Data-backed planning intelligence · 3,780,000+ 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 15.2% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

33,219 real decisions·17 project types·Updated August 2026
92.6%
Safest: HMO
77.4%
Lowest: Front Extension
15.2%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1HMO17616313
92.6%
2Change of Use (Residential)1,3651,243122
91.1%
3Conservatory68861771
89.7%
4Flat Conversion33029238
88.5%
5Outbuilding1,8601,633227
87.8%
6Extension (General)1,4971,274223
85.1%
7Garage / Parking3,1622,648514
83.7%
8Basement907759148
83.7%
9New Build779651128
83.6%
10Rear Extension7,0525,8281,224
82.6%
11Hip-to-Gable Conversion1,198988210
82.5%
12Wraparound Extension593488105
82.3%
13Side Extension3,1662,600566
82.1%
14Dormer4,5393,707832
81.7%
15Loft Conversion3,7403,054686
81.7%
16Annex1088622
79.6%
17Front Extension31824672
77.4%
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 77.4%.
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: 77.4% 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

4,113 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 33,219 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 August 2026. Full methodology →
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