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Most Common Planning Applications in Canterbury

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Canterbury is 17.4% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

7,140 real decisions·17 project types·Updated September 2026
98.5%
Safest: Conservatory
81.1%
Lowest: Change of Use (Residential)
17.4%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory4584517
98.5%
2Wraparound Extension2542504
98.4%
3Side Extension1,2391,20633
97.3%
4Rear Extension2,0902,01476
96.4%
5Annex103994
96.1%
6Front Extension2152069
95.8%
7Outbuilding62259032
94.9%
8Hip-to-Gable Conversion56533
94.6%
9Garage / Parking1,5431,45786
94.4%
10Extension (General)37835721
94.4%
11Dormer68163942
93.8%
12Loft Conversion23821820
91.6%
13Basement32293
90.6%
14New Build13211517
87.1%
15HMO27234
85.2%
16Flat Conversion38326
84.2%
17Change of Use (Residential)38030872
81.1%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 98.5% approval rate. Change of Use (Residential)? Just 81.1%.
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: 81.1% to 98.5%. 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

459 planning applications in Canterbury 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 Canterbury planning data

Methodology: Classifies 7,140 decisions in Canterbury 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 Canterbury Council's public planning portal, January 2020 to September 2026. Full methodology →
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