Flat Conversion approval rate in Portsmouth

Portsmouth approved 68.7% of flat conversion applications, based on 147 decisions analysed.

Last updated: March 2026

68.7%

flat conversion approval rate

147

Flat Conversion decisions

101

Approved

Refused

88.5%

Portsmouth overall

Flat Conversion applications are refused more often than the Portsmouth average (88.5%), suggesting the council scrutinises these projects more closely.

How flat conversion compares in Portsmouth

Flat Conversion (147 decided)

68.7%

Portsmouth all applications (9,214 decided)

88.5%

Planning a flat conversion in Portsmouth?

68.7% get approved — but the odds vary by street. Your Pro Report 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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Less than one set of revised drawings.