Everything you need to extend your lease

At Extension.Lease, we deliver specialist lease extension valuations and freehold purchase advice across Kingston upon Thames. With an extensive database of completed lease renewals throughout the borough and up-to-date transactional evidence – from riverside developments such as Charter Quay, Kingston Riverside and Admiralty Buildings, to 1930s mansion blocks in Surbiton and converted period houses in New Malden – we act across a broad mix of property types. We have particular experience advising on ex-local authority and 1980s Right to Buy leasehold estates where many original 99- or 125-year leases are now reducing, including the Cambridge Road Estate, Kingsnympton Park (Norbiton), Bonner Hill Estate, Coombe Road Estate, Acre Road Estate, Hawks Road Estate, King Athelstan Way blocks, the Alpha Road area, the Sunray Estate in Tolworth, Tolworth Towers and surrounding Red Lion Road developments, as well as former council blocks around Ewell Road, Villiers Road and Wellington Road in Surbiton. Our valuations are accurate, defensible and grounded in detailed local comparable evidence drawn from across Kingston, Surbiton, Norbiton, Tolworth, Berrylands and New Malden.
As your lease term reduces, you will usually have the right to extend it by 90 years and reduce your ground rent to nil under the Leasehold Reform, Housing and Urban Development Act 1993. This statutory protection is particularly important as leases approach the 80-year threshold, when marriage value becomes payable and premiums can increase significantly.
We manage the entire statutory lease extension process on your behalf, from initial valuation through to completion and registration of the new lease. Blakes Chartered Surveyors prepare detailed, RICS-compliant valuations based on local Kingston market evidence, while Arcadia Law serve the Section 42 notice, negotiate the premium and complete registration at HM Land Registry. Whether your property is in Kingston town centre, Surbiton, New Malden, Tolworth or Norbiton, early specialist advice can make a substantial difference to both cost and outcome.
We cover Chessington lease extensions for purpose-built flats and maisonettes on Hook Road, Bridge Road, and around Chessington North/South stations. Developments such as Monro Gardens, Cecil Court, and flats above local parades provide regular instructions, along with leasehold maisonettes near Garrison Lane.
Coombe lease extensions often involve high-value apartments and maisonettes rather than detached houses. We frequently work in Coombe Hill Court, The Pines, Coombe Park Mansions, and select flats along Kingston Hill and Coombe Lane West near Kingston Hospital. These properties require precision valuation due to limited local comparables.
Our Kingston upon Thames lease extension work covers riverside apartments in Charter Quay, Kingston Riverside, and Canbury Place, as well as Victorian conversions off Richmond Road. We also value modern flats in Royal Quarter, Osmaston Chase, and blocks along London Road.
Leasehold property in Malden Rushett is limited, but where it exists — such as maisonettes along Leatherhead Road and small conversions near Fairoak Lane — careful analysis of comparable evidence is key.
In Motspur Park, we handle lease extensions for 1930s maisonettes and flats around West Barnes Lane, Seaforth Avenue, and near Motspur Park Station. We also cover ex-local authority blocks on Adela Avenue and flats above the station parade on West Barnes Lane.
New Malden has a mix of leasehold stock, from maisonettes on Burlington Road, Blagdon Road, and High Street to newer apartments in Blagdon House, The Green, and developments off Cambridge Avenue. We also cover conversions along Coombe Road.
Norbiton lease extensions often involve flats in Cambridge House, Cambridge Square, and smaller blocks along Cambridge Road and London Road. Proximity to Kingston Hospital and Kingston University makes this a strong rental market as well as owner-occupied area.
In Surbiton, we regularly work with Art Deco mansion blocks such as Surbiton Court and Holmwood Court, riverside apartments on Portsmouth Road (including River Court) and modern developments near Maple Road and St Andrew’s Square. Fast rail links to Waterloo drive strong demand for leasehold flats here.
Tolworth lease extensions include flats in King Charles Court, Tolworth Tower Apartments, and purpose-built blocks along Ewell Road and Tolworth Rise South. Regeneration and improved transport links are boosting values.
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The cost of extending your lease depends on several factors, including whether your property is under the ownership of Merton Council or a private freeholder.
In addition to the premium and the landlords recoverable costs, you’ll also need to budget for our fixed professional fee of £2,750 + VAT*, which includes all valuation, negotiation, and legal work. This fee is split into two equal instalments, making the payment process straightforward and manageable.
Contact us for a free all inclusive estimate of the total cost of your lease extension, without obligation.
Extending your lease is one of the most important steps you can take to protect your property’s value and mortgageability. If your lease is under 100 years or has a high ground rent, its value may already be affected. Once it falls below 80 years, the cost of extending increases significantly due to marriage value.
Our free, instant Lease Extension Calculator gives you an instant estimate of the premium payable under the Leasehold Reform, Housing and Urban Development Act 1993. It’s a quick, useful guide for leaseholders wanting to understand the likely cost of extending their lease before taking formal advice.
We have a proven track record working with leaseholders in Kingston, including properties under the ownership of the local authority and private freeholders. Whether you live in a purpose-built flat, a converted property, or a large housing development, we’ve handled it all
Everything you need to extend your lease






A statutory lease extension is a legal right that allows leaseholders to extend their lease by 90 years and remove any ground rent. This right is granted under the Leasehold Reform Housing and Urban Development Act 1993, and it applies to almost all leaseholders in the UK, whether your property is owned by a local authority or a private landlord.
The entire lease extension process typically takes between 6 to 12 months. This includes the valuation, notice serving, negotiations with the freeholder, and legal work to register the new lease. However, the exact time can vary depending on factors like the complexity of negotiations or if any issues arise with the property documents.
The premium is the price you pay to extend your lease. It depends on several factors:
Our surveyors will carry out a valuation to calculate a fair premium for your lease extension and negotiate where required to ensure you do not overpay.
If your lease has less than 80 years left, the cost of your lease extension will usually be higher. This is because properties with shorter leases are considered less valuable, and the cost to extend is affected by something called the marriage value, which is the increase in the property's value once the lease is extended. To avoid higher costs, it’s often best to act before your lease drops below 80 years.
Yes, your freeholder may charge fees for their involvement in the lease extension process. These fees typically cover the cost of legal work, including the drafting and registration of the new lease. While these fees are usually similar to the costs you incur, they can sometimes be higher depending on the freeholder's approach.