What actually happens when a UK leasehold expires

Leasehold is a fixed-term right to occupy a property — typically 99, 125, 250 or 999 years. When that term ends, the right ends with it. Legal title reverts to the freeholder. You stop being the owner.

I’ve watched landlords go pale when this is spelled out properly. “So I just lose the flat?” Yes — that’s literally what the contract says. The leaseholder has a long lease, not ownership of the bricks. When the clock runs to zero, the freeholder gets the property back, with whatever’s been done to it since.

The legal framework that governs this is the Leasehold Reform Act 1967 for houses, the Leasehold Reform, Housing and Urban Development Act 1993 for flats, and most recently the Leasehold and Freehold Reform Act 2024 — which I’ll come back to because it changes the maths on extensions even though the new rates aren’t switched on yet.

The three scenarios in practice

If you genuinely run out the clock without acting, three things can happen at the expiry date:

1. The freeholder offers an assured periodic tenancy. Under Schedule 10 of the Local Government and Housing Act 1989, a long leaseholder of a flat whose lease expires can be served a notice proposing a statutory continuation tenancy at a market rent. You stop being a leaseholder and start being a tenant — paying monthly rent on what used to be your home.

2. The freeholder applies for possession. They serve notice and, if you don’t leave, they apply to the court. Possession is granted and you have to vacate. No compensation. No carry-forward of any improvements you’ve made.

3. Nobody does anything for a while. This happens more than you’d think — small freeholders forget, or the freehold has been sold on multiple times and tracking down the current owner is its own headache. You may carry on living there in legal limbo until the freeholder asserts their rights. Don’t rely on it.

Why most leases never actually expire

In 25 years of investing I’ve never personally seen a residential leasehold run all the way to zero. Not once. Here’s why.

You have a statutory right under section 39 of the Leasehold Reform, Housing and Urban Development Act 1993 (for flats) or sections 1–2 of the Leasehold Reform Act 1967 (for houses) to extend your lease — provided you’ve owned it for at least two years. That right exists whether the freeholder wants to play ball or not. You can force the extension through a tribunal if needed.

The mortgage market does the rest of the work. Most lenders won’t touch a flat with under 70-80 years remaining. So if you let your lease drop, you can’t sell to a buyer who needs a mortgage — which is most buyers. The market punishes inaction long before the lease itself runs out.

That’s why the question on most investors’ lips isn’t really “what happens when it expires” — it’s “when do I need to extend, and what’s it going to cost me?”

The 80-year cliff — and why it matters

Under the regime that’s still in force in May 2026, eighty years is the moment everything changes financially. Drop below 80 years and you start paying marriage value on the extension.

Marriage value is the hypothetical uplift in the property’s value created by extending the lease. The freeholder is entitled to half of it. So a flat that would jump in value by, say, £40,000 once the lease is extended owes the freeholder £20,000 of marriage value on top of the standard premium and ground-rent capitalisation. That’s the cliff.

The Leasehold and Freehold Reform Act 2024 abolishes marriage value entirely — once the new deferment and capitalisation rates are set. The High Court upheld that abolition in October 2025 against challenges brought by freeholder groups. But here’s the catch: as of May 2026 the government still hasn’t set the new rates. The consultation was pushed from Summer 2025 into late 2025 and has been delayed again. So we are stuck with the pre-reform regime in practice, even though the headline reform is law.

What this means for you: if your lease is anywhere near 80 years, don’t wait for the reforms. Extend now under the existing rules. If your lease has plenty of time on it (say 90+ years), you might decide to wait and see whether the new rates land in your favour. That’s the only situation where waiting is defensible.

A real-world example with the numbers

A landlord I work with bought a 2-bed converted Victorian flat in Greenwich in 2018 with 78 years left on the lease. He thought it was fine — the flat was lovely, the location strong, and he was going to extend “in a year or two”. That year or two became five.

By 2023 the lease was at 73 years. Marriage value had been kicking in for the whole period. The premium quoted for a 90-year extension came in at £41,200 plus £5,800 in legal and valuation fees. He paid it because by then no buyer with a mortgage would touch the flat.

If he’d extended in 2019 — when the lease was still north of 80 years — the premium would have been roughly £18,000–£20,000 plus fees. The five-year delay cost him about £25,000. That’s the marriage-value penalty in action.

The lesson isn’t that he was negligent. He just didn’t understand the cliff. Most buyers don’t.

Lease length vs. value, mortgageability, action needed

Here’s the rough hierarchy I use when looking at any leasehold flat:

Anything below 80 years is a problem you need to solve. Anything below 50 years and you’re effectively cash-only — which means you’re selling to other investors at a discount, not to homeowners.

How to extend your lease (statutory route)

The statutory route under the 1993 Act gives you a 90-year extension on top of your existing term, with the ground rent reduced to a peppercorn (effectively zero). It’s the route to use because you’re not negotiating with a freeholder — you’re exercising a legal right.

The process in summary:

1. Check eligibility. You must have owned the lease for at least two years. The lease must originally have been granted for more than 21 years.
2. Get a valuation. Instruct a chartered surveyor experienced with leasehold extensions. They’ll calculate the premium under the existing regime.
3. Serve a Section 42 notice. This formal notice on the freeholder triggers the statutory process. From that moment, the lease length is “frozen” for valuation purposes — even if the actual time keeps ticking.
4. Freeholder counter-notice. Within two months they must respond accepting or contesting the right. They almost always accept the right; the dispute, if there is one, is over the premium.
5. Negotiate or go to tribunal. If you can’t agree the premium, the First-tier Tribunal (Property Chamber) decides. Most cases settle before tribunal.
6. Complete. A new lease is granted with the extra 90 years and ground rent at a peppercorn.

End-to-end: typically 6 to 12 months. Cost: the premium itself, plus your legal and valuation fees, plus the freeholder’s reasonable costs. Under the LFRA 2024 reforms (when activated) you’d no longer pay the freeholder’s costs — but as discussed, those rates aren’t live yet.

What it costs in 2026

The premium varies enormously with lease length, ground rent, and property value. As a rough rule of thumb in May 2026 under the still-active pre-reform regime:

• Lease at 90 years on a £250,000 flat with low ground rent: roughly £6,000–£10,000 premium plus £2,500–£4,000 fees.
• Lease at 80 years on the same flat: roughly £10,000–£15,000 premium plus fees.
• Lease at 70 years (now paying marriage value): roughly £18,000–£28,000 premium plus fees.
• Lease at 60 years: £30,000+ premium plus fees, and a more complex valuation.

These are illustrative — your numbers will depend on the specific ground rent escalation in your lease, the deferment rate the surveyor uses, and the comparables in your area. For a like-for-like estimate get a chartered surveyor — there are free initial calculators on Lease Advice (the government-funded leasehold advisory service) to give you a steer.

If the freeholder is missing or won’t engage

This sounds rare but I’ve seen it more than once, particularly with older converted flats where the original freeholder was a small company that’s been dissolved.

The route here is an application to the County Court for a vesting order under section 50 of the 1993 Act. The court can grant the lease extension despite the freeholder’s absence, and the premium is paid into court. It’s slower and more expensive than the standard process, but it does work.

If you’re in this situation, get a leasehold-specialist solicitor. It is not a DIY job.

Leasehold vs freehold — the practical difference

Most flats in the UK are leasehold. Most houses are freehold. There are still some leasehold houses kicking around, particularly in the North West — and the LFRA 2024 banned the granting of new leasehold houses, which was overdue. If you’re being offered a new-build leasehold house in 2026, walk away. There’s no good reason for it.

For more on which flats and conversions are typically leasehold, see our guide on the best types of property investment for UK landlords.

Common mistakes investors make

Buying without checking the lease length. It is on the front page of the title at Land Registry. There is no excuse for this. I still see investors do it.

Believing the seller’s “we’ll extend after completion” line. If the seller had two years’ ownership, they could have done it. They didn’t because the premium would come out of their pocket. Now it’ll come out of yours.

Letting the lease drop below 80 years. Pure money on fire. As shown in the Greenwich example above, a five-year procrastination can cost £20–25k.

Not factoring service charge volatility. A short-lease flat is bad enough — a short-lease flat where the freeholder is also stinging the leaseholders with inflated service charges and “major works” projects every couple of years is a wealth-destroyer. Check whether the property type is right for your strategy before you bid.

Waiting for the LFRA 2024 reforms to switch on. They might. They might not. They might land in your favour. They might not. If your lease is below 85 years, do the maths under the current rules and act on the current rules. If you’re at 110+ years, you have the luxury of waiting.

FAQ

What happens if my leasehold expires and I’m still living there?

Under Schedule 10 of the Local Government and Housing Act 1989, you can be granted an assured periodic tenancy by the freeholder at a market rent. You stop being a leaseholder and become a tenant. The freeholder can also seek possession via the courts.

Can a leasehold property be repossessed when the lease expires?

Yes — the freeholder can apply to court for possession once the lease has ended. There’s no automatic right to remain. There’s no compensation for improvements you’ve made.

Do leases ever just disappear?

Almost never. The mortgage market and your statutory right to extend mean that leases either get extended, the freehold gets bought out, or the property gets sold cash to an investor who extends afterwards. A genuine expiry is vanishingly rare.

How much does a 90-year statutory extension cost in 2026?

Under the still-active pre-reform regime, expect £6,000–£15,000 premium for a flat with 80–95 years remaining, rising sharply once you drop below 80 years. Add £2,500–£4,000 in legal and surveyor fees on top. The LFRA 2024 will change these numbers once the rates are set — date unknown as of May 2026.

Can I extend my lease informally without going through Section 42?

You can — the freeholder may be happy to grant a longer lease in return for a one-off premium without the statutory paperwork. The downside is that informal extensions don’t reset the ground rent to a peppercorn, and you have no leverage if the freeholder asks for too much. The statutory route is usually better, even if it takes longer.

What’s the difference between extending a lease and buying the freehold?

Extending the lease adds 90 years to your existing term and zeroes the ground rent. Buying the freehold (called collective enfranchisement for flats, or just freehold purchase for houses) means you and the other leaseholders own the building outright. Enfranchisement is more powerful but more complex — you need at least 50% of the leaseholders to participate for a block of flats. For a leasehold house it’s simpler.

If the Leasehold and Freehold Reform Act 2024 abolishes marriage value, should I wait?

Only if you have plenty of time. The Act is law but the new deferment and capitalisation rates haven’t been set as of May 2026, so the old regime (including marriage value) is still in force. If you’re below 85 years, the cost of waiting under the current regime will likely outweigh any future saving. Above 100 years, you can afford to watch.

Are all flats leasehold?

The vast majority in England and Wales, yes. There’s a growing minority of commonhold developments, and you can sometimes get a “share of freehold” arrangement where the leaseholders collectively own the freehold via a management company. Scotland operates differently — most Scottish flats are owned outright on a “tenement” basis, not leasehold.

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