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Rear Extension Approval Rates in Loch Lomond & The Trossachs National Park

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 191 real decisions tell us about rear extension outcomes in Loch Lomond & The Trossachs National Park.

191 real decisions·January 2020 to August 2026·Updated August 2026
98.4%
Approval Rate
191
Decisions
188
Approved
3
Refused
98.4% approved. But 3 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.

Check Planning Approval Patterns in Loch Lomond & The Trossachs National Park

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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 Loch Lomond & The Trossachs National Park.

TypeDecisionsRate
Wraparound Extension23
100.0%
Rear Extension191
98.4%
Conservatory278
98.2%
Dormer177
96.6%
Side Extension106
96.2%
Extension (General)1,688
96.1%
Garage / Parking871
94.4%
Annex35
94.3%
Outbuilding358
93.6%
Change of Use (Residential)764
92.1%
Flat Conversion28
89.3%
New Build1,024
86.9%
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What the data tells us

1
98.4% of rear extension applications in Loch Lomond & The Trossachs National Park get approved. That means 3 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

3 rear extension applications in Loch Lomond & The Trossachs National Park 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 3,780,000+ real decisions

More Loch Lomond & The Trossachs National Park planning data

Methodology: Based on 191 planning decisions classified as rear extensions in Loch Lomond & The Trossachs National Park, January 2020 to August 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 Loch Lomond & The Trossachs National Park Council's public planning portal. Full methodology →
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