The true cost of owning a leasehold flat: what are you really paying for?

Your mortgage may be your biggest housing expense. But thousands of pounds can also go towards running your building each year. Unlike many household costs, these are expenses you may have real opportunities to influence.

Mortgage rates change. Council tax rises. Energy bills fluctuate. You can choose a mortgage deal, switch energy suppliers or reduce consumption, but you cannot decide what interest rates or council tax should be.

Leasehold costs are different. The money you contribute to maintaining, insuring and managing your building is shaped by decisions about contractors, budgets, repairs and long-term planning. You may not make those decisions yourself today, but that doesn't mean you have to remain on the sidelines.

With the right information, legal rights and, sometimes, support from your neighbours, you can question how money is spent, improve management and potentially eliminate ground rent.

And the sums involved make it worth paying attention.

The cost of owning a leasehold flat goes well beyond the mortgage

According to the Hamptons Service Charge Index 2025, the average annual service charge for flats in England and Wales reached £2,405 in 2025, or just over £200 a month. That's 32.6% higher than five years earlier.

To put that into context, consider a worked example for two adults living in an owner-occupied leasehold flat in England:

That's approximately £715 a month before your mortgage. With an illustrative £1,000 monthly mortgage payment, the household's housing-related cash outgoings would be about £20,584 a year.

This is a constructed example, not a national average household budget. Council tax uses England's 2026–27 average per dwelling; water uses Water UK's 2026–27 forecast household average. The other figures, apart from the Hamptons service-charge average, are illustrative. The repair allowance is money put aside rather than necessarily spent that year. A repayment mortgage also builds equity, so its full payment is not purely an expense.

Almost £1 in every £3 could be a leasehold-related cost

In this example, service charge and ground rent total £2,645 a year. That's about 31% of all the listed costs before mortgage payments.

Almost one-third of the budget goes towards charges connected to the leasehold.

That 31% is not a national statistic: it is the result of the assumptions in the table. But it illustrates why leasehold costs deserve the same scrutiny as a mortgage or energy contract.

There's a crucial difference, too. You cannot set your council tax rate or the market's mortgage rates. But when it comes to your building, there may be opportunities to influence who manages it, what work is commissioned, what contractors charge and how future expenditure is planned.

Not every service charge is unreasonable. Good insurance, safe communal areas, reliable lifts and properly funded repairs all cost money. The goal isn't to slash spending indiscriminately. It's to understand whether your money is being spent fairly, efficiently and in your building's long-term interests.

Your building's budget could run into hundreds of thousands

Imagine a block of 50 flats, each paying £2,405 in annual service charges.

Together, that's £120,250 every year. At the same level, it would amount to more than £1.2 million over ten years, excluding any additional major works demands.

Now consider the decisions behind that expenditure. Is the buildings insurance competitively sourced? Are management fees proportionate to the work delivered? Are maintenance contracts good value? Is the reserve fund adequate, or could poor planning lead to much larger bills later?

Even a modest improvement could matter. A hypothetical 5% efficiency improvement on that £120,250 annual budget equates to roughly £6,000 a year, or £30,000 over five years if both the spending level and improvement remain unchanged.

That's an illustration, not a forecast or a promise of savings. Some buildings may need more investment, not less. But it shows how decisions about managing a shared building can affect real money and the future condition of the homes within it.

Four ways leaseholders can take greater control

1. Understand and question your service charges

Your lease determines which costs can be recovered. Leaseholders generally have rights to request a summary of service-charge expenditure and inspect supporting paperwork. For variable service charges covered by the relevant law, costs must be reasonably incurred and work or services must meet a reasonable standard. If something looks wrong, you may have grounds to challenge it.

2. Work together to improve building management

Residents acting collectively can have a stronger voice than an individual raising the same concern alone. A residents' association can coordinate questions, evidence and priorities. In eligible buildings, qualifying leaseholders may be able to use Right to Manage to take over management responsibilities without proving that the current landlord or managing agent has done anything wrong. That can give residents influence over budgets, contractors and maintenance, though it also brings responsibilities.

3. Buy the freehold and potentially remove ground rent

Ground rent is not necessarily a cost you have to accept forever. In a qualifying building, flat owners may be able to join together to purchase the freehold through collective enfranchisement. Once the participating leaseholders own the freehold, they can arrange changes to their leases, including potentially reducing ground rent to zero.

That doesn't happen automatically on purchase: the lease terms must be dealt with properly. Collective freehold purchase also involves eligibility rules, a purchase premium, legal and valuation costs and cooperation between neighbours. Nevertheless, it can provide a route towards lasting ownership and greater control, not just a different managing agent.

4. Consider extending your lease

You don't necessarily need to buy the freehold to deal with ground rent. Under the currently available statutory route, qualifying flat owners can extend their lease by 90 years and reduce ground rent to a peppercorn (effectively zero), subject to paying a premium and relevant costs. The right route depends on your lease and circumstances.

The bigger lesson: leasehold costs are not always fixed, inevitable or beyond your influence. Different problems call for different solutions, but doing nothing isn't your only option.

Taking control is about value, not just lower bills

A low service charge can sound appealing. But if the roof is neglected, reserve funds are inadequate or essential safety work is postponed, today's savings may become tomorrow's major-works demand.

Better management means better value from the money being spent, alongside sensible long-term planning. And high charges can affect more than your monthly budget. Hamptons found that, in 2025, flats marketed with service charges of 1% or less of their value were 50% more likely to find a buyer than flats with charges of 2% or more. That's an observed association, not proof that cutting a service charge will cause a sale.

The point remains: how your building is run can influence your costs, its condition and how attractive your property is to future buyers.

Your first step towards control

You don't need to start a legal challenge or organise a freehold purchase tomorrow. Begin by asking yourself:

• Do I understand what my service charge pays for, and why it has changed?
• Do I know whether major works or ground-rent reviews are coming?
• Am I satisfied with my building's management and the value I'm receiving?
• Do I know which rights and control options are available to me?

UNLEASE's free Leasehold Diagnosis helps you explore those questions across five areas: Clarity, Fair Charges, Control, Good Management and Value. It identifies potential concerns and helps you understand which actions may be worth taking first.

You can begin without creating an account, then register to save your results and access your full personalised findings, relevant tools and prioritised action plan.

You may not be able to control every cost of owning your home. But you can take steps towards greater control of your leasehold costs, your building and your property's future.

Start your free Leasehold Diagnosis