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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 742 real decisions tell us about rear extension outcomes in Bassetlaw.

742 real decisions·January 2020 to August 2026·Updated August 2026
91.0%
Approval Rate
742
Decisions
675
Approved
67
Refused
91.0% approved. But 67 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
Rear Extension742
91.0%
Conservatory120
90.8%
Extension (General)285
90.2%
Side Extension493
90.1%
Wraparound Extension69
87.0%
Outbuilding269
85.9%
Front Extension165
85.5%
Garage / Parking801
83.3%
Annex84
83.3%
Loft Conversion41
80.5%
Change of Use (Residential)438
80.1%
New Build164
67.7%
Dormer76
65.8%
See how this applies to your postcode →

What the data tells us

1
91.0% of rear extension applications in Bassetlaw get approved. That means 67 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

67 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 3,780,000+ real decisions

More Bassetlaw planning data

Methodology: Based on 742 planning decisions classified as rear extensions in Bassetlaw, 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 Bassetlaw Council's public planning portal. Full methodology →
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