Everything you need to extend your lease

At Extension.Lease, we provide specialist lease extension valuations and freehold purchase advice for leaseholders of former Merton Council properties across the borough, where Clarion Housing, acting by Latimer, is now the freeholder of most ex-council leasehold flats. Our experience covers developments such as Thornton House and Lakeview Court on The Downs in Wimbledon, Central Gardens Estate and Cavendish House in Morden, and major estates including Phipps Bridge, Eastfields and Pollards Hill in Mitcham. We also advise leaseholders in Ravensbury Estate, High Path Estate and Abbey Road developments in South Wimbledon, Raynes Park blocks around Coombe Lane, and former Right to Buy flats in Colliers Wood. Our valuations are accurate, robust and grounded in detailed local comparable evidence specific to Merton and Clarion-held stock.
In the west of the borough, in Wimbledon, Wimbledon Park and Raynes Park, most leasehold flats are in Edwardian conversions, interwar mansion blocks and newer apartment schemes close to the stations. Values there are high, so the premium can be substantial even on a reasonably long lease. In the east and south, in Mitcham, Morden and parts of Colliers Wood, a much larger share of flats were sold under Right to Buy, and the main issue is time: many of those 125 year leases are now close to the 80 year point at which marriage value becomes payable.
If your freeholder has written to you with an informal offer, ask us to look at it before you reply. Informal deals can seem attractive, but they sometimes keep a ground rent or add terms that a statutory extension would not allow. We will compare the offer with what the 1993 Act gives you and tell you plainly which route leaves you better off.
We handle lease extensions for properties in sought-after mansion blocks like Thornton House and Lakeview Court on The Downs, modern developments such as New Wimbledon Theatre Apartments on The Broadway, and ex-local authority schemes including Pelham Road Estate and Merton Hall Road. Riverside leaseholds near Wimbledon Park also form part of our portfolio.
Our Raynes Park work includes purpose-built flats along Grand Drive, 1930s maisonettes near Coombe Lane, and ex-local authority stock in Durham Road Estate. We also act on lease extensions for smaller private developments like Chapman Square on the Wimbledon Hill fringes.
In Morden, we cover lease extensions for flats in Central Gardens Estate, purpose-built blocks along London Road, and 1960s schemes near Morden Underground Station. Private developments such as Cavendish House and Kingswood Court are also common instruction points.
Mitcham lease extensions include ex-local authority estates like Phipps Bridge Estate and Eastfields Estate, plus 1930s maisonettes on Tamworth Lane. We also work on newer developments such as The Willows near Mitcham Eastfields Station.
We work on flats in modern riverside developments like Hardwicks Square and Britannia Point, as well as ex-council blocks off Christchurch Road and Fortescue Road. The Northern Line connection makes Colliers Wood popular with investors and first-time buyers alike.
South Wimbledon lease extensions range from ex-local authority flats on Merton High Street to private blocks like The Priory. We also cover maisonettes and conversions along Kingston Road and Morden Road.
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Speak to a surveyor about your Merton lease extension or freehold purchase, or book a free initial consultation at our Raynes Park office.
The premium depends on three things: the value of your flat, the number of years left on your lease and the ground rent you pay. Two flats with identical leases can therefore produce very different figures. A two bedroom flat in a Wimbledon mansion block is worth considerably more than a similar flat in Mitcham or Morden, and the premium rises with it.
On top of the premium you pay your landlord’s reasonable valuation and legal costs, which the 1993 Act allows them to recover, plus Land Registry fees. Our own fee is fixed at £2,750 + VAT*, covering the valuation, the negotiation and all of the legal work, and it is paid in two equal instalments.
Ask us for a free estimate of the full cost of your Merton lease extension before you commit to anything.
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.
In 2010 Merton Council transferred its housing to Merton Priory Homes, part of Circle Housing, and that stock is now held by Clarion Housing Group. If you bought your flat under Right to Buy, or bought from someone who did, Clarion is almost certainly your landlord and your Section 42 notice is served on Clarion rather than the council.
Away from the former council estates the picture is more mixed. Wimbledon’s mansion blocks and 1930s purpose-built flats are usually owned by investment freeholders or by companies run by the residents. Edwardian houses converted into two or three flats in Raynes Park, Wimbledon Park and South Wimbledon often have a private individual as freeholder, sometimes the owner of another flat in the same house. Each type of landlord approaches a negotiation differently, and we plan each case around who we are dealing with.
Everything you need to extend your lease






For most former council flats in Merton it is Clarion Housing. The council transferred its homes to Merton Priory Homes in 2010, and that stock became part of Clarion when Circle Housing merged with Affinity Sutton in 2016. Your landlord is named on the freehold title at HM Land Registry, and we check it before anything is served, because a Section 42 notice served on the wrong party will not be valid.
These three estates are part of Clarion’s regeneration programme, and Merton Council has made compulsory purchase orders to support it. If your flat is going to be bought back, the length of your lease affects the compensation you receive, so whether to extend is a financial calculation rather than an automatic yes or no.
Talk to us before serving a notice. We will look at where your block sits in the programme and work through the numbers with you.
More urgent than it may look. Marriage value becomes payable once the unexpired term drops below 80 years, and it can add thousands of pounds to the premium almost overnight. Many Merton Right to Buy leases were granted for 125 years in the mid to late 1980s, so they are now in the low to mid 80s.
The valuation date is fixed on the day the Section 42 notice is served. Serving before the 80 year mark protects you, even if the negotiations carry on after the lease has passed it.
Clarion, like any landlord, has at least two months to respond to a Section 42 notice with a counter-notice. Negotiation follows, and most cases settle within six to twelve months of the notice being served. If terms cannot be agreed, either side can apply to the First-tier Tribunal.
Registration of the new lease at HM Land Registry can then take a while longer, but we can ask for it to be expedited if you are selling or remortgaging.
Owning a share of the freehold does not lengthen your lease by itself. Buyers and lenders look at the lease, and a short lease still affects value and the ability to get a mortgage.
The advantage is that when you and the other flat owners hold the freehold together, you can usually agree an extension between yourselves by deed of variation, often for a nominal premium. Blakes can advise on the terms and Arcadia Law can draft the deed and register it.
The premium is based on the share of your flat’s value that the freeholder gives up, so it moves in line with what the flat is worth. With the same lease length and ground rent, a flat worth £550,000 in Wimbledon will produce a much larger premium than one worth £300,000 in Mitcham.
That is why we value every flat on its own local evidence, using sales in the same street, block or estate, rather than relying on a borough average.
Yes. Once the Section 42 notice has been served, the benefit of it can be assigned to your buyer when the sale completes. The buyer then takes over the claim, keeping the valuation date your notice has already fixed.
This is a common route for short lease flats in Merton, because many mortgage lenders will not lend where fewer than 80 or 85 years remain.
No. A statutory lease extension reduces your ground rent to a peppercorn, but your service charges continue on the same basis as before. If you live in a Clarion block, Clarion will carry on managing the building and charging for repairs, insurance and major works in the usual way.
The extension changes the length of your lease and removes the ground rent. It does not change your other obligations as a leaseholder.