Data-backed planning intelligence · 2,500,000+ decisions analysed across England

Rear Extension Approval Rates in Kingston upon Hull

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,091 real decisions tell us about rear extension outcomes in Kingston upon Hull.

1,091 real decisions·January 2020 to present·Updated March 2026
90.4%
Approval Rate
1,091
Decisions
986
Approved
105
Refused
90.4% approved. But 105 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
1Boothferry55
100.0%
2Holderness55
100.0%
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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 Kingston upon Hull.

TypeDecisionsRate
Conservatory140
93.6%
Rear Extension1,091
90.4%
Extension (General)472
88.8%
Wraparound Extension69
88.4%
Side Extension381
87.9%
Hip-to-Gable Conversion39
87.2%
HMO353
87.0%
Change of Use (Residential)658
85.3%
Dormer185
84.9%
Front Extension46
84.8%
New Build358
83.2%
Garage / Parking589
83.0%
Outbuilding165
82.4%
Loft Conversion84
82.1%
Flat Conversion79
81.0%
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What the data tells us

1
90.4% of rear extension applications in Kingston upon Hull get approved. That means 105 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

105 rear extension applications in Kingston upon Hull 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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Free instant check · Pro Report £79 · Based on 2,500,000+ real decisions

More Kingston upon Hull planning data

Nearby councils rear extension data

Methodology: Based on 1,091 planning decisions classified as rear extensions in Kingston upon Hull, 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 Kingston upon Hull Council's public planning portal. Full methodology →
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