Annex approval rate in East Hertfordshire

East Hertfordshire approved 63.9% of annex applications, based on 352 decisions analysed.

Last updated: August 2026

63.9%

annex approval rate

352

Annex decisions

225

Approved

127

Refused

73.6%

East Hertfordshire overall

Annex applications are refused more often than the East Hertfordshire average (73.6%), suggesting the council scrutinises these projects more closely.

How annex compares in East Hertfordshire

Annex (352 decided)

63.9%

East Hertfordshire all applications (17,302 decided)

73.6%

Planning a annex in East Hertfordshire?

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Other project types in East Hertfordshire

Rear Extension (5,401 decided)

78.8%

Garage / Parking (4,325 decided)

71.3%

Side Extension (3,038 decided)

74.2%

Dormer (1,676 decided)

73.9%

Outbuilding (1,446 decided)

74.5%

New Build (1,299 decided)

62.5%

Front Extension (1,069 decided)

75.0%

Conservatory (1,063 decided)

82.8%

Change of Use (Residential) (1,050 decided)

62.9%

Loft Conversion (972 decided)

75.4%

Extension (General) (693 decided)

75.5%

Wraparound Extension (535 decided)

78.3%

Basement (234 decided)

72.6%

Hip-to-Gable Conversion (223 decided)

70.9%

Flat Conversion (41 decided)

63.4%

HMO (20 decided)

70.0%

← All East Hertfordshire planning statistics

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