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Rear Extension Approval Rates in Great Yarmouth

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 404 real decisions tell us about rear extension outcomes in Great Yarmouth.

404 real decisions·January 2020 to present·Updated June 2026
93.6%
Approval Rate
404
Decisions
378
Approved
26
Refused
93.6% approved. But 26 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
1Unknown5855
94.8%
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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 Great Yarmouth.

TypeDecisionsRate
Dormer48
93.8%
Rear Extension404
93.6%
Conservatory102
93.1%
Side Extension228
92.5%
Extension (General)165
91.5%
Front Extension93
91.4%
Wraparound Extension43
90.7%
Outbuilding124
89.5%
Loft Conversion42
88.1%
Garage / Parking386
87.3%
Change of Use (Residential)158
77.8%
New Build94
74.5%
Annex31
64.5%
Flat Conversion30
40.0%
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What the data tells us

1
93.6% of rear extension applications in Great Yarmouth get approved. That means 26 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

26 rear extension applications in Great Yarmouth 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 Great Yarmouth planning data

Methodology: Based on 404 planning decisions classified as rear extensions in Great Yarmouth, 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 Great Yarmouth Council's public planning portal. Full methodology →
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