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Loft Conversion Approval Rates in Adur & Worthing

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 Adur & Worthing.

899 real decisions·January 2020 to present·Updated March 2026
92.4%
Approval Rate
899
Decisions
831
Approved
68
Refused
92.4% approved. But 68 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 Adur & Worthing.

TypeDecisionsRate
Conservatory762
96.9%
Wraparound Extension187
96.8%
Rear Extension2,856
96.6%
Hip-to-Gable Conversion650
95.2%
Side Extension1,264
95.0%
Loft Conversion899
92.4%
Extension (General)1,210
92.3%
Dormer1,736
92.2%
Outbuilding440
90.2%
Front Extension274
90.1%
Garage / Parking1,885
88.4%
Annex188
87.8%
Change of Use (Residential)646
85.9%
HMO99
85.9%
Basement90
84.4%
Flat Conversion62
79.0%
New Build162
72.8%
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What the data tells us

1
92.4% of loft conversion applications in Adur & Worthing get approved. That means 68 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

68 loft conversion 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 loft conversion data

Methodology: Based on 899 planning decisions classified as loft conversions in Adur & Worthing, 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 Adur & Worthing Council's public planning portal. Full methodology →
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