DSS HMO mortgage: detailed guide

A DSS HMO mortgage finances a House in Multiple Occupation let directly to tenants whose rent is paid wholly or partly through housing benefit or Universal Credit. Specialist lenders underwrite these cases on the tenancy structure, the property type and the rental income. Where the property is leased to a housing provider, or the tenants receive support or care, it is a social housing case instead, with different lenders.

Lenders use one of three methods: a residential comparable valuation for smaller HMOs that resemble a family home, a hybrid valuation for HMO-adapted properties that keep residential characteristics, or a commercial MV1 yield-based valuation for larger HMOs run mainly as income-generating investments.

Lender appetite for benefit-supported tenancies varies widely and is not always published. A broker who specialises in HMO lending can identify which lenders accept your tenancy structure and compare their criteria before an application is made.

A further advance is additional borrowing on the existing mortgage from the same lender, commonly used for property improvements, expansion or a further purchase. The lender assesses the extra borrowing before agreeing it.

A product transfer switches the mortgage to a different product with the same lender, often without a new application. It can help when your circumstances change or the lender has a more competitive rate in its range.