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Rear Extension Approval Rates in North East Lincolnshire

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 387 real decisions tell us about rear extension outcomes in North East Lincolnshire.

387 real decisions·January 2020 to present·Updated June 2026
98.4%
Approval Rate
387
Decisions
381
Approved
6
Refused
98.4% approved. But 6 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 North East Lincolnshire.

TypeDecisionsRate
Annex30
100.0%
Rear Extension387
98.4%
Front Extension59
98.3%
Conservatory121
97.5%
Extension (General)311
97.4%
Loft Conversion32
96.9%
Side Extension234
96.6%
Wraparound Extension21
95.2%
Outbuilding215
93.5%
Dormer137
93.4%
Garage / Parking587
92.7%
Change of Use (Residential)290
89.3%
New Build114
86.8%
Flat Conversion34
85.3%
HMO30
76.7%
See how this applies to your postcode →

What the data tells us

1
98.4% of rear extension applications in North East Lincolnshire get approved. That means 6 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

6 rear extension applications in North East Lincolnshire 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 3,290,000+ real decisions

More North East Lincolnshire planning data

Nearby councils rear extension data

Methodology: Based on 387 planning decisions classified as rear extensions in North East Lincolnshire, January 2020 to present. 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 North East Lincolnshire Council's public planning portal. Full methodology →
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