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Most Common Planning Applications in Sheffield

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Sheffield is 12.8% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

4,671 real decisions·16 project types·Updated October 2026
95.0%
Safest: Annex
82.2%
Lowest: Loft Conversion
12.8%
Spread
16
Types ranked

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All 16 project types ranked

#TypeDecisionsApprovedRefusedRate
1Annex40382
95.0%
2Wraparound Extension84795
94.0%
3Conservatory29527619
93.6%
4Extension (General)35232527
92.3%
5Rear Extension1,9191,761158
91.8%
6Basement14613412
91.8%
7Change of Use (Residential)19117516
91.6%
8Side Extension1,2901,173117
90.9%
9Front Extension29626828
90.5%
10Garage / Parking1,2011,073128
89.3%
11Outbuilding25522629
88.6%
12Hip-to-Gable Conversion13912118
87.1%
13HMO746311
85.1%
14Dormer56147685
84.8%
15New Build1,028860168
83.7%
16Loft Conversion45378
82.2%
See how this applies to your postcode →

These are council averages. Your property is specific.

A annex application has a 95.0% approval rate. Loft Conversion? Just 82.2%.
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: 82.2% to 95.0%. 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

517 planning applications in Sheffield 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 Sheffield planning data

Nearby councils project type rankings

Methodology: Classifies 4,671 decisions in Sheffield 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 Sheffield Council's public planning portal, January 2020 to October 2026. Full methodology →
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