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Rear Extension Approval Rates in Forest of Dean

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 563 real decisions tell us about rear extension outcomes in Forest of Dean.

563 real decisions·January 2020 to present·Updated June 2026
95.7%
Approval Rate
563
Decisions
539
Approved
24
Refused
95.7% approved. But 24 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 Forest of Dean.

TypeDecisionsRate
Wraparound Extension42
100.0%
Front Extension77
98.7%
Loft Conversion52
98.1%
Side Extension432
97.2%
Conservatory180
96.1%
Rear Extension563
95.7%
Extension (General)650
93.2%
Dormer100
93.0%
Outbuilding389
91.5%
Annex245
89.4%
Garage / Parking1,134
88.9%
New Build516
83.1%
Change of Use (Residential)474
80.4%
See how this applies to your postcode →

What the data tells us

1
95.7% of rear extension applications in Forest of Dean get approved. That means 24 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

24 rear extension applications in Forest of Dean 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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Free · Property report emailed in minutes · Based on 3,290,000+ real decisions

More Forest of Dean planning data

Nearby councils rear extension data

Methodology: Based on 563 planning decisions classified as rear extensions in Forest of Dean, 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 Forest of Dean Council's public planning portal. Full methodology →
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