Data-backed planning intelligence · 3,780,000+ decisions analysed across England

Most Common Planning Applications in South Norfolk

Not all planning applications are created equal. The gap between the highest and lowest approval project type in South Norfolk is 16.0% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

7,256 real decisions·13 project types·Updated August 2026
100.0%
Safest: Conservatory
84.0%
Lowest: New Build
16.0%
Spread
13
Types ranked

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All 13 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory1751750
100.0%
2Side Extension5305219
98.3%
3Rear Extension95493519
98.0%
4Extension (General)67866414
97.9%
5Dormer1641604
97.6%
6Wraparound Extension79772
97.5%
7Front Extension1761715
97.2%
8Outbuilding51549520
96.1%
9Loft Conversion1181135
95.8%
10Annex19018010
94.7%
11Garage / Parking1,01094466
93.5%
12Change of Use (Residential)35931742
88.3%
13New Build23719938
84.0%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 100.0% approval rate. New Build? Just 84.0%.
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What the data tells us

1
The range is massive: 84.0% 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

357 planning applications in South Norfolk 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 South Norfolk planning data

Methodology: Classifies 7,256 decisions in South Norfolk 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 South Norfolk Council's public planning portal, January 2020 to August 2026. Full methodology →
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