Rear Extension approval rate in Barnet

Barnet approved 75.8% of rear extension applications, based on 17,627 decisions analysed.

Last updated: June 2026

75.8%

rear extension approval rate

17,627

Rear Extension decisions

13,354

Approved

4,273

Refused

81.7%

Barnet overall

Rear Extension applications are refused more often than the Barnet average (81.7%), suggesting the council scrutinises these projects more closely.

How rear extension compares in Barnet

Rear Extension (17,627 decided)

75.8%

Barnet all applications (54,846 decided)

81.7%

Planning a rear extension in Barnet?

75.8% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.

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Other project types in Barnet

Garage / Parking (10,782 decided)

82.4%

Dormer (9,394 decided)

81.1%

Loft Conversion (8,299 decided)

80.8%

Side Extension (6,697 decided)

81.6%

Flat Conversion (4,214 decided)

76.2%

Hip-to-Gable Conversion (3,522 decided)

82.1%

Outbuilding (3,194 decided)

78.4%

Wraparound Extension (2,938 decided)

80.2%

Basement (2,613 decided)

83.2%

Change of Use (Residential) (2,026 decided)

69.1%

New Build (1,964 decided)

81.8%

Front Extension (1,813 decided)

78.9%

Conservatory (1,523 decided)

81.3%

Extension (General) (1,278 decided)

82.2%

HMO (619 decided)

43.9%

Annex (205 decided)

71.2%

← All Barnet planning statistics

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