How Shared Ownership works

Shared Ownership lets you buy a share of a property — typically starting from around 10% up to 75% — through a mortgage on that share, while paying rent (usually below market rate) to a housing association on the remaining share you don't own.

Who it's aimed at

Shared Ownership is generally aimed at first-time buyers, or those who used to own a home but can't currently afford to buy one outright, whose household income falls below a regional cap and who can't afford the full deposit and mortgage for outright ownership of a similar property in the same area.

"Staircasing" — increasing your share

Over time, you can typically buy additional shares in the property — a process called staircasing — reducing the rent you pay proportionally, up to eventually owning 100% in many schemes. Each staircasing transaction usually involves a property valuation (since the price you pay reflects the property's current market value, not its original price) and legal costs, so it's not entirely free to do.

Costs to budget for

  • A mortgage deposit on just your share (smaller than a full-property deposit, but still required)
  • Monthly mortgage payments on your share, plus rent on the remainder
  • Full service charges and buildings insurance, typically based on the whole property, not just your share
  • Stamp Duty, which can be paid either upfront on the full market value or staged as you staircase, depending on the option chosen at purchase

Things to check before committing

Read the lease carefully for staircasing terms, any restrictions on subletting, and how service charges are set and can change over time. Shared Ownership properties can sometimes be harder or slower to sell than outright-owned homes, since a buyer must also qualify for the scheme (unless you've staircased to 100%) — worth factoring into your longer-term plans.

Key takeaways

  • You buy a share (typically 10–75%) and pay reduced rent on the rest.
  • Staircasing lets you buy further shares over time, at the property's then-current value.
  • You're usually responsible for full service charges and insurance despite only part-owning.
  • Reselling can be more restricted than for outright ownership — check the lease terms carefully.