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Loft Conversion Approval Rates in York

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 York.

234 real decisions·January 2020 to present·Updated June 2026
90.2%
Approval Rate
234
Decisions
211
Approved
23
Refused
90.2% approved. But 23 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 York.

TypeDecisionsRate
Conservatory320
95.9%
Wraparound Extension536
95.0%
Rear Extension2,520
94.0%
Side Extension1,662
93.3%
Hip-to-Gable Conversion165
92.7%
Front Extension364
92.3%
Garage / Parking1,251
90.6%
Loft Conversion234
90.2%
Dormer837
88.6%
Extension (General)628
88.5%
Outbuilding365
87.7%
Basement85
87.1%
Annex107
86.9%
HMO337
82.8%
Change of Use (Residential)546
77.7%
New Build450
75.6%
Flat Conversion23
60.9%
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What the data tells us

1
90.2% of loft conversion applications in York get approved. That means 23 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

23 loft conversion applications in York 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 York planning data

Nearby councils loft conversion data

Methodology: Based on 234 planning decisions classified as loft conversions in York, January 2020 to present. 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 York Council's public planning portal. Full methodology →
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