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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 15.6% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

4,871 real decisions·13 project types·Updated June 2026
97.7%
Safest: Conservatory
82.1%
Lowest: New Build
15.6%
Spread
13
Types ranked

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All 13 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory2562506
97.7%
2Rear Extension57254428
95.1%
3Side Extension30128219
93.7%
4Dormer14513411
92.4%
5Wraparound Extension25232
92.0%
6Front Extension82757
91.5%
7Outbuilding16314914
91.4%
8Garage / Parking78871870
91.1%
9Extension (General)80272973
90.9%
10Loft Conversion87798
90.8%
11Change of Use (Residential)18116219
89.5%
12Annex33294
87.9%
13New Build846915
82.1%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 97.7% approval rate. New Build? Just 82.1%.
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What the data tells us

1
The range is massive: 82.1% to 97.7%. 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

363 planning applications in Torfaen 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 Torfaen planning data

Nearby councils project type rankings

Methodology: Classifies 4,871 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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