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Rear Extension Approval Rates in Gravesham

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 130 real decisions tell us about rear extension outcomes in Gravesham.

130 real decisions·January 2020 to present·Updated March 2026
72.3%
Approval Rate
130
Decisions
94
Approved
36
Refused
72.3% approved. But 36 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.

Ward gap in Gravesham: Riverview Park approves 100.0% of rear extension applications while Chalk sits at 40.0%. That 60.0% gap means your postcode is one of the strongest indicators of outcome.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1Riverview Park77
100.0%
2Meopham North98
88.9%
3Whitehill And Windmill Hill108
80.0%
4Woodlands97
77.8%
5Pelham75
71.4%
6Coldharbour And Perry Street107
70.0%
7Painters Ash96
66.7%
8Higham And Shorne149
64.3%
9Northfleet And Springhead84
50.0%
10Chalk52
40.0%
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These are council averages. Your property is specific.

A rear extension has a 100.0% approval rate in Riverview Park but just 40.0% in Chalk.
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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 Gravesham.

TypeDecisionsRate
Dormer36
77.8%
Rear Extension130
72.3%
Garage / Parking47
68.1%
Side Extension38
65.8%
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What the data tells us

1
72.3% of rear extension applications in Gravesham get approved. That means 36 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
2
Your ward matters more than you think. The 60.0% gap between Riverview Park (100.0%) and Chalk (40.0%) means your postcode is one of the strongest indicators of outcome.
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

36 rear extension applications in Gravesham 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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More Gravesham planning data

Methodology: Based on 130 planning decisions classified as rear extensions in Gravesham, 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 Gravesham Council's public planning portal. Full methodology →
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