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

Rear Extension Approval Rates in Enfield

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 9,329 real decisions tell us about rear extension outcomes in Enfield.

9,329 real decisions·January 2020 to present·Updated March 2026
78.8%
Approval Rate
9,329
Decisions
7,347
Approved
1,982
Refused
78.8% approved. But 1,982 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
1Ponders End54
80.0%
2Whitewebbs54
80.0%
3Oakwood54
80.0%
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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 Enfield.

TypeDecisionsRate
Extension (General)1,778
83.0%
Conservatory253
82.2%
Garage / Parking5,528
79.7%
New Build1,432
79.7%
Dormer5,009
78.9%
Rear Extension9,329
78.8%
Outbuilding1,504
78.3%
Basement796
78.0%
Front Extension565
75.6%
Wraparound Extension700
75.0%
Side Extension3,022
74.6%
Flat Conversion3,278
73.8%
Change of Use (Residential)2,012
71.3%
Loft Conversion453
70.4%
Annex182
69.8%
Hip-to-Gable Conversion156
69.2%
HMO895
66.5%
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What the data tells us

1
78.8% of rear extension applications in Enfield get approved. That means 1,982 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

1,982 rear extension applications in Enfield 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 Enfield planning data

Nearby councils rear extension data

Methodology: Based on 9,329 planning decisions classified as rear extensions in Enfield, 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 Enfield Council's public planning portal. Full methodology →
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