What type of planning application is most likely to be approved in Epsom & Ewell?

Conservatory at 90.2% based on 346 decisions.

What is hardest to get planning permission for in Epsom & Ewell?

Flat Conversion at 69.2% based on 39 decisions.

How do approval rates vary by project type in Epsom & Ewell?

From 90.2% (Conservatory) to 69.2% (Flat Conversion). What you build matters as much as where you build it.

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 21.0% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

4,661 real decisions·17 project types·Updated September 2026

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All 17 project types ranked

#	Type	Decisions	Approved	Refused	Rate
1	Conservatory	346	312	34	90.2%
2	Wraparound Extension	291	260	31	89.3%
3	Outbuilding	381	339	42	89.0%
4	Hip-to-Gable Conversion	401	354	47	88.3%
5	Rear Extension	2,439	2,134	305	87.5%
6	Side Extension	1,207	1,052	155	87.2%
7	Front Extension	356	309	47	86.8%
8	Garage / Parking	1,578	1,361	217	86.2%
9	Annex	51	43	8	84.3%
10	Extension (General)	322	271	51	84.2%
11	Loft Conversion	863	726	137	84.1%
12	Dormer	879	735	144	83.6%
13	New Build	208	163	45	78.4%
14	Basement	36	28	8	77.8%
15	HMO	21	16	5	76.2%
16	Change of Use (Residential)	217	162	55	74.7%
17	Flat Conversion	39	27	12	69.2%

See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 90.2% approval rate. Flat Conversion? Just 69.2%.
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What the data tells us

The range is massive: 69.2% to 90.2%. Choosing the right project type — or framing your application correctly — can dramatically affect outcomes.

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.

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

681 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 4,661 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 September 2026. Full methodology →