Borough Report
Harrow
264 determined applications · 2023–2025
Headline findings
47%
Refusal rate
Nearly half of applications refused
Verified
403
Applications analysed
Every small-site application (1–9 units) in the analysis window
Verified
Key findings
Verified
47.0% refusal rate — 124 of 264 decided applications refused
›
Harrow is above the London average. Close to coin-flip odds.
Verified
Design cited in 82.4% of refusal reasons
›
The highest design-citation rate of any London borough. Character sensitivity is extreme.
Indicative
29 conservation areas — high for an outer borough
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Heritage constraints are significant. Conservation areas are concentrated in the town centre and village cores.
What you get
The full report
- 40–55 page report (HTML & PDF) with evidence-graded findings
- Density matrix by site type with P20–P75 ranges
- PTAL-adjusted density lookup table
- Viability model with cliff chart and sensitivity analysis
- Area-level approval rate benchmarks
- Refusal reason analysis with frequency data
- Conservation area risk assessment
Decision tools
- Before-you-bid checklist: site-level due diligence prompts
- Before-you-submit checklist: application quality checks
- Underlying data in Excel for your own analysis
- Market Liquidity analysis (speed-of-sale data)
Methodology
- Complete dataset, not a sample — every determined application
- Four evidence tiers: Verified, Moderate, Indicative, Anecdotal
- Statistical tests with sample sizes and significance levels
Get the report
Borough Intelligence Reports from £1,500. Includes 12 months of free quarterly updates.
View pricing →Reports delivered via the members’ platform. Includes HTML & PDF report, Excel data, and Market Snapshot.
Want to see the data before you buy?
Download the free Market Snapshot. Key findings, one page, no commitment.