Data-backed planning intelligence · 3,780,000+ decisions analysed across England

Most Common Planning Applications in Glasgow

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Glasgow is 32.5% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

39,889 real decisions·16 project types·Updated August 2026
94.6%
Safest: Loft Conversion
62.1%
Lowest: Front Extension
32.5%
Spread
16
Types ranked

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All 16 project types ranked

#TypeDecisionsApprovedRefusedRate
1Loft Conversion37352
94.6%
2Extension (General)5,8265,333493
91.5%
3Garage / Parking2,7682,456312
88.7%
4Conservatory42637848
88.7%
5Outbuilding57250567
88.3%
6Basement32228339
87.9%
7Rear Extension1,2841,125159
87.6%
8Flat Conversion27623541
85.1%
9Change of Use (Residential)20417232
84.3%
10Side Extension971814157
83.8%
11Wraparound Extension26622244
83.5%
12Annex41347
82.9%
13New Build2,2451,813432
80.8%
14Dormer994776218
78.1%
15HMO634518
71.4%
16Front Extension291811
62.1%
See how this applies to your postcode →

These are council averages. Your property is specific.

A loft conversion application has a 94.6% approval rate. Front Extension? Just 62.1%.
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: 62.1% to 94.6%. 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

4,737 planning applications in Glasgow 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 Glasgow planning data

Nearby councils project type rankings

Methodology: Classifies 39,889 decisions in Glasgow 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 Glasgow Council's public planning portal, January 2020 to August 2026. Full methodology →
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