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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.

23,818 real decisions·17 project types·Updated September 2026
92.7%
Safest: HMO
77.5%
Lowest: Front Extension
15.2%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1HMO17816513
92.7%
2Change of Use (Residential)1,3701,248122
91.1%
3Conservatory69362271
89.8%
4Flat Conversion33029238
88.5%
5Outbuilding1,8871,660227
88.0%
6Extension (General)1,5151,291224
85.2%
7Garage / Parking3,1862,672514
83.9%
8Basement909761148
83.7%
9New Build782654128
83.6%
10Rear Extension7,1215,8971,224
82.8%
11Hip-to-Gable Conversion1,2101,000210
82.6%
12Wraparound Extension603498105
82.6%
13Side Extension3,1882,622566
82.2%
14Dormer4,5823,750832
81.8%
15Loft Conversion3,7743,088686
81.8%
16Annex1098722
79.8%
17Front Extension32024872
77.5%
See how this applies to your postcode →

These are council averages. Your property is specific.

A hmo application has a 92.7% approval rate. Front Extension? Just 77.5%.
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: 77.5% to 92.7%. 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

3,656 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 23,818 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 September 2026. Full methodology →
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