Dormer approval rate in East Hertfordshire

East Hertfordshire approved 73.8% of dormer applications, based on 1,661 decisions analysed.

Last updated: June 2026

73.8%

dormer approval rate

1,661

Dormer decisions

1,225

Approved

436

Refused

73.5%

East Hertfordshire overall

Dormer applications are approved at roughly the same rate as the East Hertfordshire average (73.5%).

How dormer compares in East Hertfordshire

Dormer (1,661 decided)

73.8%

East Hertfordshire all applications (17,065 decided)

73.5%

Planning a dormer in East Hertfordshire?

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Other project types in East Hertfordshire

Rear Extension (5,341 decided)

78.7%

Garage / Parking (4,255 decided)

71.1%

Side Extension (3,015 decided)

74.1%

Outbuilding (1,427 decided)

74.4%

New Build (1,276 decided)

62.3%

Front Extension (1,064 decided)

74.9%

Conservatory (1,052 decided)

82.7%

Change of Use (Residential) (1,033 decided)

62.7%

Loft Conversion (958 decided)

75.3%

Extension (General) (687 decided)

75.4%

Wraparound Extension (531 decided)

78.2%

Annex (349 decided)

63.6%

Basement (230 decided)

72.2%

Hip-to-Gable Conversion (220 decided)

70.9%

Flat Conversion (40 decided)

62.5%

HMO (19 decided)

68.4%

← All East Hertfordshire planning statistics

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