Chartered Surveyors & RICS Registered Valuers,
London

Lease extensions, collective enfranchisement, freehold purchase and disposal, probate and tax valuations, building surveys, compulsory purchase and expert witness work — valued, negotiated, and through our associate law firm seen through to completion.

We act for leaseholders and freeholders, and for the solicitors, executors, trustees and lenders who instruct us.

Contact us for a no obligation fee quotation.

20,000+ lease renewalsRICS regulatedALEP membersTribunal and court experienceHundreds of five-star reviews

Why clients and their advisers instruct Blakes

Blakes acts for private clients, leaseholders and freeholders, solicitors, managing agents, executors and corporate property owners. The work spans RICS Red Book valuations for probate, inheritance tax, capital gains and matrimonial purposes, Level 2 and Level 3 building surveys, lease extension and collective enfranchisement valuations, and compulsory purchase claims.

We are RICS Registered Valuers. Our reports are delivered to agreed deadlines, including urgent instructions where required, and prepared to withstand scrutiny by HMRC or by a surveyor acting on the other side. We are renowned for our pragmatic, commercially focused negotiation expertise, whether the matter is a lease renewal, a freehold purchase, an acquisition or a compulsory purchase claim.

Where a matter cannot be settled, we have given expert evidence before the First-tier Tribunal, the County Court and the High Court. Most of our instructions never get that far — but knowing how a figure would be tested is what allows us to tell you, early and candidly, which arguments carry weight and which do not.

Victorian terraced houses in London

We are members of the Association of Leasehold Enfranchisement Practitioners (ALEP) 

Blakes Chartered Surveyors are members of and regulated as a practice by the Royal Institution of Chartered Surveyors (RICS).

Our Services

Formal valuation and negotiation across leasehold reform, probate and dispute work — for private clients and the professionals who instruct them.

Lease Extension Valuations

We calculate the premium, advise on timing, and negotiate with the landlord’s surveyor to settle without a tribunal.

Collective Enfranchisement

From two-flat conversions to large mixed-use blocks: qualification, the premium, and apportionment between participants.

Professional Market Valuation

Red Book reports for probate, inheritance tax and capital gains tax, prepared for executors, solicitors and accountants.

Litigation & Expert Witness

CPR-compliant reports and oral evidence from surveyors who have appeared before the tribunal and the higher courts.

RICS Homebuyer & Building Surveys

RICS Home Surveys and building surveys for buyers and owners who want to know exactly what they are taking on.

Compulsory Purchase & CPO

Compensation claims where property is acquired by an authority — valuation, disturbance and negotiation for claimants.

Arcadia Law Solicitors

In association with our associate law firm, Arcadia Law, we offer a streamlined service for leaseholders and freeholders seeking to extend a lease on a residential flat or sale and purchase of a freehold.

About Us

Find out more about what we do and who we are.

Our Services

Find out more about the range of services we offer.

Case Studies

See how we have helped past and current clients.

Looking for a packaged lease extension service?

For a single flat, extension.lease is usually the simplest and most cost-effective route — valuation, negotiation and legal work as one managed fixed fee service.

myfreehold

Are you a freeholder?

myfreehold.com is our service for freeholders, portfolio landlords, resident freehold companies and managing agents — valuation by Blakes and legal work by Arcadia Law on a single instruction. Section 42 and section 13 counter-notices, right of first refusal, disposals, informal extensions and licences.

Client Testimonials

Posted on Google Google
350 days ago
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I couldn’t recommend Blakes Surveyors highly enough for their lease extension service. From the very start, the team was professional, approachable, and incredibly knowledgeable about leasehold reform and the extension process.
Posted on Google Google
3 days ago
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I asked them to assist with an extension to the lease on my ex council property they were very efficient dealing with the valuation. When the council countered with a much higher figure for the costs of the lease extension they negotiated on my behalf and managed to reduce the figure significantly. I am very grateful to them and would recommend their services. Many thanks!
Posted on Google Google
9 days ago
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The whole experience with Blakes and Arcadia Law was handled very smoothly. All the initial stress was taken from my shoulders and I was kept informed at each step.
Posted on Google Google
20 days ago
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Really impressed with the service we received…helpful, clear, efficient and without fuss. Would recommend
Posted on Google Google
21 days ago
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Very proffesional and friendly service very effecient and recommended to help with extention of lease
Posted on Google Google
25 days ago
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First time taking on a leasehold extension for our property which felt like quite the daunting task, but all of those worries pretty much went away as soon as we contacted Blakes. Arial and their team couldn't have been more helpful and clear on what the process entails, the steps that needed to be taken and most importantly what the costs would be right up front. Highly recommended, many thanks.
Posted on Google Google
33 days ago
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Shane and the team did a great job with my Lease Extension - I’d recommend them. Chris
Posted on Google Google
36 days ago
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Professional, courteous and diligent in the delivery of 'a market valuation and negotiation' of a property for a Compulsory Purchase Order purposes with RBK.
Posted on Google Google
50 days ago
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I have recently used this company to renew my lease and I cannot fault them. Ridhwan in particular was outstanding with his customer service, knowledge of the whole process and willingness to help. He has a deep understanding of the lease renewal process and I was always very grateful for his help and professionalism. For anybody looking to renew their lease, I would highly recommend Extension.Lease to deal with the whole process. They made it as stress-free as possible.
Posted on Google Google
53 days ago
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Friendly, very efficient & good communicators. I have no hesitation in recommending them to whoever requires professional help in lease extension.
Posted on Google Google
63 days ago
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The whole process of renewing the lease hold was straight forward and efficient from start to finish. The communication received was excellent throughout and they were always available to answer any questions. They were very professional and made what felt like a complicated process feel simple and manageable. I would not hesitate to use their services again in the future and would highly recommend them.
Posted on Google Google
67 days ago
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Common Questions

How much does a lease extension valuation cost?

Our fee depends on the property, the unexpired lease term and whether the matter is likely to require negotiation or tribunal evidence. We agree a fixed fee before any work begins. Packaged fixed fees covering valuation, negotiation and the legal work are available through extension.lease.

When should I extend my lease?

Earlier is almost always cheaper. The premium rises as the unexpired term falls, and it rises sharply once the term drops below 80 years. Lenders also become cautious well before that point: in our experience caution starts where the unexpired term is under 90 years, where the ground rent exceeds 0.1% of the flat’s market value, or where rent reviews occur at intervals of less than 20 years. Thresholds vary between lenders.

What is marriage value, and when does it apply?

Marriage value is the increase in the value of the flat created by granting the new lease. Under the law as it currently stands it becomes payable once the unexpired term falls below 80 years, and is shared equally between the leaseholder and the landlord. This is the single biggest reason to act before the 80-year point. Leasehold reform legislation may change how marriage value is treated, so it is worth taking current advice.

Do I need a formal valuation for probate, or will an estate agent’s letter do?

For inheritance tax purposes the figure returned must reflect open market value under section 160 of the Inheritance Tax Act 1984. An agent’s appraisal is a marketing opinion rather than a formal valuation, and it can be challenged. A Red Book valuation prepared by an RICS Registered Valuer sets out the evidence and methodology behind the figure, which is what HMRC expects to see.

How long does a statutory lease extension take?

A straightforward claim usually completes within six to twelve months. The landlord has two months to serve a counter-notice, after which the premium is negotiated. If terms cannot be agreed, an application to the First-tier Tribunal can be made between two and six months from the counter-notice. Most claims settle by negotiation without reaching a hearing.

Let’s Talk

Send us the address, the unexpired lease term and the ground rent, and we’ll come back with a fixed fee quote and our view on the figure. If it isn’t the right time to act, we’ll tell you that too.