Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

New Build approval rate in Hillingdon

Hillingdon approved 81.4% of new build applications, based on 1,679 decisions analysed.

Last updated: September 2026

81.4%
new build approval rate
1,679
New Build decisions
1,367
Approved
312
Refused
77.9%
Hillingdon overall

New Build applications are approved more often than the Hillingdon average (77.9%), suggesting the council is relatively receptive to these projects.

How new build compares in Hillingdon

New Build (1,679 decided)
81.4%
Hillingdon all applications (21,800 decided)
77.9%

Planning a new build in Hillingdon?

81.4% 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 new build approval rate
✓ Nearest comparable new build decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
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Planning professional? PlanningLens runs refusal alerts and evidence packs for Hillingdon and any other published UK council — see the data services →

Other project types in Hillingdon

Rear Extension (10,373 decided)
78.6%
Garage / Parking (7,667 decided)
81.9%
Dormer (5,013 decided)
79.4%
Side Extension (4,912 decided)
71.9%
Outbuilding (2,708 decided)
81.1%
Hip-to-Gable Conversion (2,329 decided)
84.2%
Extension (General) (2,035 decided)
83.8%
74.6%
Front Extension (1,083 decided)
66.4%
Wraparound Extension (1,040 decided)
76.9%
Flat Conversion (920 decided)
73.7%
Conservatory (885 decided)
82.6%
Loft Conversion (499 decided)
74.3%
Basement (480 decided)
85.6%
HMO (355 decided)
57.7%
Annex (131 decided)
42.0%
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