If you own a flat in England and Wales, the length of your lease is one of the most important numbers attached to your home. Once a lease drops below…
If you own a flat in England and Wales, the length of your lease is one of the most important numbers attached to your home. Once a lease drops below around 80 years, extending it typically becomes more expensive because an additional payment known as "marriage value" (the uplift in the flat's value created by the extension) becomes payable to the freeholder. Shorter leases can also make a property harder to mortgage, as many lenders set minimum unexpired terms, which in turn narrows your pool of future buyers. Leaving an extension too late can therefore affect both what your home is worth and how easily you can sell it.
There are broadly two routes: a statutory extension under the Leasehold Reform, Housing and Urban Development Act 1993, which gives qualifying leaseholders a legal right to extend, and an informal extension negotiated directly with the freeholder on agreed terms. This article focuses on flats under the 1993 Act. It is also worth flagging that the Leasehold and Freehold Reform Act 2024 is reshaping several aspects of lease extensions, including qualifying criteria and premium calculation. Not all provisions are in force at the same time, so readers should verify the current commencement status before relying on any specific change.
The Statutory Route Under the Leasehold Reform, Housing and Urban Development Act 1993
If you want to know how to extend a lease UK-wide, the position in England and Wales is set by the Leasehold Reform, Housing and Urban Development Act 1993. This gives qualifying flat owners a legal right to extend, rather than relying on the freeholder's goodwill.
To qualify at present, you must have owned the property for at least two years (you do not need to have lived in it). The Leasehold and Freehold Reform Act 2024 is expected to remove this two-year wait, but the relevant provisions require secondary legislation before they take effect, so the commencement date should be verified before you rely on it. Lauren Basger, solicitor, notes that the timing of these reforms is one of the first things worth checking on any new instruction.
The statutory extension adds 90 years to whatever term remains on your lease and reduces the ground rent (the annual sum payable to the freeholder) to a peppercorn, meaning nothing is actually collected.
The process begins with a Section 42 notice, a formal written claim served on the freeholder setting out your proposed premium (the price you will pay for the extension). The freeholder then has a set period to serve a counter-notice, either accepting the claim or proposing different terms. If the two sides cannot agree the premium or other terms, either party can apply to the First-tier Tribunal (Property Chamber), the specialist body that decides disputed lease extension terms.
This statutory route applies in England and Wales only. It sits alongside the informal route, where terms are negotiated directly without serving notices, which can be quicker but offers fewer protections.
The Informal (Voluntary) Route: Negotiating Directly With Your Freeholder
Not every lease extension needs to go down the formal statutory path. You can approach your freeholder (the person who owns the building outright) and simply ask to negotiate new terms. No Section 42 notice, the formal legal request under the Leasehold Reform, Housing and Urban Development Act 1993, is served, and the process sits outside the statutory framework.
The appeal is understandable. Informal deals can move more quickly, professional costs are often lower because valuations and legal steps are less prescribed, and there is room to agree a term length that suits both sides, sometimes longer than the statutory 90-year uplift.
The trade-offs matter, though. Freeholders may propose a modest extension paired with a rising ground rent, or slip in clauses that make the flat harder to sell or mortgage later. You lose the protections the statutory route builds in, including the set valuation basis and the ability to challenge terms at the First-tier Tribunal.
Informal negotiation can suit straightforward cases where the freeholder is reasonable and the numbers stack up. Where the lease is short, the ground rent is already problematic, or trust is thin, the statutory route is usually safer. Solicitor Lauren Basger recommends that any offer from a freeholder is reviewed in full before signing, the wording of the new lease is where the risk sits.
The 80-Year Trap, Marriage Value and Premium Considerations
Once a lease drops below 80 years unexpired, the premium (the sum paid to the freeholder to extend) rises sharply because of what is known as marriage value, the uplift in the property's value created by extending the lease, which under current law must be shared equally between leaseholder and freeholder. Above 80 years, marriage value does not apply. Below it, you are effectively paying the freeholder half of the gain your extension creates.
The Leasehold and Freehold Reform Act 2024 is expected to abolish marriage value, though the commencement dates for the relevant provisions still need to be verified before relying on them. Until those sections are in force, the 80-year threshold remains a hard financial line.
Valuation is not a DIY exercise. A RICS-qualified surveyor (a surveyor accredited by the Royal Institution of Chartered Surveyors) will assess the premium based on the remaining term, the ground rent payable, the value of the property with a short lease compared to a long one, and prevailing capitalisation and deferment rates. No two valuations are identical, and figures shift with the market.
Lauren Basger, solicitor, notes that leaseholders approaching the 80-year mark should take advice early, as delays of even a few months can materially change the sum payable. Acting before the threshold, rather than after, is, under current rules, the single most effective way to contain the cost of how to extend a lease UK owners face.
Buying or Selling a Short-Lease Property: Assigning the Section 42 Notice
If you are selling a flat with a short lease (broadly, one nearing or under 80 years), a buyer may hesitate because the statutory right to extend under the Leasehold Reform, Housing and Urban Development Act 1993 currently requires two years of ownership. Note: the Leasehold and Freehold Reform Act 2024 is expected to remove that two-year qualifying period, but commencement dates for individual provisions need to be verified before you rely on them.
To bridge the gap, sellers often serve a Section 42 notice (the formal tenant's notice claiming a new lease) before completion and then assign the benefit of that notice to the buyer. The assignment is dealt with in the contract pack: the notice, the freeholder's counter-notice if received, and a deed of assignment transferring the claim are included alongside the transfer deed, so the buyer steps into the seller's shoes and continues the claim without waiting.
Who serves and who pays is a negotiation point. Buyers often prefer the seller to serve, because it protects the claim; sellers may agree if the buyer covers the premium and costs, which vary by property and must be assessed individually. Timing matters: the notice should be served before exchange, and the assignment must complete simultaneously with the sale. Lauren Basger can advise on structuring this.
Solicitor Insight: What the Leasehold and Freehold Reform Act 2024 Changes
The Leasehold and Freehold Reform Act 2024 was passed in the final days of the last Parliament and sets out significant changes to how leaseholders in England and Wales can extend their leases. Lauren Basger, solicitor, notes that while the Act is on the statute book, much of it depends on secondary legislation (the detailed rules ministers still need to make) before it takes practical effect.
The headline reforms relevant to lease extensions include:
- Removal of the two-year ownership rule. Under the current Leasehold Reform, Housing and Urban Development Act 1993, you must have owned the property for at least two years before claiming a statutory extension. The 2024 Act proposes to scrap this, so leaseholders could apply from day one of ownership.
- A longer statutory extension. The standard uplift is set to rise from 90 years to 990 years on top of the remaining term, for both flats and houses.
- Reform of the premium calculation. The Act proposes to abolish marriage value (the extra sum payable where a lease has fallen below 80 years) and to change how the premium, the price paid to the freeholder, is worked out.
Important caveat: at the time of writing, several of these provisions are not yet in force and require commencement regulations. Timing has not been confirmed, and rates used in any premium calculation are subject to change.
Before relying on any reform, verify the current commencement status on GOV.UK or ask a solicitor to check the position for your specific lease.
Typical Steps, Documents and Professional Parties Involved
Extending a lease through the statutory route under the Leasehold Reform, Housing and Urban Development Act 1993 usually starts with instructing a solicitor experienced in leasehold work, alongside a RICS-registered surveyor (a valuer accredited by the Royal Institution of Chartered Surveyors) to assess the premium payable.
Your solicitor will gather the existing lease, the freeholder's contact details, and the official copies of the Land Registry title. From there, they draft and serve the Section 42 notice, the formal tenant's notice claiming a new lease, which sets out the proposed terms and premium.
The freeholder then has a period, currently two months from service, to respond with a counter-notice accepting or disputing the claim. Negotiation between the surveyors typically follows. If the parties cannot agree, either side may refer the dispute to the First-tier Tribunal (Property Chamber) for determination.
Once terms are settled, the new lease is completed, the premium paid, and the deed sent to HM Land Registry for registration against the title. Lauren Basger, solicitor, notes that the Leasehold and Freehold Reform Act 2024 is expected to alter aspects of this process, including the two-year ownership requirement and valuation rules, commencement dates for individual provisions should be verified before proceeding. Fees and timescales vary and should be confirmed at the outset.
Next Steps: Speak to a Conveyancing Solicitor
Extending a lease in England and Wales sits at the crossroads of two regimes: the Leasehold Reform, Housing and Urban Development Act 1993, and the Leasehold and Freehold Reform Act 2024, parts of which are being brought into force in stages (commencement dates should be verified before you rely on them). That shifting picture makes tailored advice worthwhile, because the route you choose, informal negotiation with the freeholder, or the statutory (formal legal right) process, will affect cost, terms, and timing.
Early advice matters most if your lease is approaching 80 years, the point at which the premium (the sum payable to extend) typically rises sharply, or if you are preparing to sell and a short lease could deter buyers or lenders.
Lauren Basger, a conveyancing solicitor at the firm, can review your lease, weigh the statutory and informal options against your circumstances, and explain how pending reforms may affect your position. Contact us to arrange a case-specific assessment.
Disclaimer: This article provides general information only and does not constitute legal advice on any individual circumstances.