Data-backed planning intelligence · 3,780,000+ decisions analysed across England

Most Common Planning Applications in Epsom & Ewell

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Epsom & Ewell is 20.9% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

8,700 real decisions·16 project types·Updated August 2026
90.1%
Safest: Conservatory
69.2%
Lowest: Flat Conversion
20.9%
Spread
16
Types ranked

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All 16 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory33530233
90.1%
2Wraparound Extension28325231
89.0%
3Outbuilding37132942
88.7%
4Hip-to-Gable Conversion39534946
88.4%
5Rear Extension2,3952,094301
87.4%
6Side Extension1,1871,036151
87.3%
7Front Extension34830246
86.8%
8Garage / Parking1,5441,333211
86.3%
9Extension (General)31826949
84.6%
10Loft Conversion841708133
84.2%
11Annex50428
84.0%
12Dormer856717139
83.8%
13New Build20816345
78.4%
14Basement36288
77.8%
15Change of Use (Residential)21115655
73.9%
16Flat Conversion392712
69.2%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 90.1% approval rate. Flat Conversion? Just 69.2%.
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What the data tells us

1
The range is massive: 69.2% to 90.1%. 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

1,057 planning applications in Epsom & Ewell 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 Epsom & Ewell planning data

Nearby councils project type rankings

Methodology: Classifies 8,700 decisions in Epsom & Ewell 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 Epsom & Ewell Council's public planning portal, January 2020 to August 2026. Full methodology →
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