Extension (General) approval rate in Cornwall

Name: Extension (General) planning approval rate in Cornwall
Creator: PlanningLens
Published: 2026-09-30T18:28:47+00:00
License: https://creativecommons.org/licenses/by/4.0/

Cornwall approved 95.9% of extension (general) applications, based on 4,149 decisions analysed.

Last updated: September 2026

95.9%

extension (general) approval rate

4,149

Extension (General) decisions

3,980

Approved

169

Refused

92.4%

Cornwall overall

Extension (General) applications are approved more often than the Cornwall average (92.4%), suggesting the council is relatively receptive to these projects.

How extension (general) compares in Cornwall

Extension (General) (4,149 decided)

95.9%

Cornwall all applications (18,408 decided)

92.4%

Planning a extension (general) in Cornwall?

95.9% 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 extension (general) approval rate
✓ Nearest comparable extension (general) decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect

Free planning check for Cornwall →

Planning professional? PlanningLens runs refusal alerts and evidence packs for Cornwall and any other published UK council — see the data services →