Outbuilding approval rate in Dorset

Dorset approved 91.9% of outbuilding applications, based on 1,198 decisions analysed.

Last updated: August 2026

91.9%

outbuilding approval rate

1,198

Outbuilding decisions

1,101

Approved

Refused

92.8%

Dorset overall

Outbuilding applications are approved at roughly the same rate as the Dorset average (92.8%).

How outbuilding compares in Dorset

Outbuilding (1,198 decided)

91.9%

Dorset all applications (25,048 decided)

92.8%

Planning a outbuilding in Dorset?

91.9% 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 outbuilding approval rate
✓ Nearest comparable outbuilding decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect

Free planning check for Dorset →

Other project types in Dorset

Garage / Parking (3,227 decided)

91.3%

Rear Extension (2,047 decided)

93.6%

Extension (General) (1,949 decided)

94.3%

Change of Use (Residential) (1,123 decided)

84.0%

Side Extension (1,119 decided)

94.1%

Dormer (841 decided)

92.4%

Conservatory (702 decided)

97.0%

New Build (511 decided)

83.2%

Annex (435 decided)

88.7%

Loft Conversion (305 decided)

94.1%

Front Extension (287 decided)

95.8%

Wraparound Extension (142 decided)

95.8%

Basement (58 decided)

87.9%

Flat Conversion (32 decided)

90.6%

Hip-to-Gable Conversion (23 decided)

91.3%

HMO (17 decided)

64.7%

← All Dorset planning statistics

Check planning approval patterns, Free