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Loft Conversion Approval Rates in Lewes & Eastbourne

Loft conversions change your roofline — and that makes them one of the more closely scrutinised application types. Councils scrutinise visibility, overlooking and street character more closely than for ground-level work. Here's what the data shows in Lewes & Eastbourne.

101 real decisions·January 2020 to August 2026·Updated August 2026
96.0%
Approval Rate
101
Decisions
97
Approved
4
Refused
96.0% approved. But 4 refused since 2020. Each refusal cost the homeowner time and money on drawings and application fees. Understanding your local data before you apply is the difference between confidence and a costly gamble.

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Why loft conversion approval rates matter

Loft conversions face more scrutiny than rear or side extensions because they change the property's profile from the street. Dormers, mansards and hip-to-gable alterations are particularly sensitive.

These are council averages. Your property is specific.

Two houses on the same street can get different outcomes.
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How loft conversions compare to other project types

Not all applications are treated equally. Here's how loft conversions stack up against other common projects in Lewes & Eastbourne.

TypeDecisionsRate
Hip-to-Gable Conversion43
97.7%
Conservatory85
97.6%
Dormer173
96.0%
Loft Conversion101
96.0%
Extension (General)91
95.6%
Rear Extension331
95.5%
Side Extension202
93.1%
Front Extension62
91.9%
Wraparound Extension22
90.9%
Garage / Parking382
89.3%
Outbuilding123
86.2%
Annex43
81.4%
New Build104
79.8%
Change of Use (Residential)82
72.0%
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What the data tells us

1
96.0% of loft conversion applications in Lewes & Eastbourne get approved. That means 4 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
3
Council averages are starting points, not guarantees. The decisions that matter most are the comparable ones near your specific property — because planning officers look at precedent, character and the immediate context of your street.

Before you spend £5,000+ on architects and drawings

4 loft conversion 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 loft conversion data

Methodology: Based on 101 planning decisions classified as loft conversions in Lewes & Eastbourne, January 2020 to August 2026. Classification uses keyword matching against proposal descriptions (matching generate_site_data.py rules). A single application may appear in multiple categories. Approval rate = approved / (approved + refused). Pending, withdrawn and invalid applications excluded. Data from Lewes & Eastbourne Council's public planning portal. Full methodology →
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