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Rear Extension Approval Rates in Blaby

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 709 real decisions tell us about rear extension outcomes in Blaby.

709 real decisions·January 2020 to present·Updated May 2026
97.9%
Approval Rate
709
Decisions
694
Approved
15
Refused
97.9% approved. But 15 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
1Glen Parva66
100.0%
2Braunstone Millfield55
100.0%
3Countesthorpe55
100.0%
4Enderby66
100.0%
5Narborough & Littlethorpe99
100.0%
6Glenfield Faire55
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 Blaby.

TypeDecisionsRate
Wraparound Extension143
100.0%
Front Extension203
98.5%
Side Extension516
98.4%
Rear Extension709
97.9%
Conservatory47
95.7%
Loft Conversion50
92.0%
Extension (General)98
91.8%
Dormer93
91.4%
Annex33
90.9%
Garage / Parking372
90.6%
Outbuilding120
89.2%
Change of Use (Residential)69
76.8%
New Build105
73.3%
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What the data tells us

1
97.9% of rear extension applications in Blaby get approved. That means 15 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

15 rear extension applications in Blaby 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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More Blaby planning data

Methodology: Based on 709 planning decisions classified as rear extensions in Blaby, 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 Blaby Council's public planning portal. Full methodology →
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