Welcome to our information site. The site is hosted by award winning LBB Chartered Surveyors and is an information site for our current and future clients aimed at helping you with your Lease Extension.

Our calculator is designed to assist you. It does not provide formal valuation advice but will give you an indication of the premium you might need to pay.

We look forward to aiding you, so please feel free to contact us:

What is a lease extension?

The Leasehold Reform Housing and Urban Development Act 1993 (as amended) entitles a tenant, subject to 2 years registered ownership, to claim a 90-year lease extension to the original lease term.

The new lease will have a peppercorn ground rent throughout that new extended term.

If the lease has an unexpired term of more than 80 years any marriage value is ignored.

The date of valuation is the date of receipt of the Section 42 notice.

An unrealistic premium offer can render a notice invalid. This is as the tenant’s notice is considered by the courts to be a contractual offer.

Following receipt of a Section 42 notice, a landlord has to serve counter-notice within two months, or the date stated within the notice, if later.

The courts have stated that a landlord’s counter-notice (under Section 45) is not contractual, therefore does not need to state a realistic premium figure. Failure for a landlord to respond to a tenant’s notice in time will normally oblige the landlord, subject to a vesting order from the court, to accept both the premium proposal (if realistic) and any proposed amendments to the lease.

The basis of valuation of the lease extension premium is subject to the following statutory formula, which is the sum of the following:

  • The diminution of value in the landlord’s interest in the flat [reduction in value],
  • The landlord’s share of the marriage value,
  • Any other amount of compensation payable.

What is a Section 42 Notice?

This is the notice of claim. It is a formal notice that states the identity of the parties to any lease extension, the basis of qualification, the amount initially offered and the date by which the landlord must reply.

In some cases, there is more than one landlord, for example where there is a head lessee or intermediate lessee.

Whilst our calculator will let you have an indication of the level of premium, it will not apportion premiums, but our surveyors would be delighted to help you.

What is diminution in the value of the landlord’s interest?

This is the difference between value of the landlord’s interest before the lease extension and the value of their interest after the lease extension.

Prior to a lease extension, the landlord will probably have a ground rent income payable the lease term. He will also receive the flat back at the end of that lease.

As such, their interest before the lease extension is made up of the sum of:

  • The capitalised value of the rental income payable under the existing lease;
  • Plus, the present value to the landlord of receiving the flat at the end of the existing lease.

After the lease extension, the landlord (will in nearly all instances) have no ground rent income from the lease. He will also receive the flat back 90 years later than the end of the original lease. So, the amount deducted is:

  • The present value to the landlord of receiving the flat at the end of the extended lease.

This loss is normally all that is paid for a lease extension if your current lease has more than 80 years remaining.

If there is less than 80 years remaining, then marriage value will be payable. The landlord will receive 50% of this marriage value.

What is marriage value?

Marriage value is specifically defined in the legislation but essentially it is the profit released from marrying the interests of the parties after and comparing it to the amount of the interest before. On occasions it may be small but as the length of your lease reduces the difference becomes bigger. It is basically:

The aggregate of:

  • the value of the interest of the tenant under his new lease; and
  • the interest of the landlord(s) after the grant of the new lease

Compared with the aggregate of:

  • the value of the interest of the tenant under his existing lease; and
  • the interest of the landlord(s) prior to the grant of the new lease

Where marriage value is applicable, the tenant is required to compensate the landlord for half (50%) of the marriage value (or profit derived from the lease extension).

How is marriage value calculated?

A longer lease of a property will be more valuable than a shorter lease of a property. On this basis, the freehold would represent the most valuable asset. If the freehold represents 100% of value, valuer will often refer to the relative value of the lease – or relativity.

What is Relativity?

Relativity is an expression used to measure the difference in price between a leasehold value and that of an effective freehold. It is often expressed as a percentage.

Historically this was established by negotiation, “graphs”, tribunal, or other determinations.

Graphs of Relativity are still used, but the tribunals will prefer market evidence of sales of short leases. The graph below is the graph used in the calculations on this website.

It shows the how the value of a lease reduces as the lease term reduces. It is not a definitive graph but illustrative in allowing us to help you.

Your results explained

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There are numerous variables in the valuation that develops the premium range.

Each variable will have a margin for negotiation. This is why it is necessary to obtain proper professional advice before embarking on a lease extension.

The main variables are:

  • Capitalisation rate;
  • Deferment rate;
  • Lease length / Relativity;
  • The "no Act world"; and
  • Tenant's improvements.

Capitalisation rate

This rate is used to calculate the Years Purchase multiplier to generate the present-day value of the ground rent income through the lease. The rate will vary depending on the level of rent, the frequency of review and the amount of any increase.

The calculator does not account for reviews but we can assist you with this calculation.

Deferment (or discount) rate

Prior to Sportelli this varied throughout the country and throughout central London. This case introduced the concept of a generic (nationwide and property-wide) rate of 5%.

Potentially if your property has specific issues or it is outside of London, it may be possible to adjust this rate. The calculator only works off 5%: The higher rate, the lower the premium.

Our expert surveyors can assist you with determining the appropriate rate. This may change if the lease flats below 20 years.

Lease length / Relativity:

As noted earlier, the calculator makes assumptions based on graphs. Our expert surveyors will also consider sales in the marketplace when valuing your property. This may be advantageous to you.

The value of the short lease of the flat and the "No-Act" world assumption.

The 1993 Act requires an assumption says that you have no right to buy the lease extension. This is often termed the "no Act world" assumption.

In the market you can extend your lease because of the 1993 Act. Therefore, it is necessary to consider how much of a discount there needs to be to reflect this right.

The longer the lease the less this discount might be. For illustration, this may be:

By 2.5%-5% for a 60-80 year plus lease;

By 5-10% for a lease between 45 and 60 years;

By 10-15% for say 30 to 45 years lease; and

By 15-35% for shorter leases.

Tenant's Improvements

The Act allows for tenant’s improvements to be disregarded. If there are works, such as altering the layout or adding en suite bathrooms, then maybe it is necessary to reduce the value of the property.

If you have undertaken works of improvement, it will be essential to have a formal valuation of your property. Again, our valuers will be able to help you.

About LBB Chartered Surveyors

LBB Chartered Surveyors is a highly regarded, award winning and well-established firm, having been in practice since 1994. We work throughout the UK, however, being situated near Fleet Street, we are ideally positioned to serve Central London and the South East.

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