Data-backed planning intelligence · 2,500,000+ decisions analysed across England

Most Common Planning Applications in Camden

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Camden is 21.8% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

19,373 real decisions·17 project types·Updated March 2026
100.0%
Safest: Hip-to-Gable Conversion
78.2%
Lowest: Front Extension
21.8%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Hip-to-Gable Conversion30300
100.0%
2Flat Conversion1,2161,16749
96.0%
3Change of Use (Residential)4,0943,918176
95.7%
4Basement3,6923,523169
95.4%
5Outbuilding69065634
95.1%
6Extension (General)1,4171,33978
94.5%
7Conservatory33031119
94.2%
8Garage / Parking1,2481,17177
93.8%
9Rear Extension3,2823,059223
93.2%
10Side Extension75369756
92.6%
11Annex54504
92.6%
12New Build97089278
92.0%
13HMO13912712
91.4%
14Wraparound Extension103949
91.3%
15Dormer1,2001,082118
90.2%
16Loft Conversion1,4151,214201
85.8%
17Front Extension876819
78.2%
See how this applies to your postcode →

These are council averages. Your property is specific.

A hip-to-gable conversion application has a 100.0% approval rate. Front Extension? Just 78.2%.
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What the data tells us

1
The range is massive: 78.2% 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

1,527 planning applications in Camden have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A £79 report shows you what gets approved — and what gets refused — near your property.

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More Camden planning data

Nearby councils project type rankings

Methodology: Classifies 19,373 decisions in Camden 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 Camden Council's public planning portal, January 2020 to present. Full methodology →
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