Everything you need to extend your lease

At Extension.Lease, we specialise in lease extension valuations and freehold purchase advice throughout the London Borough of Tower Hamlets, covering Canary Wharf, Limehouse, Wapping, Shadwell, Stepney, Bethnal Green, Bow, Poplar, the Isle of Dogs, Whitechapel and Mile End. The borough’s property landscape is highly varied – from Docklands and riverside apartments to Victorian conversions and mid-century purpose-built blocks – and our advice is built on detailed local market knowledge supported by carefully analysed comparable evidence.
We regularly represent leaseholders within former local authority estates where many flats were sold under the 1980s Right to Buy programme and are now reaching important lease length milestones. Our experience includes developments such as the Ocean Estate, Teviot Estate and Lansbury Estate in Poplar; the Brownfield Estate in Bow; Cranbrook Estate and Dorset Estate in Bethnal Green; Holland Estate and Chicksand Estate in Whitechapel; the Wapping Estate; Barley Mow Estate in Limehouse; and the Samuda and Barkantine estates on the Isle of Dogs. These predominantly 1960s–1980s purpose-built schemes require a valuation methodology that reflects their specific tenure structures, estate characteristics and sub-market positioning within Tower Hamlets.
Where you are seeking a statutory lease extension under the Leasehold Reform, Housing and Urban Development Act 1993 (Section 42 Notice), accurate premium assessment is critical – particularly as leases approach or fall below 80 years unexpired, when marriage value becomes payable. We prepare detailed, tribunal-ready valuations, advise on relativity and marriage value, and negotiate robustly with Tower Hamlets Council, housing associations and private freeholders. Every case is handled strategically to ensure the statutory process is managed efficiently and that your financial position is fully protected.
We handle lease extensions for landmark developments including Pan Peninsula, Baltimore Wharf, New Providence Wharf, and Ontario Tower. We also act on ex-local authority leaseholds in the Samuda Estate and Barkantine Estate on the Isle of Dogs.
In Wapping, we work with leaseholders in prestigious warehouse conversions such as Gun Wharf, Tobacco Dock Apartments, and New Crane Wharf, as well as riverside schemes like St. Katharine Docks. Ex-local authority stock includes Wapping Estate.
Bow lease extensions include flats in the Bow Quarter (a converted Victorian match factory), ex-local authority estates such as Tredegar Estate and Lefevre Walk Estate, and modern private developments along Fairfield Road.
Our Bethnal Green work covers mansion blocks like Thornfield House, modern apartments in Bethnal Green Gardens, and ex-local authority stock within the Boundary Estate and Cranbrook Estate.
In Stepney, we act on lease extensions for flats in Stepney City Apartments, Stepney Green Court, and ex-local authority estates such as the Ocean Estate and Stepney Green Estate.
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The cost of extending your lease depends on several factors, including whether your property is under the ownership of Tower Hamlets 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 Tower Hamlets, 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.