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Rear Extension Approval Rates in Rotherham

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 778 real decisions tell us about rear extension outcomes in Rotherham.

778 real decisions·January 2020 to present·Updated March 2026
92.7%
Approval Rate
778
Decisions
721
Approved
57
Refused
92.7% approved. But 57 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.

Ward gap in Rotherham: Wickersley North approves 100.0% of rear extension applications while Sitwell sits at 87.5%. That 12.5% gap means your postcode is one of the strongest indicators of outcome.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1Wickersley North55
100.0%
2Keppel66
100.0%
3Boston Castle98
88.9%
4Sitwell87
87.5%
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These are council averages. Your property is specific.

A rear extension has a 100.0% approval rate in Wickersley North but just 87.5% in Sitwell.
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 Rotherham.

TypeDecisionsRate
Wraparound Extension81
98.8%
Conservatory116
97.4%
Side Extension498
94.4%
Rear Extension778
92.7%
Extension (General)65
92.3%
Garage / Parking275
90.5%
Change of Use (Residential)95
90.5%
Front Extension182
90.1%
Outbuilding79
89.9%
Dormer91
89.0%
New Build148
86.5%
See how this applies to your postcode →

What the data tells us

1
92.7% of rear extension applications in Rotherham get approved. That means 57 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
2
Your ward matters more than you think. The 12.5% gap between Wickersley North (100.0%) and Sitwell (87.5%) means your postcode is one of the strongest indicators of outcome.
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

57 rear extension applications in Rotherham 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 Rotherham planning data

Methodology: Based on 778 planning decisions classified as rear extensions in Rotherham, 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 Rotherham Council's public planning portal. Full methodology →
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