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

Rear Extension Approval Rates in Havering

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 8,298 real decisions tell us about rear extension outcomes in Havering.

8,298 real decisions·January 2020 to present·Updated March 2026
81.6%
Approval Rate
8,298
Decisions
6,773
Approved
1,525
Refused
81.6% approved. But 1,525 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 Havering: St Edwards approves 100.0% of rear extension applications while Havering-atte-Bower sits at 60.0%. That 40.0% gap means your postcode is one of the strongest indicators of outcome.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1St Edwards66
100.0%
2Squirrels Heath88
100.0%
3Emerson Park77
100.0%
4Hylands & Harrow Lg55
100.0%
5Cranham55
100.0%
6Marshalls & Rise Pk98
88.9%
7Upminster1513
86.7%
8Havering-atte-Bower53
60.0%
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These are council averages. Your property is specific.

A rear extension has a 100.0% approval rate in St Edwards but just 60.0% in Havering-atte-Bower.
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 Havering.

TypeDecisionsRate
Conservatory598
83.4%
Rear Extension8,298
81.6%
Hip-to-Gable Conversion1,700
81.5%
Dormer3,981
77.7%
Wraparound Extension484
77.7%
Loft Conversion2,355
77.3%
Outbuilding1,533
76.6%
Side Extension3,139
76.3%
New Build950
76.2%
Garage / Parking4,193
76.2%
Front Extension1,059
75.3%
Extension (General)676
74.7%
Annex294
68.0%
Basement86
64.0%
Change of Use (Residential)1,242
60.0%
Flat Conversion313
59.1%
HMO179
24.6%
See how this applies to your postcode →

What the data tells us

1
81.6% of rear extension applications in Havering get approved. That means 1,525 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
2
Your ward matters more than you think. The 40.0% gap between St Edwards (100.0%) and Havering-atte-Bower (60.0%) 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

1,525 rear extension applications in Havering 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 Havering planning data

Nearby councils rear extension data

Methodology: Based on 8,298 planning decisions classified as rear extensions in Havering, 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 Havering Council's public planning portal. Full methodology →
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