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

Most Common Planning Applications in Dorset

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Dorset is 13.8% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

11,976 real decisions·16 project types·Updated September 2026
97.1%
Safest: Conservatory
83.3%
Lowest: New Build
13.8%
Spread
16
Types ranked

Check Planning Approval Patterns in Dorset

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

Check My Postcode

All 16 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory71569421
97.1%
2Front Extension29027812
95.9%
3Wraparound Extension1421366
95.8%
4Extension (General)1,9771,864113
94.3%
5Side Extension1,1311,06467
94.1%
6Loft Conversion30728918
94.1%
7Rear Extension2,0801,949131
93.7%
8Dormer85278666
92.3%
9Outbuilding1,2191,119100
91.8%
10Garage / Parking3,2832,996287
91.3%
11Hip-to-Gable Conversion23212
91.3%
12Flat Conversion33303
90.9%
13Annex44139150
88.7%
14Basement61547
88.5%
15Change of Use (Residential)1,143961182
84.1%
16New Build52143487
83.3%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 97.1% approval rate. New Build? Just 83.3%.
Check your postcode to see what actually happens near your address.

Check My Postcode

What the data tells us

1
The range is massive: 83.3% to 97.1%. 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

927 planning applications in Dorset 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 Dorset planning data

Methodology: Classifies 11,976 decisions in Dorset 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 Dorset Council's public planning portal, January 2020 to September 2026. Full methodology →
Check planning approval patterns in Dorset — Free