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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.

225 real decisions·January 2020 to present·Updated March 2026
89.8%
Approval Rate
225
Decisions
202
Approved
23
Refused
89.8% 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
Conservatory315
96.2%
Wraparound Extension521
95.2%
Rear Extension2,435
94.1%
Side Extension1,600
93.8%
Hip-to-Gable Conversion159
93.1%
Front Extension351
92.3%
Garage / Parking1,205
90.7%
Loft Conversion225
89.8%
Dormer806
89.1%
Extension (General)616
88.6%
Outbuilding355
87.6%
Annex103
87.4%
Basement84
86.9%
HMO296
82.1%
Change of Use (Residential)514
77.8%
New Build433
76.0%
Flat Conversion21
57.1%
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What the data tells us

1
89.8% 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 £79 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 225 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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