Understanding how lease extensions work gives you confidence in managing your property’s value. Once you know when to take action and what the process involves, extending your lease becomes straightforward.
Here’s everything you need to know about extending your lease, from what it means to how the process works.
What is a lease extension?
A lease extension adds years to your existing leasehold property. When you bought your flat or house, you got the right to live there for a set number of years rather than owning it outright. Extending your lease maintains your property’s value and keeps your selling and remortgaging options open.
Extending your lease means working with your freeholder to add more years to what you have left. Right now, flat owners can extend their lease by ninety years, while house owners can add fifty years. There’s talk of increasing this to 990 years in future reforms, though that requires new legislation before it happens.
The best part? When you extend through the formal statutory route, your ground rent drops to zero. No more annual ground rent payments for the extended period.
Difference between freehold and leasehold property
If you’re wondering why some properties need lease extensions and others don’t, it comes down to ownership type.
Freehold means you own the property and the land underneath it completely. You have full control and your ownership never runs out. Most houses in the UK are freehold.
Leasehold means you own the property for a fixed number of years as written in your lease. Someone else, the freeholder, owns the land. Most flats are leasehold because you can’t easily split land ownership between different apartments in one building.
The difference between leasehold and freehold affects your day-to-day ownership. Leaseholders usually pay ground rent to the freeholder and service charges for maintaining the building. You need permission for certain changes and must follow your lease terms. Freeholders don’t have these restrictions.
Leasehold vs freehold also affects long-term costs. Leasehold properties need ongoing management and eventually a lease extension to keep their value. Freehold properties are simpler to own with fewer ongoing obligations.
Related: How to sell your property with a short lease?
When should I extend my lease?
The eighty-year mark is an important milestone. Once your lease drops below eighty years, something called marriage value applies. Extending before you reach this point helps you manage costs effectively.
Even if you currently have ninety or one hundred years left, planning works in your favour. Properties with longer leases give you more flexibility for selling and remortgaging.
You used to need to wait two years after buying before you could extend, but that rule disappeared in January 2025. Now you can extend straight away if you want to, giving you much more flexibility.
Mortgage lenders prefer properties with longer leases, particularly those above seventy years. If you’re planning to remortgage or sell in the next decade, extending sooner keeps your options open.
Market conditions matter too. Property values, interest rates and your personal finances all play a part in timing. The proposed changes under the Leasehold and Freehold Reform Act 2024 need additional legislation before they take effect. Current law applies until new rules officially start, so acting based on today’s framework gives you certainty.
Cost of extending a lease
Extension costs depend on several things: how much lease you have left, what your property is worth, your ground rent amount, and whether marriage value applies. You also need to pay professional fees for surveyors and solicitors.
The calculation looks at what extending your lease is worth, any ground rent your freeholder loses, and marriage value if you’re below eighty years. Properties worth more or with shorter leases typically cost more to extend.
Getting an accurate estimate requires a professional valuer. A qualified surveyor looks at your property and works out the premium based on current values and your lease terms. They consider similar properties, local prices and your specific lease details.
You also need a solicitor who knows lease extensions to handle the legal side, negotiate with the freeholder’s team and complete all the paperwork. These professional fees add to your total.
The formal statutory route follows legal procedures under the Leasehold Reform, Housing and Urban Development Act 1993. You serve notice on your freeholder, they respond, and if you can’t agree on terms, a tribunal decides the price.
Informal negotiation offers another option. You can approach your freeholder directly without the formal legal process. This sometimes works out quicker and simpler, especially if your freeholder wants to avoid legal costs. However, informal extensions don’t have the same legal protections and depend entirely on what your freeholder agrees to.
Related: The New PRS Database: A landlord’s guide to early compliance and registration
How to extend your lease
Start by checking your lease details. Find out how many years you have left, what your ground rent is, and look at any relevant clauses. Your lease document has this information, or you can get it from the Land Registry.
Get a qualified surveyor to value your lease extension. They work out what you should expect to pay using official valuation methods. This gives you a realistic starting point.
Hire a solicitor who specialises in lease extensions. They guide you through everything, handle the legal requirements and protect your interests. Lease extension law involves detailed procedures where professional guidance proves valuable.
For the formal statutory route, your solicitor serves an official notice on the freeholder saying you want to extend. The notice includes your valuation and proposed terms. Your freeholder has two months to respond, either agreeing or challenging your valuation.
If you can’t agree, either side can ask the First-tier Tribunal to decide. The tribunal looks at evidence from both parties and makes a binding decision.
Once you’ve agreed terms, whether through negotiation or tribunal, your solicitor completes the legal work. The new lease gets registered at the Land Registry, securing your extended term.
The whole process typically takes six to twelve months from start to finish, though this varies depending on whether you reach agreement quickly or need a tribunal decision.
Understanding leasehold reform changes
The Leasehold and Freehold Reform Act 2024 promises big changes, but most provisions aren’t in force yet. Key parts like 990-year extensions, removing marriage value and capping ground rent valuations still need additional legislation.
There’s also a draft Commonhold and Leasehold Reform Bill from January 2026 proposing to cap ground rents at two hundred and fifty pounds a year for existing leases. However, this is still draft legislation being scrutinised by parliament, not actual law yet.
Don’t delay extending your lease while waiting for potential rule changes. Current law applies until new provisions officially start, which could take time. Acting now based on today’s rules gives you certainty and protects your property’s value.
You can still benefit from future reforms once they’re in place, and extending under current law keeps your property in good shape while those changes develop.
If you’re considering a lease extension or have questions about your leasehold property, speak with your local Whitegates branch for guidance on the next steps.
