For buyers who can't yet stretch to a full mortgage deposit, Shared Ownership and other government-backed schemes offer an alternative route onto the property ladder. They're not right for everyone, but understanding how they work can open doors that a conventional purchase might not.
What is Shared Ownership?
Shared Ownership allows you to buy a percentage share of a property — commonly between 10% and 75% — via a mortgage, while paying rent (usually to a housing association) on the remaining share you don't own. Because you're only mortgaging part of the property's value, the deposit required is a percentage of your share, not the full purchase price, which significantly lowers the initial cash needed.
Who is eligible?
Eligibility criteria are generally set at scheme or housing-association level but typically include a household income cap (often around £80,000 outside London and £90,000 within London), and priority is usually given to first-time buyers, those who used to own a home but can no longer afford one, and existing shared owners looking to move.
How the rent and total monthly cost work
You'll pay: (1) mortgage repayments on your owned share, (2) rent on the unowned share — typically around 2.75% of its value per year, charged monthly, and (3) a service charge if the property is part of a managed development. It's essential to add all three together, not just the mortgage payment, when comparing affordability against a conventional purchase.
Staircasing: increasing your share over time
"Staircasing" is the process of buying further shares in the property once you can afford to, gradually reducing the rent you pay and increasing the equity you own — in many cases up to 100% ownership. Each staircasing transaction typically requires a new valuation of the property (as its value may have changed) and involves legal and valuation fees, so it's not free to do, but it's a genuine path to full ownership over time.
Pros and cons of Shared Ownership
| Pros | Cons |
|---|---|
| Lower deposit needed to get on the ladder | You still pay rent on the unowned share |
| Path to full ownership via staircasing | Service charges can be significant on some developments |
| Available on new-build and some resale homes | Selling can be slower — housing association may have first refusal |
| Government-backed, regulated framework | Fewer mortgage lenders specialise in Shared Ownership products |
Other government-backed routes worth knowing
- First Homes scheme: New-build homes sold at a discount (typically 30–50%) to market value for eligible first-time buyers and key workers, with the discount passed on to future buyers too.
- Mortgage guarantee-style schemes: Periodically offered by government or lenders to support 95% LTV lending by underwriting some of the lender's risk, widening access to low-deposit mortgages.
- Deposit Unlock and lender-specific new-build schemes: Industry-backed schemes allowing smaller deposits specifically on new-build purchases.
Availability of government schemes changes over time, so always check current eligibility directly with Homes England, your local Help to Buy agent, or a mortgage broker before planning around a specific scheme.
Is Shared Ownership right for you?
Shared Ownership tends to suit buyers who: have a stable, provable income but limited savings; are happy in a specific area where suitable Shared Ownership developments exist; and are comfortable with the idea of gradually staircasing rather than owning outright from day one. It tends to suit fewer buyers who need maximum flexibility to sell quickly, or who are strongly deposit-averse to paying any ongoing rent at all.
Steps to apply
- Check eligibility with your local Help to Buy or homeownership agent, or the specific housing association marketing the scheme.
- Get a mortgage in principle from a lender that offers Shared Ownership mortgages — not all do.
- Reserve your share of the property and instruct a solicitor experienced in Shared Ownership leases.
- Complete your mortgage application and legal process, much like a standard purchase but with additional lease terms to review.
For related reading, see our guides on How Much Deposit Do You Need for a UK Mortgage? and What Is a Mortgage in Principle & Why It Matters.
Our free Mortgage Affordability Calculator can help you check this against your own figures.
The bottom line
Shared Ownership and related government schemes can meaningfully lower the deposit barrier to homeownership, but the ongoing rent and service charges mean it's important to calculate your true total monthly cost — not just the mortgage — before deciding it's cheaper than renting or saving for longer toward a conventional purchase.