I'm considering a 3-storey property with 4 unrelated tenants; does the 'storey' count for mandatory HMO licensing include a habitable basement or a converted attic room, or just standard above-ground floors?
Quick Answer
For mandatory HMO licensing, all habitable floors like basements, converted attics, and standard levels count towards the 'storey' definition, provided they offer usable living space.
## Understanding 'Storey' for UK HMO Licensing
When considering a multi-storey property for a House in Multiple Occupation (HMO), it's crucial to understand how 'storey' is defined for mandatory licensing purposes. Generally, any floor that provides usable living space or accommodation for tenants will count towards the total number of storeys. This includes **habitable basements**, **converted attic rooms**, and all standard above-ground floors. The emphasis is on habitability and use as living space, not merely structural definition.
* **Habitable Basements and Cellars:** If a basement or cellar has been converted to provide living accommodation, especially if it includes a bedroom, kitchen, or bathroom facilities, it will almost certainly be counted as a storey. Many councils specifically define a storey to include any 'floor' that contains living accommodation, irrespective of its original design or position relative to ground level. Renovating a basement could significantly impact your property's HMO status and require specific planning permission, potentially adding £20,000-£50,000 depending on scope.
* **Converted Attic Rooms:** Similarly, a loft or attic that has been converted into a bedroom or other living space is considered a habitable storey. This conversion often involves meeting strict building regulations for head height, fire safety, and escape routes. Converting a loft without proper certification, known as 'ROI on rental renovations', can render it non-habitable and complicate licensing. For example, adding a full attic conversion often costs £25,000-£40,000 and can significantly increase the property's bedroom count and thus its suitability for HMO.
* **Standard Floors:** All intermediate floors above ground level and below the roof are counted as standard storeys, assuming they contain living accommodation.
* **Non-Habitable Spaces:** Conversely, spaces like storage-only basements, uninhabitable lofts, or purely commercial ground floors (if the property is mixed-use) that do not house any living accommodation are typically *not* counted as storeys for licensing purposes.
## Pitfalls to Avoid in HMO Storey Calculation
Miscalculating the number of storeys can lead to significant issues, including operating an unlicensed HMO, hefty fines, and potential revocation of your landlord licence. This is one of the common 'HMO risks' investors often overlook.
* **Ignoring Local Authority Guidance:** Councils can interpret national legislation slightly differently. Always check your specific local authority's guidance on what constitutes a 'storey' to ensure compliance. This is critical for meeting 'HMO licensing requirements'.
* **Assuming 'Above Ground' Only:** A common mistake is to assume only floors above ground level count. As detailed, habitable basements and attics are almost always included, even if they're partially subterranean or fully within the roof space.
* **Overlooking Partial Conversions:** Even a seemingly minor conversion of a basement or attic into a usable room, rather than just storage, can trigger its classification as a storey. Always err on the side of caution.
* **Unlicensed Operation:** Operating an HMO that *should* be licensed due to its size (5+ occupants forming 2+ households across 3+ storeys) without one can result in unlimited fines, a criminal record, and rent repayment orders.
## Investor Rule of Thumb
When assessing a property for HMO potential, if a floor provides any living accommodation, assume it counts as a storey; when in doubt, consult with your local council's HMO officer.
## What This Means For You
Most landlords don't lose money because they get caught out by simple rules, they lose money because they make assumptions about those rules. Understanding the precise definition of a 'storey' for HMO licensing is not just a technicality; it's fundamental to legal operation and avoiding severe penalties. If you want to confidently invest in HMOs and navigate these complex regulations, this is exactly what we analyse inside Property Legacy Education.
Steven's Take
From my own experience, when assessing a property for HMO licensing, the councils are primarily interested in what constitutes 'habitable living space'. I've bought properties where basements were just damp storage, but after conversion, they absolutely counted as a storey. The same applies to attic rooms; if someone sleeps there, or it's used as a main living area, expect it to be counted. The 'storey' definition for mandatory HMO licensing is about how many levels of actual accommodation there are. This directly impacts whether you need a license, which brings specific costs for compliance and application fees, often in the range of £700-£1,500 for a 5-year license, depending on the local authority.
What You Can Do Next
Consult your local council's HMO licensing policy: Check their specific guidance on what constitutes a 'storey' and 'habitable space' for licensing purposes on their planning or housing department website.
Obtain professional advice: Engage an experienced HMO solicitor or a property consultant specialising in HMOs to verify the property's likely licensing requirements based on its structure and planned use.
Review property floor plans: Examine existing or create new floor plans, clearly marking all levels, including converted basements and attics, to accurately assess the number of habitable storeys.
Factor in compliance costs: Include potential licensing fees, fire safety upgrades, and minimum room size adjustments (single 6.51m², double 10.22m²) into your financial projections for the property.
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