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Rear Extension Approval Rates in Cannock Chase

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,017 real decisions tell us about rear extension outcomes in Cannock Chase.

1,017 real decisions·January 2020 to August 2026·Updated August 2026
96.3%
Approval Rate
1,017
Decisions
979
Approved
38
Refused
96.3% approved. But 38 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 Cannock Chase.

TypeDecisionsRate
Conservatory128
98.4%
Extension (General)366
96.7%
Rear Extension1,017
96.3%
Side Extension720
95.3%
Wraparound Extension105
95.2%
Outbuilding141
95.0%
Garage / Parking592
89.7%
Front Extension123
88.6%
Annex57
87.7%
Dormer105
87.6%
Change of Use (Residential)400
86.8%
New Build312
84.9%
Loft Conversion72
83.3%
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What the data tells us

1
96.3% of rear extension applications in Cannock Chase get approved. That means 38 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

38 rear extension applications in Cannock Chase 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 3,780,000+ real decisions

More Cannock Chase planning data

Nearby councils rear extension data

Methodology: Based on 1,017 planning decisions classified as rear extensions in Cannock Chase, January 2020 to August 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 Cannock Chase Council's public planning portal. Full methodology →
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