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Most Common Planning Applications in Adur & Worthing

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Adur & Worthing is 24.1% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

13,786 real decisions·17 project types·Updated March 2026
96.9%
Safest: Conservatory
72.8%
Lowest: New Build
24.1%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory76273824
96.9%
2Wraparound Extension1871816
96.8%
3Rear Extension2,8562,75898
96.6%
4Hip-to-Gable Conversion65061931
95.2%
5Side Extension1,2641,20163
95.0%
6Loft Conversion89983168
92.4%
7Extension (General)1,2101,11793
92.3%
8Dormer1,7361,601135
92.2%
9Outbuilding44039743
90.2%
10Front Extension27424727
90.1%
11Garage / Parking1,8851,666219
88.4%
12Annex18816523
87.8%
13Change of Use (Residential)64655591
85.9%
14HMO998514
85.9%
15Basement907614
84.4%
16Flat Conversion624913
79.0%
17New Build16211844
72.8%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 96.9% approval rate. New Build? Just 72.8%.
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What the data tells us

1
The range is massive: 72.8% to 96.9%. 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

938 planning applications in Adur & Worthing 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 Adur & Worthing planning data

Nearby councils project type rankings

Methodology: Classifies 13,786 decisions in Adur & Worthing 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 Adur & Worthing Council's public planning portal, January 2020 to present. Full methodology →
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