Shared Ownership lets you buy part of a home and rent the rest, lowering the upfront cost of getting onto the ladder. This guide explains how shared ownership works: the share you buy, the rent you pay, staircasing to buy more, the leasehold costs, eligibility, and the pros and cons to weigh.

What shared ownership is

Shared Ownership lets you buy a share of a property, commonly between 10% and 75%, and pay rent on the remaining share, usually to a housing association. You take out a mortgage and deposit only for the share you are buying, not the whole property, which makes the upfront costs much lower than buying outright. It is aimed at people who cannot afford to buy a home fully on the open market.

The share you buy

The share you buy depends on what you can afford and the scheme's rules, often starting from as little as 10% under newer models, up to 75%. The smaller the share, the lower your mortgage and deposit, but the more rent you pay on the rest. Choosing a share that balances an affordable mortgage with manageable rent is a key decision when buying through Shared Ownership.

The rent on the remaining share

On the share you do not own, you pay rent to the housing association, typically charged at a percentage of that share's value, often around 2.75% a year. So your monthly cost combines the mortgage on your share and the rent on the rest. This rent is in addition to the mortgage, so it is important to budget for both when working out whether Shared Ownership is affordable for you.

Staircasing to buy more

Over time, you can usually buy further shares in your home, a process called staircasing, increasing the proportion you own and reducing the rent you pay, as our guide to staircasing explains. Some people staircase all the way to 100%, owning the home outright. Staircasing lets you build up your ownership as your finances allow, which is one of the appeals of Shared Ownership over renting.

Leasehold and service charges

Shared Ownership homes are leasehold, so as well as your mortgage and rent, you usually pay service charges and sometimes ground rent, particularly on flats. These extra costs can be significant and can rise, so it is important to budget for them and review the lease carefully before buying. Understanding the full cost, mortgage, rent and service charges, is essential to judging whether a Shared Ownership home is affordable.

Eligibility

Shared Ownership has eligibility criteria, typically including a household income below a cap (often around £80,000, or £90,000 in London), being unable to afford a suitable home on the open market, and usually being a first-time buyer or not currently owning a home. Criteria can vary by scheme and region. Checking whether you qualify, and the specific rules where you are buying, is an important first step.

The pros and cons

The main advantage of Shared Ownership is a much lower upfront cost, letting people buy who could not otherwise, with the chance to staircase later. The drawbacks include paying both mortgage and rent, leasehold costs, restrictions on selling, and only owning part of the home. Weighing these against renting or saving longer to buy outright, as our guide to shared ownership versus buying explains, helps you decide if it suits you.

Mortgages for shared ownership

You take out a mortgage on the share you are buying, and not all lenders offer shared ownership mortgages, so the choice can be narrower. The lender assesses affordability on your mortgage plus the rent and service charges, as our guide to how much you can borrow explains. A broker familiar with shared ownership can help find a suitable lender, since the combination of mortgage and rent affects what you can borrow.

An example of the costs

Suppose a home is valued at £300,000 and you buy a 40% share for £120,000, with a mortgage and deposit on that amount. You then pay rent on the remaining 60% (£180,000), often around 2.75% a year, roughly £4,950 annually or about £413 a month, plus any service charge. Your total monthly cost is the mortgage plus the rent plus service charges, which is why budgeting for all three matters.

Selling a shared ownership home

When you come to sell, shared ownership homes often have specific rules, such as the housing association having a period to find a buyer first, and the sale being to another eligible buyer if you have not staircased to 100%. This can make selling slower than a normal home. Understanding the selling process before you buy helps you know what to expect if your circumstances change later.

Repairs and responsibilities

Even though you own only a share, you are usually responsible for the upkeep and repairs of the whole home, as if you owned it outright, particularly on houses. On flats, repairs to the building may be covered by service charges. Knowing that you typically bear the maintenance costs, despite owning only part, is important when budgeting, as it adds to the mortgage, rent and service charges.

Shared ownership versus renting

Compared with renting, shared ownership lets you own a stake in a home, benefit from any rise in its value on your share, and potentially staircase to full ownership, while building equity rather than only paying a landlord. The trade-offs are the responsibilities of ownership, the leasehold costs, and less flexibility to move. For some, it is a stepping stone from renting towards full ownership, which is part of its appeal.

Is shared ownership right for you?

Shared Ownership can suit those who cannot afford to buy outright but want to own a stake in a home and build towards full ownership, accepting the leasehold costs and responsibilities. It suits less well those who could afford to buy outright, or who want full ownership and flexibility from the start. Weighing the lower upfront cost against paying both mortgage and rent, and the leasehold conditions, helps you decide if it fits your situation.

Doing the sums carefully

Because Shared Ownership involves a mortgage, rent and service charges, plus the responsibilities of ownership, it is important to work out the full monthly and ongoing cost before committing, as our guide to the true cost of buying explains. A clear picture of all the costs, not just the mortgage, ensures the home is genuinely affordable and that Shared Ownership is the right route for you rather than renting or saving longer.

In short

Shared Ownership lets you buy a share of a home, often 10% to 75%, and pay rent on the rest, so you need a mortgage and deposit only for your share, lowering upfront costs. You can staircase to buy more over time. The homes are leasehold, with service charges, and there are eligibility rules and income caps. It suits those who cannot buy outright, but you pay both mortgage and rent.

Where to get help and next steps

Read our guides to government schemes overview, staircasing, shared ownership versus buying, and First Homes. This is general information, not mortgage or financial advice; scheme rules change, so check current details.