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Planning application

St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

Granted Windsor and Maidenhead 25/02581/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 extension is lawful.

As published by the council, reference 25/02581/CPD

Application record

Reference
25/02581/CPD
Type
Cert of Lawfulness of Proposed Dev
Status
Decided
Decision
Granted As published: Permitted Development
Received
1 Oct 2025
Validated
1 Oct 2025
Decided
23 Oct 2025
Ward
Belmont
Parish
Maidenhead Unparished
Decision by
Delegated
Postcode
SL6 6DU

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 9 applications since 2022: 6 approved, 2 refused.

  • 26/01367/LBC Refused

    St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    Consent for alteration to the front entrance door to Block 6.

    Decided 27 Aug 2026 Heritage and listed buildings
  • 26/01084/LBC Refused

    St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    Consent for the retention of works to Blocks 6 and 8, including replacement of internal doors, erection of subdividing walls, installation of new DDA-compliant toilet, replacement of external DDA ramp, installation of window opening to internal partition and proposed replaced of external double doors to Block 6.

    Decided 27 Aug 2026 Heritage and listed buildings
  • 24/03046/TPO Granted

    St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    (T1) Sycamore - Fell to ground level. (061/1997/TPO)

    Decided 31 Jan 2025 Trees
  • 23/01810/TPO Granted

    St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    Lawson cypress (T30 in TPO) - fell. Common lime (T28 and T29 in TPO) - crown lift to 3m; branch lift to 5m over driveway; prune to give up to 1.5m clearance to the adjacent buildings and crown clean. Robinia (G1 in TPO, most eastern tree) - crown lift to 1.5m and prune to give 5.3m clearance over the road and 1m clearance to the beacon; tip reduce easternmost stem leaning over road by up to 2m. (T2 in TPO) Robinia - prune to give 5.3m clearance over the road, 2.5m clearance over the pavement and 1.5m clearance to bus shelter. (T3 in TPO) Red oak - prune to give 5.3m clearance over the road, 2.5m clearance over the pavement and 1m clearance to the beacon; prune to give 1m clearance to roof of building, retaining primary branches; prune to give 1m clearance to the street sign and up to 0.5m clearance to the hospital sign. (T10 in TPO) Oak - prune to give 5.3m clearance over the road; prune to give up to 1m clearance to overhead wires, no stems or primary branches to be removed; crown clean. (061/1997/TPO).

    Decided 29 Aug 2023 Trees
  • 22/02983/FULL Granted

    St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    Installation of 6 No. Automatic Number Plate Recognition (ANPR) cameras and 2 No. Pay and Display Machines.

    Decided 3 Jan 2023 Full applications
  • 22/02984/LBC Withdrawn

    St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    Consent for the installation of 6 No. Automatic Number Plate Recognition (ANPR) cameras and 2 No. Pay and Display machines.

    Decided 22 Dec 2022 Heritage and listed buildings
  • 22/02920/LBC Granted

    St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    Consent for the demolition of Block 19.

    Decided 20 Apr 2023 Heritage and listed buildings
  • 22/02919/FULL Granted

    St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    Demolition of Block 19.

    Decided 20 Apr 2023 Full applications

Timeline

Dates from the published record

  1. 1 Oct 2025

    Received by Windsor and Maidenhead

  2. 23 Oct 2025

    Decision issued: Permitted Development

  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 23 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 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 0.3 miles

  • St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    23/01810/TPO Submitted 25 Jul 2023 50 yards away

    Lawson cypress (T30 in TPO) - fell. Common lime (T28 and T29 in TPO) - crown lift to 3m; branch lift to 5m over driveway; prune to give up to 1.5m clearance to the adjacent buildings and crown clean. Robinia (G1 in TPO, most eastern tree) - crown lift to 1.5m and prune to give 5.3m clearance over the road and 1m clearance to the beacon; tip reduce easternmost stem leaning over road by up to 2m. (T2 in TPO) Robinia - prune to give 5.3m clearance over the road, 2.5m clearance over the pavement and 1.5m clearance to bus shelter. (T3 in TPO) Red oak - prune to give 5.3m clearance over the road, 2.5m clearance over the pavement and 1m clearance to the beacon; prune to give 1m clearance to roof of building, retaining primary branches; prune to give 1m clearance to the street sign and up to 0.5m clearance to the hospital sign. (T10 in TPO) Oak - prune to give 5.3m clearance over the road; prune to give up to 1m clearance to overhead wires, no stems or primary branches to be removed; crown clean. (061/1997/TPO).

    Granted Trees 12 docs
  • St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    22/02920/LBC Submitted 31 Oct 2022 50 yards away

    Consent for the demolition of Block 19.

    Granted Heritage and listed buildings Demolition 16 docs
  • St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    22/02919/FULL Submitted 31 Oct 2022 50 yards away

    Demolition of Block 19.

    Granted Full applications Demolition 19 docs
  • St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    22/02983/FULL Submitted 8 Nov 2022 50 yards away

    Installation of 6 No. Automatic Number Plate Recognition (ANPR) cameras and 2 No. Pay and Display Machines.

    Granted Full applications 11 docs
  • St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    22/02984/LBC Submitted 8 Nov 2022 50 yards away

    Consent for the installation of 6 No. Automatic Number Plate Recognition (ANPR) cameras and 2 No. Pay and Display machines.

    Withdrawn Heritage and listed buildings 6 docs
  • The Admin Block St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU

    24/02679/CPU Submitted 4 Nov 2024 50 yards away

    Certificate of lawfulness to determine whether a private hire operators licence for taxi services is lawful.

    Refused Lawful development 14 docs

In Windsor and Maidenhead

  • 26/02222/CPD Refused

    52 Audley Way Ascot SL5 8EF

    Certificate of lawfulness to determine whether the proposed single storey rear extension following the removal of the existing conservatory is lawful.

    Received 8 Sep, published by the council 24 Sep 2026 Lawful development
  • 26/01954/CPD Withdrawn

    Mulberry House Waltham Road Maidenhead SL6 3NH

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

    Received 7 Aug, published by the council 16 Aug 2026 Lawful development
  • 26/01856/CLU Granted

    Apple Tree Cottage And Land Adjacent To Apple Tree Cottage Paley Street Maidenhead

    Certificate of lawfulness to determine whether the existing use of the land as a residential garden incidental to the main dwelling is lawful

    Received 28 Jul, published by the council 24 Aug 2026 Lawful development
  • 26/02022/CPD Refused

    14 Church View White Waltham Maidenhead SL6 3JQ

    Certificate of lawfulness to determine whether the proposed 1no. rear dormer and alterations to fenestration are lawful

    Received 17 Aug, published by the council 2 Sep 2026 Lawful development
  • 26/01862/CLU Granted

    Holyport Pre School Holyport Youth Club Moneyrow Green Holyport Maidenhead SL6 2NA

    Certificate of lawfulness to determine whether the existing use of the site as a pre-school is lawful.

    Received 29 Jul, published by the council 4 Aug 2026 Lawful development