Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland
PlanningLens

Most Common Planning Applications in South Downs

Not all planning applications are created equal. The gap between the highest and lowest approval project type in South Downs is 20.6% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

5,730 real decisions·15 project types·Updated September 2026
94.9%
Safest: Outbuilding
74.3%
Lowest: Hip-to-Gable Conversion
20.6%
Spread
15
Types ranked

Check Planning Approval Patterns in South Downs

See your ward's approval rate and nearby planning decisions — free and instant.

Check My Postcode

All 15 project types ranked

#TypeDecisionsApprovedRefusedRate
1Outbuilding98193150
94.9%
2Conservatory38736720
94.8%
3Basement68644
94.1%
4Extension (General)84279052
93.8%
5Rear Extension1,02795572
93.0%
6Front Extension1151078
93.0%
7Side Extension57652650
91.3%
8Garage / Parking1,5641,418146
90.7%
9Annex21018822
89.5%
10Dormer43938752
88.2%
11Wraparound Extension766610
86.8%
12New Build25922039
84.9%
13Loft Conversion17014228
83.5%
14Change of Use (Residential)41934475
82.1%
15Hip-to-Gable Conversion35269
74.3%
See how this applies to your postcode →

These are council averages. Your property is specific.

A outbuilding application has a 94.9% approval rate. Hip-to-Gable Conversion? Just 74.3%.
Check your postcode to see what actually happens near your address.

Check My Postcode

What the data tells us

1
The range is massive: 74.3% to 94.9%. 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

502 planning applications in South Downs 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.

Check my postcode
Free · Property report emailed in minutes · Based on 3,840,000+ real decisions

More South Downs planning data

Nearby councils project type rankings

Methodology: Classifies 5,730 decisions in South Downs 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 Downs Council's public planning portal, January 2020 to September 2026. Full methodology →
Check planning approval patterns in South Downs — Free