Data-backed planning intelligence · 3,290,000+ decisions analysed across England

Most Common Planning Applications in Cheltenham

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Cheltenham is 14.6% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

14,041 real decisions·17 project types·Updated June 2026
99.2%
Safest: Conservatory
84.6%
Lowest: HMO
14.6%
Spread
17
Types ranked

Check Planning Approval Patterns in Cheltenham

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

Check My Postcode

All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory4894854
99.2%
2Rear Extension2,4782,42850
98.0%
3Wraparound Extension2822757
97.5%
4Side Extension1,3501,30743
96.8%
5Basement34032911
96.8%
6Front Extension2292218
96.5%
7Extension (General)1,2511,20447
96.2%
8Dormer57355122
96.2%
9Outbuilding57054723
96.0%
10Hip-to-Gable Conversion100964
96.0%
11Garage / Parking1,8661,78977
95.9%
12Change of Use (Residential)49346627
94.5%
13Loft Conversion41238230
92.7%
14Annex13112011
91.6%
15Flat Conversion28253
89.3%
16New Build37232547
87.4%
17HMO26224
84.6%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 99.2% approval rate. HMO? Just 84.6%.
Check your postcode to see what actually happens near your address.

Check My Postcode

What the data tells us

1
The range is massive: 84.6% to 99.2%. 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

563 planning applications in Cheltenham 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 3,290,000+ real decisions

More Cheltenham planning data

Nearby councils project type rankings

Methodology: Classifies 14,041 decisions in Cheltenham 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 Cheltenham Council's public planning portal, January 2020 to present. Full methodology →
Check planning approval patterns in Cheltenham — Free