Data-backed planning intelligence · 3,200,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Rear Extension approval rate in Dacorum

Dacorum approved 99.6% of rear extension applications, based on 228 decisions analysed.

Last updated: June 2026

99.6%
rear extension approval rate
228
Rear Extension decisions
227
Approved
1
Refused
99.6%
Dacorum overall

Rear Extension applications are approved at roughly the same rate as the Dacorum average (99.6%).

How rear extension compares in Dacorum

Rear Extension (228 decided)
99.6%
Dacorum all applications (1,647 decided)
99.6%

Planning a rear extension in Dacorum?

99.6% 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 rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
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Other project types in Dacorum

Garage / Parking (184 decided)
100.0%
Dormer (97 decided)
100.0%
Loft Conversion (90 decided)
100.0%
Side Extension (77 decided)
100.0%
Outbuilding (58 decided)
100.0%
Front Extension (43 decided)
100.0%
Extension (General) (42 decided)
97.6%
100.0%
Conservatory (26 decided)
100.0%
100.0%
100.0%
New Build (15 decided)
100.0%
Annex (12 decided)
100.0%
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