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Check compliance for UK mixed-use properties. Planning classes, permitted development, residential-commercial split. Interactive checklist for investors and developers.
Calculate Your SDLT — FreeA mixed-use property combines two or more different planning use classes in one building — typically commercial on the ground floor and residential above. Common examples include shops with flats above, offices with apartments, or pubs with letting rooms. Each use must comply with its own regulatory framework.
Yes — mixed-use properties are taxed at commercial SDLT rates, which are significantly lower than residential rates and don't attract the additional property surcharge. A £300,000 mixed-use property might attract £4,500 in SDLT vs £17,500 as a second residential property.
Potentially, under Class MA permitted development rights (introduced 2021). This allows change of use from Class E (commercial, business, and service) to Class C3 (residential) subject to conditions — the property must have been in commercial use for 2+ years, be under 1,500m², and meet other criteria. Prior approval is still required.
The shop is typically Class E (Commercial, Business and Service) and the flat is Class C3 (Dwelling). Each part of the building is classified separately. Changes within the same class (e.g., shop to office, both Class E) don't usually need planning permission.
Mixed-use properties must provide adequate fire separation between commercial and residential elements (typically 1-hour fire resistance), separate means of escape, acoustic insulation between uses, and compliance with Part B (fire), Part E (acoustics), and Part M (access) of the Building Regulations.