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Conservatory approval rate in Hertsmere

Hertsmere approved 82.6% of conservatory applications, based on 109 decisions analysed.

Last updated: March 2026

82.6%
conservatory approval rate
109
Conservatory decisions
90
Approved
19
Refused
85.1%
Hertsmere overall

Conservatory applications are refused more often than the Hertsmere average (85.1%), suggesting the council scrutinises these projects more closely.

How conservatory compares in Hertsmere

Conservatory (109 decided)
82.6%
Hertsmere all applications (3,094 decided)
85.1%

Planning a conservatory in Hertsmere?

82.6% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

✓ Your ward's conservatory approval rate
✓ Nearest comparable conservatory decisions
✓ Refusal triggers specific to your area
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Less than one set of revised drawings.

Other project types in Hertsmere

Rear Extension (924 decided)
83.0%
Dormer (318 decided)
86.2%
Garage / Parking (298 decided)
84.6%
Side Extension (203 decided)
77.3%
Loft Conversion (88 decided)
81.8%
Front Extension (87 decided)
90.8%
Outbuilding (86 decided)
80.2%
88.1%
New Build (62 decided)
72.6%
Extension (General) (55 decided)
85.5%
84.6%
75.0%
Basement (19 decided)
89.5%
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