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Rear Extension Approval Rates in Hastings

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 681 real decisions tell us about rear extension outcomes in Hastings.

681 real decisions·January 2020 to present·Updated March 2026
90.2%
Approval Rate
681
Decisions
614
Approved
67
Refused
90.2% approved. But 67 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 Hastings.

TypeDecisionsRate
Hip-to-Gable Conversion52
96.2%
Conservatory192
94.3%
Wraparound Extension30
93.3%
Rear Extension681
90.2%
Dormer368
88.6%
Side Extension373
87.4%
Outbuilding188
85.6%
Loft Conversion247
85.0%
Basement217
84.3%
Extension (General)386
83.7%
Change of Use (Residential)506
83.6%
Annex55
83.6%
Front Extension93
81.7%
Garage / Parking993
80.9%
New Build265
78.9%
Flat Conversion104
78.8%
HMO78
75.6%
See how this applies to your postcode →

What the data tells us

1
90.2% of rear extension applications in Hastings get approved. That means 67 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

67 rear extension applications in Hastings 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 Hastings planning data

Nearby councils rear extension data

Methodology: Based on 681 planning decisions classified as rear extensions in Hastings, 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 Hastings Council's public planning portal. Full methodology →
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