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Loft Conversion Approval Rates in Brecon Beacons National Park

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 Brecon Beacons National Park.

80 real decisions·January 2020 to present·Updated June 2026
88.8%
Approval Rate
80
Decisions
71
Approved
9
Refused
88.8% approved. But 9 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 Brecon Beacons National Park.

TypeDecisionsRate
Conservatory514
94.4%
Basement58
93.1%
Extension (General)2,290
92.2%
Front Extension25
92.0%
Side Extension277
91.3%
Rear Extension403
90.6%
Outbuilding1,082
90.2%
Loft Conversion80
88.8%
Dormer237
88.6%
Garage / Parking1,512
88.0%
Change of Use (Residential)903
87.5%
Annex204
84.8%
Flat Conversion25
84.0%
New Build530
80.9%
Wraparound Extension24
75.0%
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What the data tells us

1
88.8% of loft conversion applications in Brecon Beacons National Park get approved. That means 9 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

9 loft conversion applications in Brecon Beacons National Park 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 Brecon Beacons National Park planning data

Methodology: Based on 80 planning decisions classified as loft conversions in Brecon Beacons National Park, 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 Brecon Beacons National Park Council's public planning portal. Full methodology →
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