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Flat Conversion approval rate in Spelthorne

Spelthorne approved 31.2% of flat conversion applications, based on 16 decisions analysed.

Last updated: September 2026

31.2%
flat conversion approval rate
16
Flat Conversion decisions
5
Approved
11
Refused
82.5%
Spelthorne overall

Flat Conversion applications are refused more often than the Spelthorne average (82.5%), suggesting the council scrutinises these projects more closely.

How flat conversion compares in Spelthorne

Flat Conversion (16 decided)
31.2%
Spelthorne all applications (1,087 decided)
82.5%

Planning a flat conversion in Spelthorne?

31.2% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.

✓ Your ward's flat conversion approval rate
✓ Nearest comparable flat conversion decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
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Planning professional? PlanningLens runs refusal alerts and evidence packs for Spelthorne and any other published UK council — see the data services →

Other project types in Spelthorne

Rear Extension (661 decided)
85.9%
Garage / Parking (322 decided)
79.8%
Side Extension (245 decided)
83.7%
Dormer (239 decided)
75.7%
Loft Conversion (149 decided)
73.8%
Outbuilding (115 decided)
88.7%
Conservatory (104 decided)
90.4%
74.5%
Front Extension (90 decided)
86.7%
58.7%
87.8%
New Build (55 decided)
80.0%
Extension (General) (54 decided)
77.8%
HMO (54 decided)
42.6%
Annex (12 decided)
75.0%
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