Data-backed planning intelligence · 3,780,000+ decisions analysed across England

Most Common Planning Applications in Peterborough

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Peterborough is 40.0% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

33,566 real decisions·16 project types·Updated August 2026
100.0%
Safest: Basement
60.0%
Lowest: HMO
40.0%
Spread
16
Types ranked

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All 16 project types ranked

#TypeDecisionsApprovedRefusedRate
1Basement21210
100.0%
2Conservatory1,4601,39169
95.3%
3Side Extension3,4423,085357
89.6%
4Front Extension990887103
89.6%
5Extension (General)2,7322,436296
89.2%
6Rear Extension5,8485,212636
89.1%
7Loft Conversion25823028
89.1%
8Wraparound Extension59352271
88.0%
9Outbuilding68559194
86.3%
10Dormer45038862
86.2%
11Garage / Parking3,2162,684532
83.5%
12Flat Conversion645311
82.8%
13Change of Use (Residential)2,1731,663510
76.5%
14New Build1,3981,022376
73.1%
15Annex32222498
69.6%
16HMO855134
60.0%
See how this applies to your postcode →

These are council averages. Your property is specific.

A basement application has a 100.0% approval rate. HMO? Just 60.0%.
Check your postcode to see what actually happens near your address.

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What the data tells us

1
The range is massive: 60.0% to 100.0%. 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

4,151 planning applications in Peterborough 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 Peterborough planning data

Methodology: Classifies 33,566 decisions in Peterborough 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 Peterborough Council's public planning portal, January 2020 to August 2026. Full methodology →
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