Loft Conversion Cost in Aberdeen: 2026 Price Guide
08 Aug 2026
Aberdeen's granite tenement and terraced housing, common across the West End and Rosemount, tends to have solid, steeply pitched roof structures that generally suit a loft conversion well - though matching any new dormer cladding to the existing granite is a genuinely specific local cost that a builder from outside the area might not price accurately.
| Type | Typical cost |
|---|---|
| Rooflight (Velux) conversion | £17,000-£29,000 |
| Rear dormer conversion | £29,000-£43,000 |
| Hip-to-gable or mansard | £43,000-£64,000 |
Planning permission and building warrant - two separate approvals
Most loft conversions in Aberdeen fall under permitted development for planning purposes, but Scotland's separate building warrant system still applies regardless - it confirms the construction itself meets building standards, and is a genuinely distinct process from planning permission. Skipping it is a common and costly oversight that can cause real problems when selling the property later.
A dormer visible from the street is more likely to need full planning permission than a rear-facing one, particularly in the West End's conservation areas where Aberdeen City Council's planning officers expect materials to match the surrounding granite streetscape.
Tenement conversions
Aberdeen has a genuine stock of granite tenement flats, similar in concept to Glasgow's but built in the local stone - converting the loft of a tenement's top-floor flat is a specific, more complex job than a standard house conversion, and worth discussing directly with a builder who has tenement experience specifically.
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Frequently asked questions
How much does a loft conversion cost in Aberdeen?
A rooflight (Velux) conversion runs £17,000-£29,000, a rear dormer £29,000-£43,000, and a hip-to-gable or mansard conversion £43,000-£64,000.
Do I need a building warrant for an Aberdeen loft conversion?
Almost always yes - Scotland's separate building warrant system applies regardless of planning permission status, confirming the construction meets building standards, and skipping it can cause problems when selling the property later.
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