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Most Common Planning Applications in Torfaen

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Torfaen is 17.2% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

4,592 real decisions·13 project types·Updated March 2026
98.0%
Safest: Conservatory
80.8%
Lowest: New Build
17.2%
Spread
13
Types ranked

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All 13 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory2482435
98.0%
2Rear Extension53851226
95.2%
3Side Extension27926316
94.3%
4Front Extension77725
93.5%
5Dormer13312310
92.5%
6Outbuilding15614313
91.7%
7Garage / Parking72065664
91.1%
8Extension (General)77169873
90.5%
9Loft Conversion80728
90.0%
10Wraparound Extension20182
90.0%
11Change of Use (Residential)16514817
89.7%
12Annex29254
86.2%
13New Build786315
80.8%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 98.0% approval rate. New Build? Just 80.8%.
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What the data tells us

1
The range is massive: 80.8% to 98.0%. 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

348 planning applications in Torfaen 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 Torfaen planning data

Nearby councils project type rankings

Methodology: Classifies 4,592 decisions in Torfaen 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 Torfaen Council's public planning portal, January 2020 to present. Full methodology →
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