolition +1 16 docs
    Small domestic

  • 2 Grange Lane Cookham Maidenhead SL6 9RP

    25/03276/PDXL Submitted 10 Dec 2025 24m away

    Single storey rear extension no greater than 8.00m in depth, 3.60m high with an eaves height of 2.80m.

    Granted Prior approval Extension 7 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
  • 26/01822/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
  • 26/01740/PDXL Granted

    Oak Tree Farm Twyford Road Binfield Bracknell RG42 5QD

    Single storey rear extension no greater than 7.06m in depth, 3.40m high with an eaves height of 3.40m.

    15 Jul 2026 Prior approval