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Rear Extension Approval Rates in Lincoln

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 974 real decisions tell us about rear extension outcomes in Lincoln.

974 real decisions·January 2020 to August 2026·Updated August 2026
98.3%
Approval Rate
974
Decisions
957
Approved
17
Refused
98.3% approved. But 17 refused since 2020. Each refusal cost the homeowner time and money on drawings and application fees. Understanding your local data before you apply is the difference between confidence and a costly gamble.

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Why rear extension approval rates matter

Rear extensions sit in the middle of the pack nationally. They're common enough that councils have clear precedent — but that cuts both ways. If your neighbours have been refused, that precedent works against you too.

These are council averages. Your property is specific.

Two houses on the same street can get different outcomes.
Check your postcode to see what actually happens near your address.

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How rear extensions compare to other project types

Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Lincoln.

TypeDecisionsRate
Front Extension119
99.2%
Conservatory90
98.9%
Side Extension608
98.8%
Wraparound Extension265
98.5%
Rear Extension974
98.3%
Basement32
96.9%
Annex42
95.2%
Extension (General)206
95.1%
HMO863
94.4%
Outbuilding163
93.9%
Garage / Parking471
93.8%
Loft Conversion30
93.3%
Change of Use (Residential)687
92.6%
Dormer94
91.5%
New Build255
89.0%
Flat Conversion46
82.6%
See how this applies to your postcode →

What the data tells us

1
98.3% of rear extension applications in Lincoln get approved. That means 17 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
3
Council averages are starting points, not guarantees. The decisions that matter most are the comparable ones near your specific property — because planning officers look at precedent, character and the immediate context of your street.

Before you spend £5,000+ on architects and drawings

17 rear extension 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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Free · Property report emailed in minutes · Based on 3,780,000+ real decisions

More Lincoln planning data

Nearby councils rear extension data

Methodology: Based on 974 planning decisions classified as rear extensions in Lincoln, January 2020 to August 2026. Classification uses keyword matching against proposal descriptions (matching generate_site_data.py rules). A single application may appear in multiple categories. Approval rate = approved / (approved + refused). Pending, withdrawn and invalid applications excluded. Data from Lincoln Council's public planning portal. Full methodology →
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