Basement approval rate in Birmingham

Birmingham approved 79.5% of basement applications, based on 127 decisions analysed.

Last updated: March 2026

79.5%

basement approval rate

127

Basement decisions

101

Approved

Refused

83.8%

Birmingham overall

Basement applications are refused more often than the Birmingham average (83.8%), suggesting the council scrutinises these projects more closely.

How basement compares in Birmingham

Basement (127 decided)

79.5%

Birmingham all applications (33,111 decided)

83.8%

Planning a basement in Birmingham?

79.5% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

✓ Your ward's basement approval rate
✓ Nearest comparable basement decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect

Get Birmingham Pro Report — £79

Less than one set of revised drawings.

Other project types in Birmingham

Rear Extension (13,248 decided)

87.2%

Side Extension (5,640 decided)

87.1%

New Build (3,721 decided)

83.2%

Dormer (2,363 decided)

76.1%

Change of Use (Residential) (1,863 decided)

55.1%

Wraparound Extension (1,842 decided)

87.8%

Garage / Parking (1,578 decided)

79.7%

Front Extension (1,556 decided)

85.3%

HMO (1,002 decided)

60.0%

Loft Conversion (791 decided)

74.1%

Outbuilding (757 decided)

86.0%

Extension (General) (650 decided)

80.8%

Hip-to-Gable Conversion (330 decided)

63.6%

Flat Conversion (297 decided)

52.2%

Conservatory (166 decided)

88.0%

Annex (91 decided)

69.2%

← All Birmingham planning statistics

Check planning approval patterns — Free