Data-backed planning intelligence · 3,290,000+ decisions analysed across England

Most Common Planning Applications in Richmond

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Richmond is 15.5% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

32,944 real decisions·17 project types·Updated June 2026
92.6%
Safest: HMO
77.1%
Lowest: Front Extension
15.5%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1HMO17516213
92.6%
2Change of Use (Residential)1,3621,243119
91.3%
3Conservatory68361271
89.6%
4Flat Conversion32929138
88.4%
5Outbuilding1,8371,610227
87.6%
6Extension (General)1,4871,264223
85.0%
7Garage / Parking3,1482,634514
83.7%
8New Build777650127
83.7%
9Basement902754148
83.6%
10Rear Extension6,9855,7611,224
82.5%
11Hip-to-Gable Conversion1,190980210
82.4%
12Wraparound Extension589484105
82.2%
13Side Extension3,1562,590566
82.1%
14Dormer4,5053,673832
81.5%
15Loft Conversion3,7143,028686
81.5%
16Annex1088622
79.6%
17Front Extension31524372
77.1%
See how this applies to your postcode →

These are council averages. Your property is specific.

A hmo application has a 92.6% approval rate. Front Extension? Just 77.1%.
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What the data tells us

1
The range is massive: 77.1% to 92.6%. 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

4,103 planning applications in Richmond 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 Richmond planning data

Nearby councils project type rankings

Methodology: Classifies 32,944 decisions in Richmond 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 Richmond Council's public planning portal, January 2020 to present. Full methodology →
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