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Rear Extension Approval Rates in Neath Port Talbot

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 4,366 real decisions tell us about rear extension outcomes in Neath Port Talbot.

4,366 real decisions·January 2020 to September 2026·Updated September 2026
98.2%
Approval Rate
4,366
Decisions
4,287
Approved
79
Refused
98.2% approved. But 79 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 Neath Port Talbot.

TypeDecisionsRate
Wraparound Extension293
98.6%
Rear Extension4,366
98.2%
Annex155
98.1%
Conservatory922
98.0%
Side Extension2,291
97.3%
Extension (General)2,485
96.0%
Garage / Parking4,056
95.6%
Loft Conversion135
94.8%
Outbuilding740
94.7%
Dormer711
94.2%
Front Extension351
93.4%
Basement79
92.4%
Flat Conversion140
92.1%
Change of Use (Residential)1,438
91.2%
New Build428
87.1%
HMO60
83.3%
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What the data tells us

1
98.2% of rear extension applications in Neath Port Talbot get approved. That means 79 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

79 rear extension applications in Neath Port Talbot 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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More Neath Port Talbot planning data

Methodology: Based on 4,366 planning decisions classified as rear extensions in Neath Port Talbot, January 2020 to September 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 Neath Port Talbot Council's public planning portal. Full methodology →
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