Lease Extension Valuation

Lease Extension Valuation

A RICS Red Book valuation calculating the premium payable to extend a residential lease under the Leasehold Reform, Housing and Urban Development Act 1993 — providing the capitalised ground rent, reversion value and marriage value calculations required for both statutory and informal lease extensions.

If you own a leasehold flat or house and your lease is approaching 80 years — or has already fallen below — extending your lease is one of the most important financial decisions you will make as a leaseholder. As the unexpired term shortens (particularly below 80 years), the property's value declines and the premium to extend it rises — accelerated by the addition of 'marriage value'. Our RICS Registered Valuers calculate the premium payable using the statutory formula, advise on whether the statutory or informal route is more appropriate, and produce a Red Book compliant report for your solicitor, for negotiation with the freeholder, or for an application to the First-tier Tribunal (Property Chamber).

Lease Extension Valuation Report

RICS Red Book compliant premium calculation
Prepared by an RICS Registered Valuer
Capitalised ground rent and reversion value calculations
Marriage value assessment for leases below 80 years
Covers statutory Section 42 and informal negotiation routes
Accredited & Regulated

Our Home Surveyor & Property Valuer Accreditation & Professional Membership

Our Lease Extension Valuations are carried out by qualified surveyors who belong to the professional bodies that set UK property standards. Every report is prepared to recognised guidance and is completely independent, so you can rely on the findings when you buy, sell or value a home.

Overview

What Is a Lease Extension Valuation?

A lease extension valuation is a specialist valuation that calculates the premium (the price) a leaseholder must pay to the freeholder to extend the lease of their residential property. Under the Leasehold Reform, Housing and Urban Development Act 1993, a qualifying leaseholder of a flat has the right to extend their lease by 90 years on top of the unexpired term, at a peppercorn (nil) ground rent. The premium is calculated using a statutory formula set out in Schedule 13 of the Act, based on three elements: (1) the capitalised value of the ground rent income the freeholder will lose over the remaining term; (2) the reversion value — the value of the freeholder's right to possession of the property at the end of the lease, discounted to today's money; and (3) where the unexpired term is below 80 years, marriage value — the increase in the property's value as a result of the lease extension, of which the freeholder is entitled to 50 percent. Our RICS Registered Valuers calculate each element, arrive at the total premium, and provide a comprehensive, Red Book compliant report suitable for negotiation, solicitor instruction or tribunal proceedings.

What It Covers

  • Calculation of the premium payable for a statutory lease extension (90 years, peppercorn rent)
  • Capitalised ground rent — the present value of the ground rent the freeholder will lose
  • Reversion value — the present value of the freeholder's right to possession at lease expiry
  • Marriage value — the share of the increase in property value attributable to the extension (for leases below 80 years)
  • Assessment of the property's current market value (existing lease) and extended value (new lease)
  • Capitalisation rate and deferment rate analysis and justification
  • RICS Red Book compliant report suitable for the Section 42 process
  • Advice on whether the statutory or informal route is appropriate in your circumstances

What It Does Not Cover

  • Confirmation of your eligibility to exercise the right to extend — your solicitor will advise on qualification criteria under the 1993 Act
  • The service of a Section 42 Notice — this is a formal legal process carried out by your solicitor
  • Representation at the First-tier Tribunal — though our report is prepared with tribunal proceedings in mind and the valuer can act as an expert witness
  • Negotiation with the freeholder — we provide the valuation; the negotiation is typically handled by your solicitor or a specialist leasehold valuer
  • A structural survey or building defect inspection — this is a separate service
When Required

When Is a Lease Extension Valuation Required?

A lease extension valuation is required whenever a leaseholder wishes to extend their lease — whether through the statutory process or informal negotiation.

Suitable For

  • Flat leaseholders with a lease approaching or below 80 years — the marriage value threshold where premiums increase sharply
  • Flat leaseholders wishing to extend under the statutory process — service of a Section 42 Notice requires a formal premium calculation
  • Flat leaseholders negotiating an informal (voluntary) extension directly with the freeholder
  • House leaseholders under the Leasehold Reform Act 1967 (enfranchisement) — though the valuation methodology differs
  • Buyers considering purchasing a short-lease property and needing to understand the extension cost before committing
  • Sellers whose lease is short and who wish to extend before (or in parallel with) a sale to maximise the property's marketability
  • Leaseholders where the freeholder has proposed a premium and the leaseholder needs an independent assessment of whether it is reasonable

Not Suitable For

  • Freehold properties — there is no lease to extend
  • Leaseholders who do not meet the qualifying criteria under the 1993 Act (e.g. the lease was not originally for more than 21 years, or the leaseholder has owned for less than 2 years) — though an informal extension may still be possible

Not sure which route is right for you? Speak to a surveyor for expert advice on the statutory and informal lease extension options.

What Is Included

What Is Included in a Lease Extension Valuation?

Our lease extension valuations provide the comprehensive premium calculation needed to extend your lease with confidence.

RICS Red Book Compliant

Prepared in strict accordance with the RICS Valuation — Global Standards (the 'Red Book') and RICS professional guidance on leasehold reform valuations.

Prepared by an RICS Registered Valuer

Your valuation is personally prepared and signed by an RICS Registered Valuer — a chartered surveyor with specific expertise in leasehold enfranchisement and lease extension valuations.

Capitalised Ground Rent Calculation

We calculate the present value of the ground rent the freeholder will receive over the remaining term of the existing lease — applying an appropriate capitalisation rate (yield) justified by comparable market evidence.

Reversion Value Calculation

We assess the value of the freeholder's right to take back possession of the property at the end of the lease — deferred to today's money using an appropriate deferment rate (discount rate).

Marriage Value Assessment

For leases with less than 80 years unexpired, we calculate the marriage value — the difference between the aggregate of the leaseholder's and freeholder's interests before and after the extension. The freeholder is entitled to 50% of this under the 1993 Act.

Existing and Extended Value Assessment

We assess the property's market value on the existing lease (the current value) and on the extended lease (the value after adding 90 years at a peppercorn rent). The difference drives the marriage value calculation.

Statutory vs. Informal Route Advice

We advise on whether the statutory route (Section 42 Notice under the 1993 Act) or the informal (voluntary negotiation) route is more appropriate for your circumstances — based on the unexpired term, the freeholder's attitude, and the costs and timescales of each route.

Fixed Pricing

We provide a fixed-price quote within 24 hours of your enquiry. The price we quote is the price you pay — no hidden extras and no VAT added to our fees. We understand that lease extension is already an expensive process and we want you to have clarity on our costs from the outset.

Process

How the Lease Extension Valuation Process Works

From enquiry to premium calculation — a specialist process designed to support your lease extension.

1

Get a Quote

Tell us the property address, the unexpired lease term, the current ground rent, and the route you are considering (statutory or informal). We respond within 24 hours with a fixed-price quote.

2

Inspect and Assess

The RICS Registered Valuer inspects the property to assess its condition, accommodation and specification. We note all factors affecting value — including the building's condition, any major works planned, and the local market.

3

Calculate the Premium

We apply the statutory formula (or the agreed methodology for an informal extension) — capitalising the ground rent, deferring the reversion and assessing marriage value where applicable.

4

Receive Your Report

Your Red Book compliant valuation report is delivered within 5–10 working days — ready for your solicitor to serve a Section 42 Notice, for negotiation with the freeholder, or for tribunal proceedings.

What We Need From You

  • The full address of the leasehold property
  • A copy of the lease (if available) — or at minimum the original lease term, the unexpired term and the current ground rent
  • The date you acquired the property (for the 2-year ownership qualifying test under the 1993 Act)
  • Whether you are considering the statutory route (Section 42 Notice) or negotiating informally with the freeholder
  • Any correspondence from the freeholder — particularly if they have proposed a premium
  • Any known major works or service charge issues affecting the building
Methodology

Our Valuation Methodology

Lease extension valuation is a specialist discipline — our methodology follows the statutory framework and established valuation principles.

The Statutory Formula (Schedule 13, 1993 Act)

The premium for a statutory lease extension is calculated as the sum of three elements. First, the diminution in the freeholder's interest — the capitalised ground rent (the present value of the ground rent the freeholder will lose over the remaining term) plus the reversion (the present value of the freeholder's right to possession at lease expiry). Second, the freeholder's share of the marriage value (50% of the increase in property value resulting from the extension — applicable only where the unexpired term is below 80 years). Third, any compensation for other loss (typically negligible for residential flats). Our report sets out each element and the total premium clearly.

Capitalisation Rate

The capitalisation rate is the yield used to convert the ground rent income stream into a present-day lump sum. It reflects the risk and return characteristics of ground rent income — typically ranging from 5% to 8% depending on the security of the income, the likelihood of review provisions, and prevailing market conditions. We determine the capitalisation rate by reference to comparable transactions, market evidence and RICS guidance — and we set out our reasoning in the report.

Deferment Rate

The deferment rate is the discount rate used to calculate the present value of the freeholder's right to take back possession of the property at lease expiry. Following the Sportelli decision (Cadogan v Sportelli [2007]), the generally accepted deferment rate for residential property in most of England is 5% (4.75% for Prime Central London), though the actual rate may be adjusted for property-specific factors. We apply the appropriate deferment rate based on the property's location, type and market conditions — with full justification in the report.

Marriage Value and the 80-Year Threshold

Marriage value is the increase in the aggregate value of the leaseholder's and freeholder's interests resulting from the lease extension. It represents the 'profit' unlocked by the transaction. Below 80 years unexpired, 50% of this marriage value is payable to the freeholder under the 1993 Act — and this can add very significantly to the premium. Above 80 years, marriage value is zero (or negligible). This is why leaseholders should not delay extending when the unexpired term approaches 80 years — the cost increases sharply at that threshold. We model the marriage value precisely, using comparable evidence for both the existing-lease value and the extended-lease value.

FAQs

Lease Extension Valuation Questions

What is marriage value and why does it matter?

Marriage value is the increase in property value resulting from the lease extension — the difference between the value of the flat with the existing short lease and its value with the extended lease. Under the 1993 Act, where the unexpired term is below 80 years, the freeholder is entitled to 50% of this marriage value. This can add tens of thousands of pounds (or more) to the premium. Above 80 years, marriage value is zero. This is the single most important reason not to delay extending your lease when it approaches — or falls below — 80 years: you will pay significantly more. For example, a flat worth GBP 300,000 with 82 years on the lease might command a premium of, say, GBP 8,000-GBP 12,000. The same flat with 78 years remaining might command a premium of GBP 15,000-GBP 20,000 or more — the additional amount being marriage value.

What is the difference between the statutory and the informal route?

The statutory route (Section 42 Notice under the 1993 Act) is a formal legal process that gives you the right to a 90-year extension at a peppercorn rent, on the terms set out in the Act. The freeholder cannot refuse (provided you qualify), and if you cannot agree on the premium, the First-tier Tribunal (Property Chamber) will determine it. The downside is that the process can be slow (6-12 months), you are liable for both your own and the freeholder's reasonable legal and valuation costs, and a premium determined by the tribunal may be higher (or lower) than expected. The informal route is a voluntary negotiation with the freeholder — it can be quicker and cheaper, but the freeholder is not obliged to agree, can set their own terms (including a new ground rent), and there is no tribunal fallback. We can advise on which route is more appropriate in your circumstances.

How much does it cost to extend a lease?

The total cost comprises three elements: (1) the premium paid to the freeholder (our valuation calculates this); (2) your own legal and valuation costs; and (3) under the statutory route, the freeholder's reasonable legal and valuation costs, which you are liable to pay. The premium varies significantly depending on the unexpired term, the ground rent, the property's value and whether marriage value applies. The shorter the lease, the higher the premium. The higher the ground rent, the higher the premium. The more valuable the property, the higher the premium. We can provide a realistic estimate of the premium at the quote stage so you can budget before committing to the process.

Do I need a valuation before serving a Section 42 Notice?

Yes — a Section 42 Notice must include the premium you propose to pay. That figure must be based on a professional valuation, because if the matter proceeds to the tribunal and your proposed premium is found to be unrealistic, the tribunal may take that into account on costs. The notice figure is your opening negotiating position — it should be realistic, evidence-based and supported by professional calculations. Our report provides the premium calculation you need for the Section 42 Notice, including the capitalised ground rent, reversion value and marriage value (if applicable).

Can I extend my lease if I have owned the flat for less than 2 years?

The statutory right to a lease extension under the 1993 Act requires that you have been the registered proprietor of the lease for at least 2 years at the date of the Section 42 Notice. If you have owned for less than 2 years, you cannot (yet) use the statutory route. However, you can still negotiate an informal extension with the freeholder — the freeholder may agree to extend voluntarily. Some sellers also start the statutory process before selling and assign the benefit of the notice to the buyer on completion — your solicitor can advise on this. We can value the premium for either route.

What happens if the freeholder and I cannot agree on the premium?

Under the statutory route, if you cannot agree on the premium within the statutory timescales (typically 2-6 months from the date of the Section 42 Notice), either party can apply to the First-tier Tribunal (Property Chamber) for a determination. The tribunal will consider the valuation evidence from both sides and determine the appropriate premium. The tribunal's decision is binding (subject to appeal on a point of law). Our report is prepared with tribunal proceedings in mind — the reasoning, comparable evidence and calculations are set out clearly so the tribunal can follow them. If you proceed informally and cannot agree, you have no right to apply to the tribunal, but you can serve a Section 42 Notice to trigger the statutory process (assuming you qualify).

How long does the lease extension process take?

Under the statutory route, the process from service of the Section 42 Notice to completion typically takes 6-12 months, depending on whether the premium is agreed or determined by the tribunal. An informal extension can be quicker — potentially 2-4 months if negotiations proceed smoothly. In either case, the valuation itself (our report) takes 5-10 working days from instruction. We recommend starting early — particularly if your lease is approaching the 80-year threshold — as delays can be costly.

How much does a lease extension valuation cost?

The cost depends on the property type, value, location and the complexity of the lease. We provide a fixed-price quote within 24 hours of your enquiry — the price we quote is the price you pay, with no hidden extras and no VAT added to our fees. The cost of the valuation is a small fraction of the premium you will pay for the lease extension — and an accurate, professionally prepared valuation can save you far more than its cost by ensuring the premium is correctly calculated and you are not overpaying. We cover all seven counties: Bedfordshire, Buckinghamshire, Cambridgeshire, Hertfordshire, Northamptonshire, Greater London and Oxfordshire.

Get a Lease Extension Valuation Quote

Free, no-obligation quote within 24 hours. RICS Red Book compliant premium calculation for statutory and informal lease extensions — do not let your lease slip below 80 years.