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Loft Conversion Approval Rates in Eastleigh

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 Eastleigh.

447 real decisions·January 2020 to June 2026·Updated June 2026
83.9%
Approval Rate
447
Decisions
375
Approved
72
Refused
83.9% approved. But 72 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 Eastleigh.

TypeDecisionsRate
Conservatory1,689
92.8%
Rear Extension5,814
88.1%
Outbuilding787
86.3%
Extension (General)860
86.3%
Side Extension3,846
85.8%
Wraparound Extension543
85.6%
Basement50
84.0%
Loft Conversion447
83.9%
HMO66
83.3%
Front Extension1,131
81.4%
Change of Use (Residential)869
80.7%
Hip-to-Gable Conversion113
80.5%
Garage / Parking4,548
80.4%
Dormer1,563
78.8%
Flat Conversion27
77.8%
Annex237
75.9%
New Build1,043
73.9%
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What the data tells us

1
83.9% of loft conversion applications in Eastleigh get approved. That means 72 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

72 loft conversion applications in Eastleigh 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 Eastleigh planning data

Methodology: Based on 447 planning decisions classified as loft conversions in Eastleigh, January 2020 to June 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 Eastleigh Council's public planning portal. Full methodology →
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