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How does shared ownership work?

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Shared ownership lets you buy a share of a property — typically between 25% and 75% — and pay rent on the remaining share, which is owned by a housing association or similar provider. It is intended to make buying accessible where a full mortgage is unaffordable.

How the money works. You take a mortgage on your share only, so the deposit and mortgage are proportionally smaller. Alongside the mortgage you pay rent on the unowned share, plus a service charge and usually a buildings insurance contribution.

Staircasing is the process of buying further shares over time, often up to 100%. Each purchase is at the current market valuation, not the original price — so in a rising market, increasing your share costs more each time. Newer leases include options to staircase in smaller increments, and some have a 'right to shared ownership' framework with different terms.

The genuine advantages: a much smaller deposit; access to homes otherwise unaffordable; and a route to full ownership.

The criticisms are substantial and worth stating plainly:

You are a leaseholder, not a part-freeholder. Legally you hold a lease, and the provider is your landlord for the rented portion.

Repair liability is usually 100% yours despite owning a fraction. Owning 25% does not mean paying 25% of a new roof. Some newer leases include an initial repair period.

Service charges can be high and are outside your control.

Selling is harder. Most leases give the provider a nomination period to find a buyer first, and the pool of buyers is smaller. Sales are commonly slower than open-market ones.

Rent rises are typically index-linked and can increase faster than wages.

Total cost can exceed renting or a full mortgage in some cases, which is why running the numbers carefully matters.

Read the lease before committing, particularly repair, staircasing and resale clauses.

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