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Most Common Planning Applications in Luton

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Luton is 28.9% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

4,480 real decisions·15 project types·Updated August 2026
92.3%
Safest: Conservatory
63.4%
Lowest: HMO
28.9%
Spread
15
Types ranked

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All 15 project types ranked

#TypeDecisionsApprovedRefusedRate
1Conservatory52484
92.3%
2Garage / Parking70663769
90.2%
3Rear Extension2,2952,068227
90.1%
4Extension (General)998712
87.9%
5Front Extension19816731
84.3%
6Wraparound Extension13811325
81.9%
7Hip-to-Gable Conversion554510
81.8%
8New Build40833078
80.9%
9Loft Conversion18414737
79.9%
10Outbuilding14311429
79.7%
11Side Extension494392102
79.4%
12Dormer26921356
79.2%
13Annex362610
72.2%
14Change of Use (Residential)354246108
69.5%
15HMO714526
63.4%
See how this applies to your postcode →

These are council averages. Your property is specific.

A conservatory application has a 92.3% approval rate. HMO? Just 63.4%.
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What the data tells us

1
The range is massive: 63.4% to 92.3%. 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

568 planning applications in Luton 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 Luton planning data

Methodology: Classifies 4,480 decisions in Luton 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 Luton Council's public planning portal, January 2020 to August 2026. Full methodology →
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