Data-backed planning intelligence · 2,500,000+ decisions analysed across England

Most Common Planning Applications in Trafford

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Trafford is 22.4% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

13,295 real decisions·17 project types·Updated March 2026
93.8%
Safest: Wraparound Extension
71.4%
Lowest: Flat Conversion
22.4%
Spread
17
Types ranked

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All 17 project types ranked

#TypeDecisionsApprovedRefusedRate
1Wraparound Extension1,4161,32888
93.8%
2Annex81765
93.8%
3Conservatory58153843
92.6%
4Side Extension4,1203,750370
91.0%
5Rear Extension5,9175,352565
90.5%
6Front Extension94785691
90.4%
7Outbuilding48343350
89.6%
8Loft Conversion47241656
88.1%
9Basement30626541
86.6%
10Garage / Parking2,2291,926303
86.4%
11Change of Use (Residential)53346073
86.3%
12HMO47407
85.1%
13Extension (General)44737869
84.6%
14New Build1,2701,066204
83.9%
15Dormer1,135931204
82.0%
16Hip-to-Gable Conversion23118942
81.8%
17Flat Conversion352510
71.4%
See how this applies to your postcode →

These are council averages. Your property is specific.

A wraparound extension application has a 93.8% approval rate. Flat Conversion? Just 71.4%.
Check your postcode to see what actually happens near your address.

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What the data tells us

1
The range is massive: 71.4% to 93.8%. 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

1,570 planning applications in Trafford 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 Trafford planning data

Nearby councils project type rankings

Methodology: Classifies 13,295 decisions in Trafford 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 Trafford Council's public planning portal, January 2020 to present. Full methodology →
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