Negotiating a Lease Extension Premium
Lease extension cost negotiations are like any other property transaction: you want to pay less, and the freeholder wants you to pay more. The difference is that a statutory lease extension relies on a complex legal formula to calculate the exact premium.
Negotiations usually break down when either party acts unreasonably, or when offers are made blindly without the backing of a professional RICS valuation.
This article explains how to successfully negotiate a lease extension premium, provides a downloadable template letter to approach your freeholder, and outlines how to avoid expensive Tribunal hearings.
Need further help? For more information on other types of lease extensions, including guides on formal lease extensions and dealing with an absent freeholder, visit our comprehensive guide to leasehold extensions.
- When do you negotiate the premium?
- Step 1: Get a RICS lease extension valuation
- Step 2: Make an informal offer (template included)
- Step 3: Serve the Section 42 Notice
- Step 4: Handle the Section 45 Counter-Notice
- Step 5: Instruct your surveyor to negotiate
- Step 6: Do not be afraid to go to the Tribunal
- Checklist: How to prepare for a successful lease extension negotiation
- Valuation first: Any reasonable negotiation must be based on a RICS valuation.
- Early offers: You can begin negotiating before you serve a formal Section 42 notice.
- Tribunal fallback: If your freeholder refuses to agree to a fair lease extension premium, you may be able to force a resolution at the First-tier Tribunal.
When do you negotiate the premium?
You can negotiate at two distinct points during the process: informally before any legal notices are served, and formally after the freeholder responds to your legal claim with a counter-offer.
Step 1: Get a RICS lease extension valuation
The statutory calculation used to work out what to offer the freeholder for the additional 90 years is highly complex. Because the formula factors in the reversion rate, current market values, and marriage value (if your lease has fallen below 80 years), you must instruct a specialist RICS surveyor to provide an accurate valuation.
Important Update: The Leasehold and Freehold Reform Act 2024
The Leasehold and Freehold Reform Act 2024 contains provisions to abolish marriage value and increase the standard statutory extension from 90 years to 990 years. However, these specific valuation changes are not yet in force. Until the government passes the required secondary legislation, all statutory extensions are still calculated using the existing 1993 Act rules.
Most specialist RICS surveyors will calculate a "best-case" and "worst-case" scenario for what you should pay under the active statutory formula. This bracket will anchor your negotiations. You should always budget for the worst-case scenario.
Expert Tip: You cannot win a negotiation using an online calculator
Free online lease extension calculators use data you type in, and unless you are a trained RICS surveyor, the output is unlikely to be accurate. Your freeholder will be unlikely to use a calculator estimate during negotiations because it lacks professional credibility.
A freeholder's surveyor will demand to see a qualified RICS valuation that accurately factors in the term rate, the reversionary rate, and local property relativity. If you try to negotiate without one, you will inevitably have to pause the process and pay for a proper survey anyway. Furthermore, if the case goes to the First-tier Tribunal, a professional RICS valuation is a mandatory piece of evidence required to determine the final premium.
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Step 2: Make an informal offer
If you have a direct relationship with your freeholder, you can attempt to negotiate before incurring heavy legal fees. An informal offer does not start the formal statutory process or provide the same procedural protections as serving a Section 42 Notice, so get advice on whether it is suitable for your circumstances. Inform them of your intention to extend and state your opening offer based on your RICS valuation.
- The best outcome: They agree to a fair premium, and you move straight to conveyancing.
- The worst outcome: They ignore you or demand an inflated price, at which point you simply proceed to the formal statutory route.
If you do come to terms on a figure, you must use this within your Section 42 Notice. The freeholder won't react well to you changing a pre-agreed figure, as they might think What else will you change along the way.
- Opens informal negotiations with your freeholder.
- Clearly sets out your offer in a beneficial way.
- Instant download.
- Easy to fill in.
- Costs just £2.99 INC VAT.
Step 3: Serve the Section 42 Notice
Whether you have a successful informal offer, or if you just want to get the statutory process underway, your solicitor will serve a statutory Section 42 Notice onto the freeholder. This legally starts your formal claim and fixes your opening offer.
The best strategy is to propose a realistic figure based on your surveyor's valuation and the evidence available. This could be around or just below the midpoint of your surveyor's best-case and worst-case valuation range. Starting unrealistically low risks an immediate dispute and an aggressive counter-notice, while starting too high leaves you nowhere to negotiate downwards.
Worked Example: Pitching your opening Section 42 offer
Suppose your RICS surveyor calculates a best-case premium of £12,500 and a worst-case premium of £15,000. The midpoint is £13,750.
Pitching your Section 42 opening offer around £13,250 to £13,500 establishes a serious, defensible offer while preserving negotiating room before you reach your surveyor's upper ceiling.
Expert Tip: Do not submit a "low-ball" offer
In the landmark Court of Appeal case Cadogan Estates Ltd v Morris [1998], a leaseholder deliberately served a Section 42 Notice proposing a nominal premium of just £100. The court struck out the entire claim as invalid.
The judges established the "elephant test": while it is hard to precisely define what a realistic premium is, you know an unrealistic one when you see it. Your opening offer must be a genuine, bona fide proposal based on market realities. If you use a tactical, artificially low figure to try and force negotiations, the court will likely invalidate your notice, leaving you liable for costs and barred from reapplying for 12 months.
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Can you save money and serve the notice yourself?
While it is legally possible to draft and serve the notice yourself, doing so carries significant financial and legal risk. A Section 42 Notice must contain specific statutory information in a prescribed format and be served on the correct competent landlord.
The 12-Month Penalty for Invalid Notices
If your DIY notice contains technical errors or is served incorrectly, the freeholder can apply to have it struck out. Under the Leasehold Reform, Housing and Urban Development Act 1993, if your claim fails or is deemed invalid, you may be legally barred from serving another notice for 12 months.
During this 12-month period, the cost of extending your lease will likely increase. Furthermore, you will still be legally liable to pay the freeholder's reasonable legal and valuation costs for the failed attempt, and you will have to pay a solicitor to rectify the mess anyway.
Step 4: Handle the Section 45 Counter-Notice
Your Section 42 Notice must specify a statutory deadline for the freeholder to respond, which cannot be less than two months from the date of service. The freeholder responds via a Section 45 Counter-Notice, which either accepts your proposed terms or sets out their own counter-premium.
Can a freeholder refuse to negotiate?
No. Under the Leasehold Reform, Housing and Urban Development Act 1993, a qualifying leaseholder has legal rights to extend their lease. The freeholder cannot ignore the notice or simply refuse to negotiate.
If the freeholder fails to serve a valid Section 45 Counter-Notice by the deadline stated in your Section 42 Notice, your solicitor can apply to the County Court for a Vesting Order. If successful, the court grants the lease extension on the terms and premium you proposed in your original notice, and you can apply to have your legal costs deducted directly from the premium paid.
Step 5: Instruct your surveyor to negotiate
Once the Counter-Notice has been received, negotiations over the premium will generally be led by your RICS surveyor, who can assess and challenge the freeholder's valuation. Your solicitor will continue to advise on the legal process, statutory deadlines and any steps needed to protect your claim.
- Accept the counter-offer: If the freeholder's premium is very close to your surveyor's valuation, it is often cheaper to simply accept it rather than paying your surveyor hourly fees to argue over a few hundred pounds.
- Surveyor negotiation: If the gap is significant (10% higher, or more, than yours), your surveyor will challenge the freeholder's valuation data. Surveyors typically charge between £150 and £300 per hour for negotiation. Always weigh the cost-benefit: spending £1,000 on negotiation fees to reduce the premium by £1,200 is rarely worth the time and stress.
Step 6: Do not be afraid to go to the Tribunal
If the two surveyors cannot reach an agreement within the statutory timeframe of 2 months, your solicitor can escalate the dispute to the First-tier Tribunal (Property Chamber). The Tribunal will review the market evidence from both surveyors and legally impose a final premium. Because Tribunal costs are often unrecoverable, this is always treated as a last resort, but it is a highly effective one.
The main thing to remember is that you can only apply to the First-Tier Tribunal 2 months after the S45 Counter-Notice, but no later than 6 months.
Expert Tip: Sometimes you must play hardball and apply to the Tribunal
If the difference between your surveyor's valuation and the freeholder's demand is substantial (e.g., £3,000 or more), you must be prepared to escalate to the First-tier Tribunal. However, you must adhere strictly to the statutory deadlines. Following the Section 45 Counter-Notice, there is a mandatory two-month negotiation period. Once that passes, you have exactly four months to apply to the Tribunal to determine the premium.
If you miss this critical window, your claim is legally deemed withdrawn. You will not be able to force the extension through on those terms, and you will be barred from serving a new notice for another 12 months.
Submitting your Tribunal application protects your claim and shows the freeholder you are serious. Because each party generally bears its own legal costs at the Tribunal, an inflated premium demand poses a costly risk for the freeholder to defend against. Facing unrecoverable legal fees, many freeholders will suddenly become much more reasonable, and it is highly common for disputes to be settled "on the doorstep" just before the hearing begins.
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Tribunal Case Studies: Leaseholders beating freeholders
Freeholders routinely inflate their opening claims, but the Tribunal will side with a leaseholder if their surveyor presents superior local market evidence. Here are specific examples where the leaseholder won on the premium:
- Westminster (SW1P), April 2023: In a dispute involving a prime Victorian mansion block, the freeholder claimed a premium of £451,470. The Tribunal rejected this and reduced the premium by 42.5%, determining the final figure at £259,566. The Tribunal also resolved the demise of a separate WC in the leaseholder's favour.
- Waltham Forest (E17), August 2019: In a case involving a near-expired lease with fewer than five years remaining, the Tribunal entirely accepted the leaseholder's valuation. The Tribunal adopted the leaseholder's proposed deferment rates of 5.5% for the short term and 5% for the long term, resulting in a premium of £236,988.
- Brent (HA9), April 2025: The primary dispute was over relativity, with the freeholder arguing for the use of standard Gerald Eve graphs (72%) and the leaseholder arguing for local market evidence from the estate (63.93%). The Tribunal preferred the market evidence to the graphs, which significantly impacted the final £89,150 premium.
Where to read more decisions: If you want to research more outcomes, you can search the official GOV.UK Residential Property Tribunal decisions database (filter by "Leasehold Enfranchisement"). You can also find binding precedent cases via the Upper Tribunal (Lands Chamber) or read expert legal summaries on the Leasehold Advisory Service (LEASE) website.
Checklist: How to prepare for a successful lease extension negotiation
Follow these practical steps to ensure you secure the best possible premium and avoid costly legal mistakes.
- Instruct a specialist RICS surveyor: Obtain a professional valuation to establish your best-case and worst-case premium brackets before making any offers.
- Test the waters informally: If appropriate, use our template letter to approach your freeholder with an initial offer based on your surveyor's advice.
- Instruct a lease extension solicitor: Have a legal professional draft and serve your statutory Section 42 Notice to lock in your claim and avoid the 12-month invalidity penalty.
- Track your statutory deadlines: Note the exact dates for the Section 45 Counter-Notice and the First-tier Tribunal application window so your claim is not legally withdrawn.
Secure a fair lease extension premium with SAM Conveyancing
Whether you need an accurate RICS valuation, a Section 42 Notice legally served, or full negotiation support to challenge an unreasonable freeholder, our expert team is here to protect your investment. Let us handle the complexity so you do not overpay.
- Specialist lease extension solicitors
- We can handle statutory or informal extensions.
- Fixed & Competitive Legal fees.
- We guide you through the whole process.
Andrew Boast FMAAT is a qualified accountant, conveyancing specialist and author with over 25 years of experience in the UK property sector. Since beginning his career in 2000 within established SRA and CLC-regulated conveyancing solicitor firms, Andrew has overseen the legal journeys of more than 75,000 clients.
He is the self-published author of the first-time buyer guide: How to Buy a House Without Killing Anyone, and a frequent contributor to mainstream UK media on legislative updates, property law, first-time buyer guides, conveyancing best practices, and stamp duty changes. Andrew specialises in resolving complex title issues, property conflict disputes, and property tax options, streamlining the enquiry process to reduce transaction times and maintaining a client-friendly focus.
Amanda Ambler is a highly accomplished conveyancing specialist with over 15 years of dedicated experience across residential property law, legal compliance, and practice management. Having held senior roles, including Head of Legal Practice and Head of Conveyancing at established UK law firms, Amanda possesses a profound, hands-on understanding of the technical intricacies of the property market.
As the designated Legal Content Reviewer for SAM Conveyancing, Amanda ensures that every guide, legal update, and resource published meets the absolute highest standards of accuracy, regulatory compliance, and factual integrity. Her rigorous review process guarantees that complex property legislation and industry processes are communicated clearly, transparently, and safely for home buyers and sellers alike.
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