Planning application
St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU
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.
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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.
-
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.
-
24/03046/TPO Granted
St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU
(T1) Sycamore - Fell to ground level. (061/1997/TPO)
-
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).
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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.
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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.
-
22/02920/LBC Granted
St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU
Consent for the demolition of Block 19.
-
22/02919/FULL Granted
St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU
Demolition of Block 19.
Timeline
Dates from the published record
-
1 Oct 2025
Received by Windsor and Maidenhead
-
23 Oct 2025
Decision issued: Permitted Development
-
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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat 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
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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).
Granted Trees 12 docs -
St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU
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
Demolition of Block 19.
Granted Full applications Demolition 19 docs -
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.
Granted Full applications 11 docs -
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.
Withdrawn Heritage and listed buildings 6 docs -
The Admin Block St Marks Hospital 112 St Marks Road Maidenhead SL6 6DU
Certificate of lawfulness to determine whether a private hire operators licence for taxi services is lawful.
Refused Lawful development 14 docs
Other lawful development applications
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.
-
26/01954/CPD Withdrawn
Mulberry House Waltham Road Maidenhead SL6 3NH
Certificate of lawfulness to determine whether the single storey rear extension is lawful.
-
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
-
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
-
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.