Data-backed planning intelligence · 3,770,000+ decisions analysed across England

Most Common Planning Applications in Harborough

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Harborough is 16.1% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

3,899 real decisions·13 project types·Updated August 2026
94.4%
Safest: Side Extension
78.3%
Lowest: Change of Use (Residential)
16.1%
Spread
13
Types ranked

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All 13 project types ranked

#TypeDecisionsApprovedRefusedRate
1Side Extension34232319
94.4%
2Conservatory79736
92.4%
3Rear Extension59454549
91.8%
4Front Extension11710710
91.5%
5Wraparound Extension59545
91.5%
6Extension (General)17716116
91.0%
7Outbuilding18416717
90.8%
8Garage / Parking49944554
89.2%
9Dormer1099712
89.0%
10Loft Conversion53476
88.7%
11Annex48417
85.4%
12New Build22018238
82.7%
13Change of Use (Residential)20315944
78.3%
See how this applies to your postcode →

These are council averages. Your property is specific.

A side extension application has a 94.4% approval rate. Change of Use (Residential)? Just 78.3%.
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What the data tells us

1
The range is massive: 78.3% to 94.4%. Choosing the right project type — or framing your application correctly — can dramatically affect outcomes.
2
Visibility drives scrutiny. Project types that change the external appearance — dormers, loft conversions, hip-to-gable — face more resistance than those that don't. The more visible your proposal, the more carefully it needs designing.
3
These are council-wide averages. Your ward, your street and your immediate neighbours all shift the odds. The comparable decisions near your property are the best indicator of outcome.

Before you spend £5,000+ on architects and drawings

336 planning applications in Harborough have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.

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More Harborough planning data

Methodology: Classifies 3,899 decisions in Harborough into residential project types using keyword matching against proposal descriptions (matching generate_site_data.py subtype rules). A single application may appear in multiple categories. Data from Harborough Council's public planning portal, January 2020 to August 2026. Full methodology →
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