Conservatory approval rate in Harrow
Harrow approved 81.4% of conservatory applications, based on 317 decisions analysed.
Last updated: March 2026
81.4%
conservatory approval rate
317
Conservatory decisions
258
Approved
59
Refused
80.6%
Harrow overall
Conservatory applications are approved at roughly the same rate as the Harrow average (80.6%).
How conservatory compares in Harrow
Conservatory
81.4%
Harrow all applications
80.6%
Planning a conservatory in Harrow?
81.4% 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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✓ Nearest comparable conservatory decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Harrow
78.2%
81.8%
77.3%
74.7%
77.1%
79.1%
92.2%
81.4%
85.0%
82.5%
76.8%
79.1%
80.7%
42.6%
75.0%