Kensington & Chelsea Lease Extension Solicitors & Surveyors

Everything you need to extend your lease

No panels. No middlemen. Just RICS surveyors and SRA-regulated solicitors handling the whole matter for you.

Kensington and Chelsea Council

 

At Extension.Lease, we provide specialist lease extension valuations in Kensington & Chelsea together with expert advice on freehold purchase and collective enfranchisement across the Royal Borough, including Kensington, Chelsea, South Kensington, Earl’s Court, West Brompton and North Kensington. We act for leaseholders across a diverse range of property types – from prestigious red-brick mansion blocks in Kensington and Chelsea, to white stucco conversions in South Kensington, portered purpose-built blocks in Earl’s Court, modern riverside apartments at Chelsea Harbour and Imperial Wharf, and ex-local authority estates where many leases were granted during the 1980s Right to Buy era. This includes properties on estates and developments such as Lancaster West Estate, Silchester Estate, Trellick Tower, Edenham Way, Henry Dickens Court, Worlds End Estate, Cremorne Estate, Warwick Road Estate, Elm Park Gardens (RBKC-owned blocks), Campden Estate, Sutton Estate (Chelsea), Dalgarno Gardens, Hazlewood Tower, and the Notting Barns area surrounding Ladbroke Grove.

 

Our lease extension valuations in Kensington & Chelsea are prepared with detailed analysis of lease length, ground rent structure, relativity and marriage value to ensure premiums are calculated accurately under the Leasehold Reform, Housing and Urban Development Act 1993. We provide Section 42 valuation reports, premium negotiation strategy and tribunal-ready advice where required, acting against major landed estates such as Cadogan, Grosvenor, de Walden and the Ladbroke Estate, alongside institutional freeholders, housing associations and the local authority. Every valuation is supported by robust, up-to-date comparable evidence drawn from across Kensington, Chelsea and North Kensington, ensuring premiums are accurate, defensible and fully reflective of prime central London and RBKC-specific market conditions.

Areas We Cover in Kensington & Chelsea

Areas We Cover in Kensington & Chelsea

South Kensington (SW7) — Prime Mansion Blocks & Conversions

We handle lease extensions for mansion blocks such as Onslow Gardens Mansions, Malvern Court, and Pelham Court, along with period conversions on Cranley Gardens and Queen’s Gate. Many flats here command high premiums, requiring precision valuation.

Chelsea (SW3 / SW10) — Riverside & Period Stock

In Chelsea, we act on lease extensions for riverside developments like Chelsea Harbour, Carlyle Court, and Grosvenor Waterside, as well as mansion blocks such as Cheyne Gardens and Elm Park Mansions. The area’s premium market demands a detailed and evidence-led approach.

Kensington (W8) — Luxury Leasehold Properties

Notting Hill lease extensions include period conversions around Ladbroke Square and Pembridge Villas, as well as mansion blocks like Arundel Court and Tavistock Court. Ex-local authority stock includes parts of the Trellick Tower complex on the borough’s northern edge.

Notting Hill (W11) — Iconic Conversions & Purpose-Built Flats

In Earl’s Court, we work on flats in mansion blocks such as Bramham Gardens Mansions and Nevern Mansions, as well as ex-local authority developments on the West Kensington Estate. Regeneration plans here may influence future values.

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Or request a free initial consultation for your Kensington & Chelsea lease extension or freehold purchase.

What’s Involved in the Lease Extension Process?

The lease extension process involves several stages. We handle everything so you can relax while we take care of the details.
Stage 1: Valuation and Preparation
Our expert team at Blakes Chartered Surveyors will assess your property, taking into account comparable properties and your lease details to calculate the premium for your lease extension.
Stage 2: Notice and Negotiation
Once we have a clear idea of the extension premium, we’ll serve the Section 42 Notice to your freeholder, officially starting the process. Arcadia Law will manage the service of this notice and any legal correspondence. If necessary, Blakes Chartered Surveyors will negotiate with your freeholder to secure a fair price.
Stage 3: Conveyancing and Completion
Once the terms are agreed, Arcadia Law will handle all the legal paperwork and ensure your lease extension is registered with the Land Registry. You’ll then have peace of mind knowing your lease has been extended by 90 years, and the ground rent has been removed.

How the Statutory Lease Extension Process Works

How Much Does a Lease Extension Cost?

The cost of extending your lease depends on several factors, including whether your property is under the ownership of Kensington & Chelsea Council or a private freeholder. 

  • Kensington & Chelsea Council properties tend to have lower costs, as they generally have long leases (125 years) with minimal ground rents (e.g., £10 per year). 
  • Private freeholders may require a higher premium, especially if your lease has under 80 years remaining or you are paying rising ground rent. 

In addition to the premium and the landlords recoverable costsyou’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. 

Lease Extension Calculator

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.

Extensive Experience Across Kensington & Chelsea

We have a proven track record working with leaseholders in Kensington & Chelsea, 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

Why Kensington & Chelsea Leaseholders Choose extension.lease

  • Local insight:We know exactly where leasehold flats are located in every neighbourhood.
  • Evidence-led valuations:Comparable sales, relativity, and market nuance clearly presented.
  • End-to-end support:Valuation by Blakes Chartered Surveyors; notices and conveyancing by Arcadia Law.
  • Transparent fees:Fixed-fee quotes, no surprises.

Recent Cases We've Handled in This Area

Everything you need to extend your lease

Chelsea Reach Tower I Chelsea
SW10
Statutory Lease Extension
Lexham Gardens I Earls Court
W8
Statutory Lease Extension
Thorndike Close I Fulham
SW10
Statutory Lease Extension
Burleigh House I Beaufort Street
SW3
Statutory Lease Extension
Old Church Street I Chelsea
SW3
Statutory Lease Extension
Sydney Street I Chelsea
SW3
Statutory Lease Extension

Get Started with Your Lease Extension in Kensington & Chelsea

Take the first step towards extending your lease with confidence. Book a call today with our expert team or get in touch to learn more about how we can help you.

Frequently Asked Questions

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:

  • The value of your property with a long lease.
  • The number of years remaining on your current lease.
  • The amount of ground rent you pay and how it increases over time.

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.