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Most Common Planning Applications in North Ayrshire

Not all planning applications are created equal. The gap between the highest and lowest approval project type in North Ayrshire is 5.3% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

1,312 real decisions·7 project types·Updated June 2026
100.0%
Safest: Extension (General)
94.7%
Lowest: Garage / Parking
5.3%
Spread
7
Types ranked

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All 7 project types ranked

#TypeDecisionsApprovedRefusedRate
1Extension (General)3433430
100.0%
2Dormer78780
100.0%
3Rear Extension20200
100.0%
4Change of Use (Residential)94931
98.9%
5Outbuilding76751
98.7%
6New Build1961879
95.4%
7Garage / Parking1321257
94.7%
See how this applies to your postcode →

These are council averages. Your property is specific.

A extension (general) application has a 100.0% approval rate. Garage / Parking? Just 94.7%.
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What the data tells us

1
The range is massive: 94.7% to 100.0%. Choosing the right project type — or framing your application correctly — can dramatically affect outcomes.
2
Visibility drives scrutiny. Project types that change the external appearance — dormers, loft conversions, hip-to-gable — face more resistance than those that don't. The more visible your proposal, the more carefully it needs designing.
3
These are council-wide averages. Your ward, your street and your immediate neighbours all shift the odds. The comparable decisions near your property are the best indicator of outcome.

Before you spend £5,000+ on architects and drawings

25 planning applications in North Ayrshire 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 North Ayrshire planning data

Methodology: Classifies 1,312 decisions in North Ayrshire into residential project types using keyword matching against proposal descriptions (matching generate_site_data.py subtype rules). A single application may appear in multiple categories. Data from North Ayrshire Council's public planning portal, January 2020 to present. Full methodology →
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