Mortgages for dependent relatives
“Dependent relative mortgage” isn’t a single, standard product name anymore, but the scenario absolutely exists and there are lenders who will consider it.
The key is how the property will be used and whether your children will pay you rent, because that determines whether the mortgage is treated as residential, buy-to-let, or a regulated arrangement.
What lenders call this in practice
Most of the time it falls into one of these buckets:
Family (or “dependent relative”) purchase
You’re buying a property for close family to live in, and it’s not a straightforward investment let.
Some lenders will treat this as a specialist residential-style case, assessed primarily on your income and affordability.
Buy-to-let to a family member
If the property is being let to your children and there is rent involved, many lenders class it as a form of family buy-to-let. The important point is that letting to a close relative can be treated differently to a normal buy-to-let, and some lenders simply won’t allow it.
A regulated mortgage contract angle
If the occupancy and payment arrangement creates a consumer-like setup, lenders can treat it as “regulated” rather than an unregulated investment buy-to-let. This affects which lenders and products are available.
In plain English: the mortgage route depends less on the label and more on the living arrangement.
The key questions lenders will ask
1) Who will live there and will they pay rent?
- If your children will live there rent-free, lenders generally assess it on your affordability, much like a second home purchase (even though you won’t live there).
- If your children will pay rent, the lender will want clarity on the rental arrangement and whether they permit letting to family.
2) Is the property exclusively for family use?
Lenders will want to know whether it will be solely occupied by your children, or whether it will also be let to non-family tenants at any point.
3) Your affordability and overall commitments
Because your main home is mortgage-free, that can help. Some lenders won’t need to factor an existing mortgage payment into affordability (because there isn’t one), which can make the onward purchase simpler.
They’ll still assess:
- your income (earned or retirement income)
- your wider commitments and credit profile
- the deposit you’re putting down
- the purchase price and loan-to-value
Typical criteria considerations
While criteria varies by lender, expect the decision to hinge on:
- Loan-to-value: the lower the borrowing relative to the property value, the easier this usually is to place.
- Income strength: particularly if there’s little or no rent being used in the assessment.
- Age and term: if you’re older or retired, lenders will look at retirement income and maximum age at term end.
- Property type: standard flats are usually fine, but things like high-rise, short leases, or complex titles narrow options.
What to do next
Before you go looking for “a dependent relative mortgage”, get the structure clear:
- Will your children pay rent, and if so, roughly how much?
- Will it ever be let to anyone else?
- Is this a long-term family home for them, or a flexible arrangement?
Once that’s clear, a broker can quickly identify which lenders will accept the scenario and whether it’s best approached as a family buy-to-let, a specialist residential case, or another structure.
It would be worth speaking to one of our consultants to look at the different mortgage options. Please call us on 023 8235 2300 or submit an enquiry and we’ll arrange for one of them to contact you.

