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Most Common Planning Applications in Ceredigion

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Ceredigion is 18.0% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

37,412 real decisions·14 project types·Updated March 2026
97.5%
Safest: Conservatory
79.5%
Lowest: New Build
18.0%
Spread
14
Types ranked

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All 14 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory89587322
97.5%
2Side Extension93903
96.8%
3Loft Conversion85823
96.5%
4Extension (General)7,0906,801289
95.9%
5Dormer37334726
93.0%
6Rear Extension33731324
92.9%
7Annex40037030
92.5%
8Garage / Parking3,8223,477345
91.0%
9Basement73667
90.4%
10Change of Use (Residential)2,9492,604345
88.3%
11Flat Conversion27424034
87.6%
12Outbuilding2,6582,269389
85.4%
13HMO19015832
83.2%
14New Build4,7343,763971
79.5%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 97.5% approval rate. New Build? Just 79.5%.
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What the data tells us

1
The range is massive: 79.5% to 97.5%. 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

4,523 planning applications in Ceredigion 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.

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More Ceredigion planning data

Nearby councils project type rankings

Methodology: Classifies 37,412 decisions in Ceredigion 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 Ceredigion Council's public planning portal, January 2020 to present. Full methodology →
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