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Most Common Planning Applications in Lincoln

Not all planning applications are created equal. The gap between the highest and lowest approval project type in Lincoln is 16.6% — that's the difference between near-certainty and a coin flip. What you build matters as much as where you build it.

7,069 real decisions·16 project types·Updated August 2026
99.2%
Safest: Front Extension
82.6%
Lowest: Flat Conversion
16.6%
Spread
16
Types ranked

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All 16 project types ranked

#TypeDecisionsApprovedRefusedRate
1Front Extension1191181
99.2%
2Conservatory90891
98.9%
3Side Extension6086017
98.8%
4Wraparound Extension2652614
98.5%
5Rear Extension97495717
98.3%
6Basement32311
96.9%
7Annex42402
95.2%
8Extension (General)20619610
95.1%
9HMO86381548
94.4%
10Outbuilding16315310
93.9%
11Garage / Parking47144229
93.8%
12Loft Conversion30282
93.3%
13Change of Use (Residential)68763651
92.6%
14Dormer94868
91.5%
15New Build25522728
89.0%
16Flat Conversion46388
82.6%
See how this applies to your postcode →

These are council averages. Your property is specific.

A front extension application has a 99.2% approval rate. Flat Conversion? Just 82.6%.
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What the data tells us

1
The range is massive: 82.6% to 99.2%. 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

337 planning applications in Lincoln 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 Lincoln planning data

Nearby councils project type rankings

Methodology: Classifies 7,069 decisions in Lincoln 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 Lincoln Council's public planning portal, January 2020 to August 2026. Full methodology →
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