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Rear Extension Approval Rates in Bassetlaw

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 729 real decisions tell us about rear extension outcomes in Bassetlaw.

729 real decisions·January 2020 to present·Updated June 2026
91.1%
Approval Rate
729
Decisions
664
Approved
65
Refused
91.1% approved. But 65 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 Bassetlaw.

TypeDecisionsRate
Conservatory118
92.4%
Rear Extension729
91.1%
Extension (General)281
90.4%
Side Extension486
90.1%
Outbuilding263
86.7%
Wraparound Extension67
86.6%
Front Extension164
85.4%
Annex82
84.1%
Garage / Parking785
83.4%
Change of Use (Residential)429
80.2%
Loft Conversion39
79.5%
New Build158
69.0%
Dormer74
66.2%
See how this applies to your postcode →

What the data tells us

1
91.1% of rear extension applications in Bassetlaw get approved. That means 65 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

65 rear extension applications in Bassetlaw 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 Bassetlaw planning data

Methodology: Based on 729 planning decisions classified as rear extensions in Bassetlaw, 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 Bassetlaw Council's public planning portal. Full methodology →
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