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Most Common Planning Applications in Arun

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

1,419 real decisions·14 project types·Updated July 2026
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Safest: Extension (General)
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Lowest: Change of Use (Residential)
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Spread
14
Types ranked

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All 14 project types ranked

#TypeDecisionsApprovedRefusedRate
1Extension (General)119––
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2Garage / Parking309––
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3Conservatory116––
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4Side Extension171––
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5Outbuilding95––
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6Rear Extension366––
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7Front Extension73––
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8Dormer162––
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9Loft Conversion80––
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10New Build41––
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11Annex24––
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12Wraparound Extension22––
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13Hip-to-Gable Conversion28––
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14Change of Use (Residential)31––
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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. Change of Use (Residential)? 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 Arun 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 Arun planning data

Methodology: Classifies 1,419 decisions in Arun 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 Arun Council's public planning portal, January 2020 to July 2026. Full methodology →
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