Data-backed planning intelligence · 2,500,000+ decisions analysed across England

Most Common Planning Applications in Winchester

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Winchester is 18.5% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

6,515 real decisions·15 project types·Updated March 2026
100.0%
Safest: Hip-to-Gable Conversion
81.5%
Lowest: New Build
18.5%
Spread
15
Types ranked

Check Planning Approval Patterns in Winchester

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

Check My Postcode

All 15 project types ranked

#TypeDecisionsApprovedRefusedRate
1Hip-to-Gable Conversion27270
100.0%
2Conservatory2312274
98.3%
3Rear Extension89887820
97.8%
4Side Extension52551213
97.5%
5Front Extension1361324
97.1%
6Wraparound Extension84813
96.4%
7Dormer33632313
96.1%
8Loft Conversion2202119
95.9%
9Extension (General)47945722
95.4%
10Garage / Parking1,01496153
94.8%
11Basement41383
92.7%
12Annex96897
92.7%
13Outbuilding36633828
92.3%
14Change of Use (Residential)24121229
88.0%
15New Build15712829
81.5%
See how this applies to your postcode →

These are council averages. Your property is specific.

A hip-to-gable conversion application has a 100.0% approval rate. New Build? Just 81.5%.
Check your postcode to see what actually happens near your address.

Check My Postcode

What the data tells us

1
The range is massive: 81.5% 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

331 planning applications in Winchester 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.

Check My Postcode First
Free instant check · Pro Report £79 · Based on 2,500,000+ real decisions

More Winchester planning data

Nearby councils project type rankings

Methodology: Classifies 6,515 decisions in Winchester 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 Winchester Council's public planning portal, January 2020 to present. Full methodology →
Check planning approval patterns in Winchester — Free