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Rear Extension Approval Rates in Broadland

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,129 real decisions tell us about rear extension outcomes in Broadland.

1,129 real decisions·January 2020 to September 2026·Updated September 2026
98.1%
Approval Rate
1,129
Decisions
1,107
Approved
22
Refused
98.1% approved. But 22 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 Broadland.

TypeDecisionsRate
Conservatory184
99.5%
Wraparound Extension108
99.1%
Rear Extension1,129
98.1%
Side Extension555
97.7%
Extension (General)553
97.6%
Loft Conversion190
97.4%
Front Extension218
97.2%
Dormer211
96.7%
Outbuilding446
94.8%
Annex169
94.7%
Garage / Parking1,057
91.2%
Change of Use (Residential)315
84.8%
New Build252
79.0%
See how this applies to your postcode →

What the data tells us

1
98.1% of rear extension applications in Broadland get approved. That means 22 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

22 rear extension applications in Broadland 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 3,840,000+ real decisions

More Broadland planning data

Methodology: Based on 1,129 planning decisions classified as rear extensions in Broadland, January 2020 to September 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 Broadland Council's public planning portal. Full methodology →
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