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Loft Conversion Approval Rates in East Cambridgeshire

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 East Cambridgeshire.

207 real decisions·January 2020 to September 2026·Updated September 2026
87.9%
Approval Rate
207
Decisions
182
Approved
25
Refused
87.9% approved. But 25 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 East Cambridgeshire.

TypeDecisionsRate
Conservatory220
98.2%
Rear Extension1,339
94.3%
Front Extension218
92.2%
Side Extension653
92.2%
Wraparound Extension100
92.0%
Extension (General)895
90.8%
Dormer173
90.2%
Outbuilding720
89.2%
Loft Conversion207
87.9%
Garage / Parking2,073
87.2%
Annex191
85.3%
Change of Use (Residential)583
82.8%
New Build480
78.1%
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What the data tells us

1
87.9% of loft conversion applications in East Cambridgeshire get approved. That means 25 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

25 loft conversion applications in East Cambridgeshire 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 East Cambridgeshire planning data

Nearby councils loft conversion data

Methodology: Based on 207 planning decisions classified as loft conversions in East Cambridgeshire, January 2020 to September 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 East Cambridgeshire Council's public planning portal. Full methodology →
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