Westminster 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.

 

At Extension.Lease, we provide specialist lease extension valuations in the City of Westminster together with expert advice on freehold purchase and collective enfranchisement across the borough, including Mayfair, Marylebone, St John’s Wood, Paddington, Bayswater, Pimlico, Westminster and Victoria. We act for leaseholders across a wide range of property types – from prime Mayfair and Marylebone mansion blocks and Nash terraces in Regent’s Park, to stucco-fronted conversions in Bayswater, portered blocks in St John’s Wood, modern developments in Paddington Basin, 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 the Churchill Gardens Estate in Pimlico, Lisson Green Estate in Marylebone, Mozart Estate in Queen’s Park, Warwick Estate in Maida Vale, Amberley Estate in Paddington, Hallfield Estate in Bayswater, and blocks around the Ebury Bridge Estate near Victoria.

 

Our lease extension valuations in Westminster are prepared with detailed analysis of lease length, ground rent structure, relativity and marriage value to ensure statutory 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 the Grosvenor, Portman, Howard de Walden and Crown Estates, alongside institutional freeholders, housing associations and Westminster City Council. Every valuation is supported by robust, up-to-date comparable evidence drawn from across prime central London, ensuring premiums are accurate, defensible and fully reflective of Westminster market conditions.

Westminster City Council

Areas We Cover in Westminster

Areas We Cover in Westminster

Marylebone (W1) — Prestigious Mansion Blocks

We handle lease extensions for landmark mansion blocks such as Chiltern Court, Devonshire House, and Portland Place Mansions, as well as conversions in Harley Street and Manchester Square. These prime central addresses require meticulous valuation due to high premiums.

Mayfair (W1) — Exclusive Conversions & Apartments

In Mayfair, we work on lease extensions for luxury flats in Grosvenor Square Apartments, Mount Street Gardens Mansions, and Park Lane Court, alongside boutique conversions in period townhouses. Limited supply and global demand mean precise, evidence-led valuations are essential.

Pimlico (SW1) — Riverside & Estate Stock

Pimlico lease extensions often involve flats in the Dolphin Square complex, as well as ex-local authority stock within the Churchill Gardens Estate and Lillington & Longmoore Gardens. We also cover smaller period mansion blocks near Warwick Square.

St John’s Wood (NW8) — Mansion Blocks & Modern Schemes

Our St John’s Wood instructions include large mansion blocks such as Abbey Road Mansions, Neville Court, and Lord’s View Apartments, plus modern riverside-style developments overlooking Regent’s Canal. We also work on ex-local authority flats in the Barrow Hill Estate.

Bayswater (W2) — Mixed Prime Stock

In Bayswater, we handle lease extensions for mansion blocks like Cleveland Square Apartments, Pembridge Mansions, and Prince’s Court, as well as conversions along Westbourne Terrace. Nearby ex-local authority developments include the Hallfield Estate.

📞 020 7373 7373
Or request a free initial consultation for your Westminster 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 Westminster  Council or a private freeholder. 

  • Westminster  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 Westminster

We have a proven track record working with leaseholders in Westminster , 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 Westminster Leaseholders Choose extension.lease

  • Local insight:We name actual blocks and estates where leasehold flats are located.
  • 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.
Westminster City Council

Recent Cases We've Handled in This Area

Everything you need to extend your lease

Charring Cross Road I Soho
WC2H
Statutory Lease Extension
Churchill Gardens I Westminster
SW1V
Statutory Lease Extension
Milbank Estate I Pimlico
SW1
Statutory Lease Extension
Old Gloucester St I Bloomsbury
WC1N
Statutory Lease Extension
Red Lion Street I Holborn
WC1R
Statutory Lease Extension
Tavistock Street I Covent Garden
WC2E
Statutory Lease Extension

Get Started with Your Lease Extension in Westminster

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.