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

Most Common Planning Applications in East Hertfordshire

Not all planning applications are created equal. The gap between the highest and lowest approval project type in East Hertfordshire is 20.4% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

16,563 real decisions·16 project types·Updated March 2026
82.4%
Safest: Conservatory
62.0%
Lowest: New Build
20.4%
Spread
16
Types ranked

Check Planning Approval Patterns in East Hertfordshire

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

Check My Postcode

All 16 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory1,020840180
82.4%
2Rear Extension5,1784,0631,115
78.5%
3Wraparound Extension506396110
78.3%
4Extension (General)675508167
75.3%
5Front Extension1,032771261
74.7%
6Loft Conversion919685234
74.5%
7Outbuilding1,3871,027360
74.0%
8Side Extension2,9252,159766
73.8%
9Dormer1,5901,165425
73.3%
10Basement22816464
71.9%
11Garage / Parking4,1472,9331,214
70.7%
12Hip-to-Gable Conversion20814464
69.2%
13Flat Conversion392514
64.1%
14Annex341215126
63.0%
15Change of Use (Residential)1,011631380
62.4%
16New Build1,254778476
62.0%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 82.4% approval rate. New Build? Just 62.0%.
Check your postcode to see what actually happens near your address.

Check My Postcode

What the data tells us

1
The range is massive: 62.0% to 82.4%. 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

4,442 planning applications in East Hertfordshire 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 East Hertfordshire planning data

Nearby councils project type rankings

Methodology: Classifies 16,563 decisions in East Hertfordshire 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 East Hertfordshire Council's public planning portal, January 2020 to present. Full methodology →
Check planning approval patterns in East Hertfordshire — Free