Fleet Mortgages has published a new guide aimed at helping advisers and landlords navigate the complex landscape of Houses in Multiple Occupation (HMOs), as investor interest in the high-yielding property type continues to grow.
The buy-to-let specialist lender’s publication, A Guide to HMOs: Licensing, Planning & Article 4, was launched today and is now available for download via its website. It sets out to clarify the legal and regulatory requirements that often surround HMO investments, offering a detailed overview of licensing rules, planning categories and the impact of Article 4 Directions.
DETAILS
Designed for mortgage advisers and their clients, the guide distinguishes between small and large HMOs, and explains the various licensing regimes – including Mandatory, Additional and Selective Licensing – that local authorities may require. It also provides a breakdown of the planning use classes relevant to landlords, including the differences between C3 (standard residential), C4 (small HMOs), and Sui Generis (larger HMOs), and discusses when planning permission is necessary for change of use.
In particular, the guide addresses the increasing use of Article 4 Directions by local councils to limit permitted development rights for HMO conversions, a key consideration for landlords seeking to expand their portfolios in urban centres. By providing real-world examples of licensing and planning scenarios, Fleet hopes to equip advisers with practical insights to better support their clients.

Steve Cox, chief commercial officer at Fleet Mortgages, said the guide was created in response to “growing interest in HMO investment” and forms part of the lender’s broader commitment to supporting specialist buy-to-let borrowers.
“HMOs remain an attractive investment opportunity, often providing higher yields and greater income security than standard buy-to-let properties,” said Cox. “However, they come with a more complex regulatory landscape, particularly around licensing and planning.”
He added that the guide aims to “demystify” these requirements, helping advisers to understand Article 4 areas, the nature of different licensing schemes, and the kinds of properties that can be considered for HMO status.
“We want advisers to feel confident discussing HMOs with their clients, and to know that Fleet is here to help with both product expertise and lending support,” Cox said.