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Most Common Planning Applications in Pembrokeshire

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Pembrokeshire is 19.8% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

29,349 real decisions·13 project types·Updated June 2026
95.9%
Safest: Side Extension
76.1%
Lowest: New Build
19.8%
Spread
13
Types ranked

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All 13 project types ranked

#TypeDecisionsApprovedRefusedRate
1Side Extension1711647
95.9%
2Conservatory71367241
94.2%
3Rear Extension40037129
92.8%
4Extension (General)5,8655,399466
92.1%
5Loft Conversion13011614
89.2%
6Flat Conversion74659
87.8%
7Garage / Parking3,0722,688384
87.5%
8Dormer31427341
86.9%
9Change of Use (Residential)2,0641,792272
86.8%
10Outbuilding1,4421,252190
86.8%
11Annex30225646
84.8%
12Basement39327
82.1%
13New Build2,8082,136672
76.1%
See how this applies to your postcode →

These are council averages. Your property is specific.

A side extension application has a 95.9% approval rate. New Build? Just 76.1%.
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What the data tells us

1
The range is massive: 76.1% to 95.9%. 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

4,350 planning applications in Pembrokeshire 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.

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More Pembrokeshire planning data

Nearby councils project type rankings

Methodology: Classifies 29,349 decisions in Pembrokeshire 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 Pembrokeshire Council's public planning portal, January 2020 to present. Full methodology →
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