Heron Financial arranged a £78,000 mortgage for joint shared ownership buyers in Kent, one working in security, the other in public sector administration purchasing a 29.6% share of a £350,000 two-bedroom flat. The clients bought their share for £103,000 with a £25,000 deposit, with the remaining 70.4% (£245,000 of the property’s value) retained by the housing provider and rented from them on top of the mortgage. Heron Financial placed the case with Nationwide for Intermediaries, and the mortgage completed in May 2026.
The clients
The clients were a couple buying in Kent, through the shared ownership scheme. One applicant works in security; the other in public sector administration. Both are paid through PAYE, with steady evidenced income on standard pay scales.
They came to Heron Financial in the situation shared ownership was designed for: a working couple on real but modest joint incomes, priced out of full ownership in their preferred area, but able to comfortably afford the mortgage and rent on a part-share of the same property. The flat they were buying was valued at £350,000 in full, with the clients purchasing a 29.6% share at £103,000 and the remaining 70.4% retained by the housing association.
The case at a glance
- Buyers: Joint shared ownership buyers, employed
- Nationality: British
- Occupations: Security worker + public sector administration professional
- Property type: Two-bedroom purpose-built flat
- Location: Kent
- Full property valuation: £350,000
- Share purchased: 29.6% (worth £103,000)
- Share retained by housing provider: 70.4% (worth £245,000), rent payable on this portion
- Deposit: £25,000 (24.26% of the share being purchased)
- Mortgage amount: £78,000
- LTV against the purchased share: 75.74%
- LTV against full property valuation: 22.43%
- Lender: Nationwide for Intermediaries
- Repayment method: Capital and interest
- Scheme: Shared Ownership
- Completion: May 2026
The challenge
Shared ownership combines three financial commitments in one transaction: a mortgage on the purchased share, rent on the unowned share, and service charge for the building. The case needed handling carefully because shared ownership has specific lender criteria that are different from standard mortgages.
Not all lenders do shared ownership. A meaningful portion of the high street doesn’t lend on shared ownership at all. Of those that do, criteria around minimum share size, rent levels, and the housing association’s lease wording vary. The eligible lender list is narrower than for a standard purchase.
Two layers of affordability. Lenders assess the mortgage payment and the rent the clients will be paying to the housing association, both have to fit within affordability. This is one of the most overlooked points in shared ownership applications. The total of mortgage + rent + service charge needs to be sustainable on the joint income, not just the mortgage payment alone.
LTV is calculated against the purchased share. This is the crucial technical point. The clients bought a 29.6% share for £103,000 with a £25,000 deposit, giving an LTV of 75.74% against the purchased share, not against the full £350,000 property value. Lenders cap LTV on the share at typically 75% (and at 95% with some lenders for stronger profiles). The case landed at exactly the 75% LTV mark, which kept it well inside mainstream shared ownership lender criteria.
The unowned share matters too. The 70.4% retained by the housing association, £245,000 of the property’s value, is owned by them, with the clients paying rent on it (typically calculated as a percentage of the unowned share’s value, often around 2.75% per year). This rent appears in the affordability calculation alongside the mortgage payment.
Lease and housing provider structure. Shared ownership leases have specific clauses about staircasing (buying more of the property over time), restrictions on subletting, repair obligations, and what happens when the clients eventually sell. Lender choice depends partly on whether the housing association’s lease wording is acceptable.
Income shape. Security workers often have shift premiums and overtime; public sector admin is typically steady salaried PAYE. Both incomes are well-treated by mainstream lenders, but the variable element of the security income affects how some lenders assess affordability.
How Heron Financial approached the recommendation
The Heron adviser focused on lender appetite for shared ownership first, because that’s where the case would either run cleanly or not at all.
Lender mapping for shared ownership. Heron Financial narrowed the panel to lenders genuinely active in the shared ownership market, with workable criteria around the share percentage, rent level and lease wording. Nationwide is one of the most established shared ownership lenders on the high street.
Two-layer affordability check. The adviser confirmed how the chosen lender would treat the £78,000 mortgage and the rent on the unowned share simultaneously, with both fitting comfortably within the clients’ joint income.
LTV positioning. The case landed at 75.74% LTV against the purchased share, just at the 75% cap that several shared ownership lenders apply. Heron Financial confirmed Nationwide’s specific approach to the cap so the case held cleanly through underwriting.
Lender choice. Nationwide for Intermediaries was the right home for this case. They have a long track record in shared ownership lending, with criteria designed for the structure, clean treatment of housing association leases, and competitive pricing for the LTV.
Product choice. A fixed rate gave the clients payment certainty in the early years of ownership. Shared ownership buyers face three concurrent monthly payments (mortgage, rent, service charge), so locking in the mortgage element protects the largest part of the monthly outgoings from rate moves while the household settles into the new commitment.
The outcome
The mortgage completed in May 2026. The clients moved into their new home with:
A £78,000 mortgage at 75.74% LTV against the purchased share
A 29.6% share of the property ownership
Rent payable to the housing association on the retained 70.4% share
A fixed rate on capital and interest repayment
The option to staircase (buy more shares) in future as income allows
What this means for buyers in a similar position
If you’re priced out of full ownership in your preferred area but you can comfortably afford a mortgage on a smaller share of a property plus the rent on the rest, shared ownership is genuinely worth understanding. The lender market is narrower than for standard mortgages, the affordability calculation has two layers (mortgage + rent), and LTV is calculated against the share you’re buying, not against the full property value. The scheme is most useful when your income comfortably supports the total monthly outgoings (mortgage + rent + service charge) and you’d like the option to buy more of the property over time as your circumstances allow. A broker who actively works with shared ownership lenders can place the case cleanly and walk you through the long-term implications of the lease.
FAQs
How does a shared ownership mortgage work?
You buy a percentage share of a property (typically 25–75%) with a mortgage on that share, and pay rent to the housing association on the share you don’t own. Your monthly outgoings are: mortgage payment on your share + rent on the unowned share + service charge. LTV is calculated against the share you’re buying, not the full property value.
What percentage share can you buy under shared ownership?
Typically 25% to 75% initially, with the option to “staircase” (buy more shares) over time, often up to 100% in many schemes. Some newer shared ownership schemes allow lower minimum shares (e.g. 10%). The right share depends on what you can afford in mortgage + rent + service charge combined.
What deposit do you need for a shared ownership mortgage?
The deposit is calculated against the share you’re buying, not the full property value. Lenders typically require 5–25% deposit on the share. So on a 29.6% share worth £103,000, a 25% deposit on the share is £25,000, significantly less than 25% of the full £350,000 property value (£87,000). This is one of the main affordability advantages of shared ownership.
Do all mortgage lenders offer shared ownership?
No. A meaningful portion of the high street doesn’t lend on shared ownership. Of those that do, criteria around share percentage, rent levels and the housing association’s lease vary. Nationwide is one of the most established shared ownership lenders. A broker can narrow down which lenders work for your specific case.
What happens when I want to sell a shared ownership property?
You can sell your share. The housing association typically has a “nomination period” (often 8 weeks) during which they have first refusal to find a buyer for your share, after which you can market it more widely. If you’ve staircased to 100% ownership, you can sell on the open market like any other property, subject to any remaining lease conditions.
