16 Ashridge Way Sunbury-on-Thames TW16 7RW Data via plota.co.uk

26/00741/CPD - Cert. of Lawful Proposed Use and Dev Approved

Proposal

Certificate of Lawfulness for the proposed erection of a single storey rear extension. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
15 Jul 2026
✓
Approved
7 Sept 2026

Approved on 7 Sept 2026 · Delegated Decision · Last checked 8 Sept 2026

Site constraints 2

Air quality management area: Spelthorne AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Also on the record
Inside the Sunbury-on-Thames 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.

Sales history 1

Last sold for £443,000 in March 2023. Terraced house, freehold.

8 March 2023£443,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

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Important details

Council
Spelthorne
Application type
Cert. of Lawful Proposed Use and Dev
Postcode
TW16 7RW
Received
15 Jul 2026
Validated
15 Jul 2026
Ward
Sunbury Common
Parish
Sunbury Common And Ashford Common ED
Case officer
Show
Target decision
9 Sept 2026
Decision
Grant Cert Lawful Prop Use/Dev
Decision date
7 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Studio Cad Projects Ltd.

How this decision compares

Decided in 54 days from validation, about the council's usual 55 days. Approved, as 87% of extensions here are.

72%decided within 8 weeks
87%approved
353decided in the last year

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

Public comments

No public comments yet.

Last counted 8 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15082531
Comments by
12 Aug 2026
Site or press notice
22 Jul 2026
Statutory expiry
9 Sept 2026
Env. assessment
No
Spelthorne
Planning Authority Score
4.9/10
Below average
#155 of 296 councils
Relevant to this application:
Householder decisions

Spelthorne ranks #124 out of 296 councils for householder decision speed. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Spelthorne decision statistics
Based on MHCLG data, the year to March 2026
81%
Overall approval rate
Below avg (87%) #258 of 296
88%
Householder approved
Below avg (90%) #225 of 296
70%
Decided in 8 weeks
Above avg (63%) #124 of 296
35%
Extended time limit
Below avg (41%) #106 of 296
57%
Minor dwellings approved
67 decided (1-9 homes)
57%
Major dwellings approved
7 decided (10+ homes)
46%
Change of use approved
26 decided
634
Total decisions
122 refused in the year to March 2026

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use