Data-backed planning intelligence · 3,290,000+ 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 12.0% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

4,579 real decisions·13 project types·Updated June 2026
100.0%
Safest: Conservatory
88.0%
Lowest: New Build
12.0%
Spread
13
Types ranked

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All 13 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory1241240
100.0%
2Loft Conversion73721
98.6%
3Front Extension1231212
98.4%
4Rear Extension65364211
98.3%
5Side Extension3743677
98.1%
6Wraparound Extension50491
98.0%
7Extension (General)50449212
97.6%
8Dormer1131103
97.3%
9Outbuilding35434311
96.9%
10Garage / Parking64361033
94.9%
11Annex1301228
93.8%
12Change of Use (Residential)22320419
91.5%
13New Build15013218
88.0%
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 88.0%.
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What the data tells us

1
The range is massive: 88.0% 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

183 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 4,579 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 present. Full methodology →
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