27 Tyrell Gardens Windsor SL4 4DH Data via plota.co.uk

26/02117/CPD - Cert of Lawfulness of Proposed Dev Awaiting decision

Proposal

Certificate of lawfulness to determine whether the proposed garage conversion is lawful. Data via plota.co.uk

View original council record ↗Last checked

Application progress

Received
26 Aug 2026
Decision
Expected by 20 Oct 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 19 Oct 2026, from Windsor and Maidenhead's recent extensions.

Site constraints 1

Also on the record
Inside the Windsor built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 11 September 2026. 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

Application type
Cert of Lawfulness of Proposed Dev
Postcode
SL4 4DH
Received
26 Aug 2026
Validated
26 Aug 2026
Ward
Clewer East
Parish
Windsor Unparished
Case officer
Show
Target decision
20 Oct 2026
Applicant
Show

Decision outlook

Day 17 of the 56-day target. Windsor and Maidenhead usually decides extensions by day 54.

Day 1739 days to the 56-day target
78%decided within 8 weeks
75%approved
640decided in the last year

Plota live figures for extensions decided by Windsor and Maidenhead in the last twelve months, from validation. Windsor and Maidenhead decision record →

Consultation & key dates

Alt. reference
PP-15186863
Statutory expiry
20 Oct 2026
Env. assessment
No
Windsor and Maidenhead
Planning Authority Score
5.3/10
Average
#135 of 296 councils
Relevant to this application:
Householder decisions

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