For many flat owners, the total cost of a lease extension runs into the low five figures once the premium and professional fees are included. That includes the lease extension premium, your solicitor and surveyor fees, and the freeholder’s legal and valuation costs.
The final amount depends on your property’s value, how many years are left on the lease, and the ground rent you pay. The shorter the lease, the more expensive it usually becomes to extend, which is why timing matters so much.
A lease extension can make a property easier to sell, protect its value, and reduce ground rent to zero in many cases. But it is not a small admin job. It is a legal process with several moving parts, and the premium is usually only one part of the total cost.
This guide focuses on lease extension costs for flats, where the rules and costs can differ from leasehold houses.
Lease Extension Costs Example
Using the above example, here is a breakdown of the costs you’ll have to pay for your lease extension:
| Service | Cost |
|---|---|
| Leasehold Extension Premium [1] | £11,250 |
| Your Valuation Surveyor Fees | £354 |
| Your Solicitor Fees [2] | £900 |
| The Freeholder’s Valuation Surveyor Fees | £354 |
| The Freeholder’s Solicitor Fees [2] | £900 |
| Total | £14,358 |
Lease Extension Costs Explained
Lease extensions are made up of three main fees: the lease extension premium, surveyor fees, and legal fees.
Here’s a breakdown:
Lease Extension Premium
The highest cost involved is the lease extension premium, with the price depending on the following factors:
- Property value: The more valuable your property, the higher the premium.
- Ground rent buyout: Extending your lease drops your ground rent to zero, so part of what you pay compensates the freeholder for losing that income stream.
- Marriage value: This represents the increase in the flat’s value created by the lease extension. Under the current rules, if there are 80 years or fewer left on the lease when notice is served, 50% of that increase is payable to the freeholder as part of the premium.
- Negotiation skills: The initial valuation is just a starting point; there's usually room to negotiate, and a good solicitor can make a real difference to your final bill.
Valuation Surveyor Fees
You’ll need to hire a valuation surveyor with experience in leasehold properties to determine how much the property is worth. This valuation is crucial as it contributes to the premium cost and can be used in negotiations.
Valuation costs vary by provider and property. In the worked example above, surveyor fees come to £734 in total, covering both your valuer and the freeholder’s valuer.
Lease Extension Solicitor Fees
You must hire a solicitor with lease extension experience, as they will handle the legal aspects, including serving notices and ensuring the new lease is registered correctly. You're also responsible for paying for the freeholder's solicitor.
Fees vary, but in the worked example above the combined legal fees come to £2,290.
What is a Lease Extension?
A lease extension is a legal agreement between a freeholder and a leaseholder that extends the lease term. It can increase the property value and make selling easier, but the process can be expensive.
The most important thing to understand is that timing is everything. Wait too long, and you could end up paying thousands more than necessary.
If your lease expires, you do not automatically have to leave the property, but you will have fewer rights and legal protections, so you should get urgent advice well before the lease runs out. Learn more with our guide on what happens when a leasehold expires.
Why Extend Your Leasehold?
Once the lease drops below 80 years, your property's value decreases significantly. With leasehold properties, you’ll own the interior space while the freeholder owns the building and land, so extending the lease will maintain its value.
If you don’t extend the lease, it can result in limited mortgage offers, and buyers may get nervous as they’ll have to foot the bill.
How to Extend Your Lease
- Get a lease extension valuation
- Choose a leasehold solicitor
- Submit an opening offer
- Establish a clear timetable
- Apply to the First-tier Tribunal (if negotiations are unsuccessful)
- Complete the new lease
When Should I Extend My Lease?
In many cases, extending before the lease falls below 80 years is advisable, because costs can rise significantly once there are 80 years or less remaining. A shorter lease can also make a property harder to sell or remortgage.
If your lease is already below 80 years, get specialist advice before deciding whether to extend now or wait. Proposed reforms are intended to remove marriage value, but the government has not confirmed when all changes will be fully implemented, and current rules still apply until further changes take effect.
How Long Does It Take To Extend A Lease?
The lease extension process takes 3 to 12 months on average, depending on the complexity of your case and how quickly you and the freeholder can agree on a price. The new lease must also be registered with the Land Registry.
Where Can I Obtain a Copy of My Lease?
You can ask your mortgage lender if they have a copy of your lease or go to the freeholder directly.
If you are unable to obtain your lease this way, you can pay the Land Registry for a copy.
How Can I Save Money When Extending A Lease?
- Get multiple quotes for conveyancers and surveyors. Fees can vary significantly, and you might save hundreds by shopping around. However, don't choose solely on price; experience and local knowledge matter.
- Consider the informal route first if you have a reasonable freeholder. It can be quicker and cheaper, though be prepared to switch to formal proceedings if needed.
- Understand your financing options. Many people remortgage to fund extensions, releasing equity from their property. Second charge mortgages or bridging loans might work if remortgaging isn't suitable. Factor these costs into your calculations.
- Negotiate effectively. There's usually some room for movement on the premium, but don't expect massive reductions. A good solicitor will know local market conditions and recent tribunal decisions that might support your position.
How to Find a RICS Valuer
Before proceeding with your lease extension application, you must have a RICS Valuation carried out. We can connect you with up to 5 RICS valuers in your local area. Fill out our valuation survey comparison form to compare quotes and save up to 70% on your valuation fees.
Our valuers have passed a strict verification process, which includes being regulated by RICS. This means all jobs adhere to the highest industry standard.
Source
[1] Croydon Council, Hammersmith & Fulham Council, Money Saving Expert
[2] TG Collins
