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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.

33,444 real decisions·16 project types·Updated June 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 Extension3,4313,075356
89.6%
4Front Extension989886103
89.6%
5Extension (General)2,7232,428295
89.2%
6Rear Extension5,8305,196634
89.1%
7Loft Conversion25823028
89.1%
8Wraparound Extension58951970
88.1%
9Outbuilding67958693
86.3%
10Dormer45038862
86.2%
11Garage / Parking3,2052,673532
83.4%
12Flat Conversion645311
82.8%
13Change of Use (Residential)2,1561,649507
76.5%
14New Build1,3971,021376
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

4,135 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 33,444 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 present. Full methodology →
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