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Most Common Planning Applications in Highland

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

2,639 real decisions·8 project types·Updated September 2026
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Safest: Extension (General)
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Lowest: Conservatory
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Spread
8
Types ranked

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All 8 project types ranked

#TypeDecisionsApprovedRefusedRate
1Extension (General)447––
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2Change of Use (Residential)167––
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3Garage / Parking366––
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4Outbuilding180––
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5Dormer32––
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6New Build215––
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7Annex38––
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8Conservatory34––
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See how this applies to your postcode →

These are council averages. Your property is specific.

A extension (general) application has a – approval rate. Conservatory? Just –.
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What the data tells us

1
The range is massive: – to –. 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

– planning applications in Highland 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 Highland planning data

Methodology: Classifies 2,639 decisions in Highland 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 Highland Council's public planning portal, January 2020 to September 2026. Full methodology →
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