Land At Silwood Park London Road Sunninghill Ascot Data via plota.co.uk

26/00103/CONDIT - Discharge of Condition Approved
Admin / procedural

Proposal

Details required by Condition 10 (Tree Protection) and Condition 11 (Arboricultural Method Statement) of planning permission for a change of use and refurbishment of the Grade II listed Silwood Manor and attached stables to residential use comprising 21 apartments plus associated external works to provide parking, access, and landscaping. Retention, refurbishment and extension of Silwood Lodge. Erection of 14 new dwellings within the Silwood Park grounds following the demolition of the existing outbuildings including access, parking and landscaping. Reuse of existing site access from London Road. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
15 Jan 2026
✓
Approved
30 Apr 2026

Approved on 30 Apr 2026 · Delegated · Last checked 7 Jul 2026

Documents 10

Decision & officer reports 1

PDF Conditions approval Councils Decision · 30 Apr 2026 View ↗

Statements & assessments 2

PDF Arboricultural method statement for silwood park and appendix 1 Supporting Information - Arboricultural report · 14 Jan 2026 View ↗ PDF Heritage tree service correspondence Correspondence - General · 14 Jan 2026 View ↗

Consultation & comments 1

PDF Conservation comments Consultee - Comments · 22 Jan 2026 View ↗

Other documents 6

PDF Tpp overall Supporting Information - Trees · 29 Apr 2026 View ↗ PDF Tpp 1 of 3 Supporting Information - Trees · 10 Apr 2026 View ↗ PDF Tpp 2 of 3 Supporting Information - Trees · 10 Apr 2026 View ↗ PDF Tpp 3 of 3 Supporting Information - Trees · 10 Apr 2026 View ↗ PDF History log Property History · 16 Jan 2026 View ↗ PDF Applicationformredacted Application Forms · 14 Jan 2026 View ↗

All documents on the council site ↗

Associated applications 6

Site constraints 5

Green belt: London
Inappropriate development needs very special circumstances.
Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm. Some green belt land can count as grey belt, where it does not strongly serve the green belt's purposes. The council decides this in its green belt assessment or on each application, so we do not mark it here.
Read the government guidance ↗
Habitat network: Restorable Habitat
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
2 listed buildings within 150 m of the postcode pin; Inside the Ascot and Sunningdale built-up area; Priority habitat about 45 m away: Deciduous woodland.
Not affected
Outside flood zones 2 and 3 · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council
Windsor and Maidenhead
Application type
Discharge of Condition
Received
15 Jan 2026
Validated
15 Jan 2026
Ward
Sunningdale And Cheapside
Parish
Sunninghill And Ascot Parish
Case officer
Show
Target decision
11 Mar 2026
Decision
Approve Discharge of Condition
Decision date
30 Apr 2026
Decision level
Delegated
Applicant
Show

Consultation & key dates

Alt. reference
PP-14623138
Planning Portal ref
PP-14623138
Statutory expiry
11 Mar 2026
Env. assessment
No

Historical activity at this location

16 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2024 Approved
Header House Imperial College Silwood Park Buckhurst Road Ascot SL5 7PY
Erection of a new modular research facility with solar panels following demolition of exi…
24/01557/FULL
2024 Refused
Steel Construction Institute Unit D Silwood Park Buckhurst Road Ascot SL5 7QN
Prior approval for the change of use from a commercial building (Class E) to residential…
24/02721/CLAMA
2024 Refused
Raplas Technoliges Unit B Silwood Park Buckhurst Road Ascot SL5 7PW
Prior approval for the change of use from a commercial building (Class E) to residential…
24/02719/CLAMA
2024 Refused
Unit A Silwood Park Buckhurst Road Ascot SL5 7PW
Prior approval for the change of use from a commercial building (Class E) to residential…
24/02718/CLAMA
2024 Refused
Steel Construction Institute Unit D Silwood Park Buckhurst Road Ascot SL5 7QN
Provision of bin store in association with existing building (Unit D)
24/02623/FULL
2024 Refused
Raplas Technoliges Unit B Silwood Park Buckhurst Road Ascot SL5 7PW
Provision of bin store in association with existing building (Unit B).
24/02626/FULL
2024 Approved
Unit A Silwood Park Buckhurst Road Ascot SL5 7PW
Refuse store ancillary to the main building (Unit A).
24/02621/FULL
2024 Approved
Imperial College Silwood Park Buckhurst Road Ascot SL5 7PY
Lees House - External lift shaft to south west elevation, alterations to fenestration and…
24/01158/FULL
2024 Refused
Raplas Technoliges Unit B Silwood Park Buckhurst Road Ascot SL5 7PW
Prior approval for the change of use from office and laboratory building (Class E) to res…
24/01213/CLAMA
2024 Refused
Unit A Silwood Park Buckhurst Road Ascot SL5 7PW
Prior approval for the change of use from a commercial building (Class E) to residential…
24/01195/CLAMA
2024 Approved
Header House Imperial College Silwood Park Buckhurst Road Ascot SL5 7PY
Prior notification for the demolition of Header House.
24/01365/DEM
2023 Approved
Munro Building Imperial College Silwood Park Buckhurst Road Ascot
The installation of 6no. external ducts to the existing roof 2no. louvres at first floor…
23/03179/FULL
2023 Approved
Imperial College Silwood Park Buckhurst Road Ascot SL5 7PY
Prior notification for the demolition of 4no. greenhouses.
23/02911/DEM
2022 Approved
East Lodge Buckhurst Road Ascot SL5 7QA
(T1)Cherry - reduce to ground level and (T4 )Goat Willow - reduce to ground level. (001/2…
22/01122/TPO
2017 Approved
Research Laboratories Adjacent Greenhouses Imperial College Silwood Park Buckhurst Road Ascot
Non material amendment to planning permission (16/02245/FULL) for the replacement of a po…
17/00878/NMA
2016 Approved
Research Laboratories Adjacent Greenhouses Imperial College Silwood Park Buckhurst Road Ascot
Erection of additional research building and associated storage buildings
16/02245/FULL
Windsor and Maidenhead
Planning Authority Score
5.3/10
Average
#135 of 296 councils
Relevant to this application:
Change of use

Windsor and Maidenhead is faster than most councils at deciding householder applications, ranking #82 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Windsor and Maidenhead is also one of the strictest councils - it refuses more householder applications than almost any other, with only 74% approved vs 90% nationally.

One of the strictest councils
only 74% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Windsor and Maidenhead decision statistics
Based on MHCLG data, the year to March 2026
72%
Overall approval rate
Below avg (87%) #293 of 296
74%
Householder approved
Below avg (90%) #294 of 296
75%
Decided in 8 weeks
Above avg (63%) #82 of 296
28%
Extended time limit
Below avg (41%) #47 of 296
44%
Minor dwellings approved
156 decided (1-9 homes)
96%
Major dwellings approved
27 decided (10+ homes)
64%
Change of use approved
25 decided
1,530
Total decisions
434 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings