Data-backed planning intelligence · 3,780,000+ 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 13.8% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

25,921 real decisions·17 project types·Updated August 2026
97.3%
Safest: Hip-to-Gable Conversion
83.5%
Lowest: Front Extension
13.8%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Hip-to-Gable Conversion37361
97.3%
2Flat Conversion1,2681,21850
96.1%
3Basement4,3164,132184
95.7%
4Change of Use (Residential)4,2764,088188
95.6%
5Outbuilding91687343
95.3%
6Garage / Parking1,6611,58081
95.1%
7Conservatory39637620
94.9%
8Extension (General)1,6541,56886
94.8%
9Rear Extension3,6853,448237
93.6%
10Wraparound Extension1251178
93.6%
11New Build1,1791,10079
93.3%
12Side Extension83678056
93.3%
13Annex60555
91.7%
14Dormer1,4001,269131
90.6%
15HMO16014416
90.0%
16Loft Conversion1,5801,366214
86.5%
17Front Extension1038617
83.5%
See how this applies to your postcode →

These are council averages. Your property is specific.

A hip-to-gable conversion application has a 97.3% approval rate. Front Extension? Just 83.5%.
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What the data tells us

1
The range is massive: 83.5% to 97.3%. 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

1,716 planning applications in Camden 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 Camden planning data

Nearby councils project type rankings

Methodology: Classifies 25,921 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 August 2026. Full methodology →
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