Shared ownership leasehold explained (UK): service charges, repairs and permissions
Shared ownership homes are leasehold. This UK guide explains service charges, repairs and permissions, and how these can change your monthly cost.
Summary
Shared ownership is a way to buy a share of a home and pay rent on the rest — but it’s also a form of leasehold. That matters because the lease sets:
- what you pay each month (including service charges),
- who is responsible for repairs,
- what permissions you need for alterations, and
- how selling/staircasing works.
If you want to see how service charges and rent affect your monthly cost, use:
- Shared ownership calculator: /shared-ownership/
Key terms (quick definitions)
- Leasehold: rights under a lease for a term. See: Leasehold.
- Service charge: costs of managing/maintaining the building/estate. See: Service charge.
- Ground rent: a separate lease payment on some properties. See: Ground rent.
- Staircasing: buying more shares later. See: Staircasing.
How it works
1) Shared ownership is leasehold (so the lease is king)
GOV.UK states shared ownership homes are leasehold. That means you have a legal agreement (the lease) that sets your rights and obligations, and the landlord/freeholder retains an overarching role.
2) Monthly costs aren’t just mortgage + rent
Most people focus on:
- mortgage payment on your share
- rent on the unsold share
But leasehold also often introduces:
- service charges (cleaning, maintenance, management, insurance, major works)
- sometimes ground rent (depends on the lease)
3) Repairs responsibilities can feel “surprising”
Even if you only own a share, you may still be responsible for repairs and maintenance inside the home, with building/communal works recovered through service charges (especially for flats). Always check what your lease says.
4) Permissions matter
Leases often require permission for certain works (for example structural changes). If you ignore this, you can create problems when you sell or staircase.
Worked examples
Example 1: Service charge changes the monthly total (even if your share is the same)
Assume your shared ownership costs are:
- Mortgage: £600/month
- Rent: £420/month
- Service charge: £150/month
Total monthly cost = £1,170/month.
If the service charge rises by £75/month at the next review:
- New total = (£600 + £420 + £225 = £1,245/month)
That’s why service charges must be part of affordability planning.
Example 2: Reserve/sinking funds show up via service charges
Your service charge might include a contribution to a reserve/sinking fund for future major works. For example:
- Service charge: £220/month, including £30/month reserve fund contribution
That £30 is still a cash outflow. Even if it reduces the chance of a huge one-off bill later, it affects your monthly affordability now.
Example 3: Repairs responsibility mismatch
You own 25% but a repair inside the flat costs £500.
Even though your share is 25%, the lease may still make you responsible for 100% of that internal repair cost. This is one of the reasons shared owners should budget a maintenance buffer.
Common mistakes
- Treating shared ownership as “part mortgage, part rent” and ignoring leasehold costs.
- Assuming service charges are fixed (they can change year to year).
- Not reading the lease clauses on repairs/alterations.
- Making improvements without the permissions your lease requires.
- Budgeting without a maintenance buffer.
- Underestimating the extra steps when selling (nominations/valuations/fees vary by scheme).
What to do next
- Related guides:
- Related glossary:
- Related calculator: