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Most Common Planning Applications in Lewes & Eastbourne

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Lewes & Eastbourne is 25.7% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

2,308 real decisions·14 project types·Updated August 2026
97.7%
Safest: Hip-to-Gable Conversion
72.0%
Lowest: Change of Use (Residential)
25.7%
Spread
14
Types ranked

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All 14 project types ranked

#TypeDecisionsApprovedRefusedRate
1Hip-to-Gable Conversion43421
97.7%
2Conservatory85832
97.6%
3Dormer1731667
96.0%
4Loft Conversion101974
96.0%
5Extension (General)91874
95.6%
6Rear Extension33131615
95.5%
7Side Extension20218814
93.1%
8Front Extension62575
91.9%
9Wraparound Extension22202
90.9%
10Garage / Parking38234141
89.3%
11Outbuilding12310617
86.2%
12Annex43358
81.4%
13New Build1048321
79.8%
14Change of Use (Residential)825923
72.0%
See how this applies to your postcode →

These are council averages. Your property is specific.

A hip-to-gable conversion application has a 97.7% approval rate. Change of Use (Residential)? Just 72.0%.
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What the data tells us

1
The range is massive: 72.0% to 97.7%. 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

199 planning applications in Lewes & Eastbourne 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 Lewes & Eastbourne planning data

Nearby councils project type rankings

Methodology: Classifies 2,308 decisions in Lewes & Eastbourne 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 Lewes & Eastbourne Council's public planning portal, January 2020 to August 2026. Full methodology →
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