A lease extension valuation determines how much a leaseholder must pay in order for their freeholder to add years to a lease. This is carried out by a RICS-qualified surveyor and is a necessary step before you are able to begin a formal extension process. This can be done by the statutory route under the Leasehold Reform, Housing and Urban Development Act 1993 or by negotiating a voluntary agreement. Understanding how a lease extension valuation works can save you thousands of pounds. Below, we take a closer look at the lease extension valuation process.
What is a lease extension valuation?
A lease extension valuation is an assessment implemented by a chartered surveyor. This specialist process calculates the “premium” which refers to the lump sum you pay your freeholder in exchange for additional years added to your lease. It is important to note that this is not the same as a standard property valuation or estate agent market appraisal. A market appraisal valuation is designed to estimate what your home may sell on the open market whereas a lease extension uses a legal formula from the 1993 Act. It requires a detailed analysis of comparable sales, ground rent schedules and lease terms. Due to the specialised nature of the valuation, you need to work with a RICS-registered valuer.
How the premium is calculated
The premium that you will pay your freeholder is based on three specific components.
- Loss of ground rent: Currently, your freeholder receives annual ground rent from you. When a lease is extended, this drops to effectively zero. Therefore, part of the premium compensates the freeholder for the present value of all future ground rent payments they are giving up. If you have a high ground rent or one that increases over time (some leases double every 10 or 25 years), this figure is likely to be larger.
- Reversion: At the end of your current lease, the freeholder regains full ownership of the property. A 90-year extension under the statutory route delays that event significantly, and the freeholder receives compensation for the delay. Surveyors calculate this by discounting the property's full market value over the extended term at a "deferment rate" which is currently 5% for flats in most of England and Wales, following the Sportelli decision.
- Marriage value: Marriage value applies only when the lease has dropped below 80 years. Once this occurs, extending the lease produces a large jump in the flat's market value, and the freeholder is entitled to half of that uplift. The cost can increase significantly once a lease falls below 80 years, although the exact impact depends on the property's value, location and lease terms.
A note on reform: The Leasehold and Freehold Reform Act 2024 intends to abolish marriage value altogether. Royal Assent was granted in May 2024, but the relevant provisions have not come into force. Until they do, the existing rules still apply.
How much does a lease extension valuation cost?
Surveyor fees range from around £400 up to over £1,400, depending on the property and the complexity of the case. A few firms offer fixed fees, but many charge by the hour or on the basis of the property's value. It is important to note that under the 1993 Act, you pay both your own professional fees and the freeholder's reasonable valuation and legal costs. You also have no choice over who acts for the freeholder, so fees may be higher than expected. In summary, you need to budget for your surveyor, your solicitor, the freeholder's costs as well as the premium itself.
Does extending a lease add value to your property?
In almost all cases, yes. The longer the lease, the more the flat will be worth. In most cases, the increase outweighs the cost of the extension, particularly if you act while the lease is still above 80 years. Short leases also cause practical difficulties. Many mortgage lenders restrict lending on shorter leases, with requirements varying by lender and product. As the lease length falls, the pool of available mortgage finance tends to reduce. If you are around the 83-year mark, begin the process sooner rather than later. Valuation, negotiation, and legal completion can take anywhere from four to twelve months.
How to choose a lease extension valuation surveyor
Not all surveyors have the right background for this work. With this in mind, consider RICS membership, enfranchisement specialism, local knowledge, negotiation ability, fixed fees, and leaseholder-only work. RICS-registered valuers follow professional standards that carry weight at tribunal. The surveyor needs to be current on case law, deferment rates, and relativity data. Your valuer must also be able to source recent comparable sales in your area and have a record of settling cases at fair figures. Fixed fees can avoid the tension between settling quickly and fighting for a better number, while a valuer who works only for leaseholders may avoid potential conflicts associated with acting for freeholders.
From valuation to completion: what actually happens
The formal procedure begins when your solicitor serves a Section 42 notice on the freeholder, setting out your claim to a lease extension and proposing a premium based on the valuation report. The freeholder then has two months to respond with a counter-notice. Their figure will almost certainly be higher than yours. This is where the negotiations begin. The two surveyors exchange their calculations, discuss the comparable evidence, and work towards a figure both sides can accept. Most cases settle this way. If not, either party can refer the dispute to the First Tier Tribunal (Property Chamber), which makes a binding determination. Once a premium is agreed upon, the solicitor draws up the lease extension deed. Both sides sign, and the deed is registered at the Land Registry. The whole process, from valuation through to completion, usually takes between four and twelve months.
Frequently Asked Questions
Do you need a valuation for a lease extension?
Yes. Whether you pursue a statutory extension or negotiate voluntarily with your freeholder, an independent valuation from a RICS-qualified surveyor is the first step. Without one, you have no accurate starting point for negotiation, and you could end up paying over the odds.
Does extending a lease add value to a property?
It does. A longer lease increases the property's market value and makes it easier to mortgage and sell. The value gain is most pronounced when extending from below the 80-year marriage value threshold. In most cases, the increase in value outweighs the cost of the extension.
What is the valuation date for a lease extension?
The valuation date is the date on which the Section 42 notice is served on the freeholder. All calculations including property value, ground rent, remaining term, and marriage value, are assessed as at that date. Keep the gap between commissioning the valuation and serving the notice as short as possible.
How long does a lease extension valuation take?
The surveyor's report usually takes five to ten working days. The full process from valuation through notice, negotiation, and legal completion runs between four and twelve months, depending on the freeholder's responsiveness and whether the case reaches tribunal.
Considering extending your lease?
Knowing the current market value of your property is a useful first step. Our local property team at John D Wood & Co. can provide a complimentary market appraisal valuation so you know where you stand. With offices across London and the South East, we are well placed to guide you on your next move. Book a free property valuation
