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Rear Extension Approval Rates in Mansfield

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 634 real decisions tell us about rear extension outcomes in Mansfield.

634 real decisions·January 2020 to present·Updated March 2026
98.9%
Approval Rate
634
Decisions
627
Approved
7
Refused
98.9% approved. But 7 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.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1Berry Hill55
100.0%
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These are council averages. Your property is specific.

Two houses on the same street can get different outcomes.
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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 Mansfield.

TypeDecisionsRate
Front Extension102
100.0%
Wraparound Extension48
100.0%
Conservatory53
100.0%
HMO60
100.0%
Side Extension336
99.4%
Extension (General)160
99.4%
Outbuilding137
99.3%
Dormer101
99.0%
Rear Extension634
98.9%
Change of Use (Residential)318
98.7%
Garage / Parking495
98.4%
New Build111
98.2%
Loft Conversion54
98.1%
Annex24
95.8%
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What the data tells us

1
98.9% of rear extension applications in Mansfield get approved. That means 7 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

7 rear extension applications in Mansfield have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A £79 report shows you what gets approved — and what gets refused — near your property.

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More Mansfield planning data

Methodology: Based on 634 planning decisions classified as rear extensions in Mansfield, 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 Mansfield Council's public planning portal. Full methodology →
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