Everything you need to extend your lease

At Extension.Lease, we provide specialist lease extension valuations and freehold purchase advice across the London Borough of Lewisham. From Victorian and Edwardian conversions in Brockley, Ladywell and Hither Green, to period mansion flats in Blackheath and Forest Hill and modern riverside developments in Deptford, our valuations are grounded in detailed local knowledge and supported by carefully analysed comparable evidence. We regularly act for leaseholders in Lewisham, Catford, Lee, Sydenham, New Cross, Honor Oak, Bellingham and Grove Park, covering a broad mix of converted houses, purpose-built blocks and 1960s–1980s ex-local authority flats.
We also have extensive experience advising on ex-local authority estates where many leases were granted during the 1980s Right to Buy era, including the Pepys Estate, Evelyn Estate and Crossfields Estate in Deptford, the Kender Estate in New Cross, the Honor Oak Estate in Brockley, the Heathside and Lethbridge Estate near Lewisham town centre, and the Bellingham and Downham estates in the south of the borough. Lewisham’s property stock is highly varied, and each estate or block requires a valuation approach tailored to its specific lease structure, tenure history and market position.
Lewisham Council remains the freeholder of a large proportion of former local authority flats in the borough, although some estates have been transferred to housing associations, and we have extensive experience negotiating statutory lease extensions with both. Blakes Chartered Surveyors prepare detailed, RICS-compliant valuations based on Lewisham-specific transactional data, with careful analysis of relativity and marriage value where applicable, while Arcadia Law serve the Section 42 notice, negotiate the premium and complete registration at HM Land Registry. Our coordinated approach ensures the statutory process is handled strategically and efficiently, protecting both value and outcome for leaseholders across Lewisham.
We handle lease extensions for apartments in Renaissance Apartments, Riverdale House, and Silkworks, as well as ex-local authority stock in the Sunderland Road Estate and Lewisham Park Estate.
In Deptford, we act on flats in Paynes & Borthwick Wharf, Greenland Place, and Deptford Landings, along with ex-local authority stock in the Pepys Estate and Crossfield Estate.
Catford lease extensions include flats in Eros House, Ravensbourne Court, and ex-local authority developments on the Rushey Green Estate and Blythe Hill Estate.
Our New Cross work covers flats in conversions along New Cross Road and Jerningham Road, modern apartments in One SE8, and ex-local authority blocks in the Hatcham Estate.
In Brockley, we handle lease extensions for Victorian conversions along Tressillian Road, purpose-built flats in Brockley Court, and ex-local authority stock in the Avonley Estate.
We work on flats in developments such as Forest Hill Court and Homecroft House, along with ex-local authority blocks in the Sydenham Hill Estate and Perry Vale Estate.
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Ask a chartered surveyor about your Lewisham lease extension, whoever your landlord is, and get a free estimate before you commit.
Premiums in Lewisham depend on your flat’s long lease value, the unexpired term and the ground rent. The gap between areas can be wide. A flat in a Brockley or Ladywell conversion will usually be worth more than a similar one in Downham or Bellingham, and the premium rises with value.
You also pay the landlord’s reasonable valuation and legal costs, which are recoverable under the 1993 Act, and the Land Registry fee. Our fee is fixed at £2,750 + VAT*, which includes the valuation, the negotiation and all of the legal work, and you pay it in two equal instalments.
We are happy to give you a free estimate of the full cost of your Lewisham extension before you decide 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.
Lewisham Council still owns most of its former council housing. Its arm’s length company, Lewisham Homes, managed the stock for many years until it was brought back into the council on 1 October 2023. Around 1,800 homes in Brockley and Ladywell are managed by Pinnacle under a PFI contract with Regenter B3 until June 2027, when the council takes them over, but the council is the freeholder there too. The main exception is the south of the borough. In 2007 the council transferred its homes in the Downham, Bellingham and Whitefoot area to Phoenix Community Housing, which is now the landlord there.
Some estates have also changed hands through regeneration. Peabody, which absorbed Family Mosaic, has rebuilt Heathside and Lethbridge near Lewisham station, and L&Q is leading the rebuilding of the Excalibur estate of post-war prefabs in Catford. Away from the estates, Brockley, Forest Hill and Sydenham have a large stock of Victorian houses converted into flats, often with a private freeholder, while Deptford and Lewisham town centre have newer blocks owned by investors. We check the title before serving anything.
Everything you need to extend your lease






Nothing has changed about who owns your building. Lewisham Homes managed the council’s housing but never owned it, and its work moved back into the council on 1 October 2023. For a former council flat, the London Borough of Lewisham remains the freeholder.
Your Section 42 notice is therefore served on the council. We confirm the freehold title at HM Land Registry first, because a notice served on the wrong party is invalid.
On Lewisham Council. About 1,800 homes in Brockley and Ladywell are managed under a PFI contract that began in 2007, but the council remains the freeholder and you remain a council leaseholder. The contract ends on 3 June 2027, when the council takes over management directly.
The handover will affect how major works are charged, as the PFI cap on major works bills ends after June 2027. It does not change your right to extend or how the premium is valued.
Very probably. In 2007 Lewisham transferred its housing in the Downham, Bellingham and Whitefoot area to Phoenix Community Housing, a resident-led housing association, and the freehold of the blocks went with it.
Your lease terms did not change on the transfer, and you have exactly the same rights under the 1993 Act as a council leaseholder. The notice is served on Phoenix, which will appoint its own valuer and solicitors.
Two reasons. First, the premium tracks value. With identical leases, a flat worth £475,000 in Brockley will produce a bigger premium than one worth £325,000 in Bellingham.
Second, conversion leases are often 99 year leases granted in the 1970s or 1980s, so many are already below 80 years and carry marriage value, while council leases usually started at 125 years. We value each flat on evidence from its own street or estate.
Not before you know the timetable. Where an estate is rebuilt, leaseholders are normally bought out, either by agreement or through compulsory purchase, and the compensation is based on the market value of the flat, which depends partly on lease length.
Extending can therefore change what you are paid. We will look at where your block sits in the programme and show you the figures with and without an extension.
The 1993 Act has a route for this. If the freeholder cannot be found, you can apply to the county court for an order allowing the new lease to be granted without them. The premium is set by the First-tier Tribunal and paid into court.
It takes some extra steps, including showing that reasonable efforts were made to trace the landlord, but it is a well established process. Arcadia Law can handle the application and Blakes can prepare the valuation.
Yes. Once the Section 42 notice has been served, the benefit of it can be assigned to your buyer on completion. The buyer takes over the claim and keeps the valuation date already fixed by your notice.
This is a common way to sell a short lease flat, because many lenders will not lend where fewer than 80 or 85 years remain. Arcadia Law can provide the notice, counter-notice and assignment to your buyer’s solicitor.
No. A statutory extension reduces the ground rent to a peppercorn and adds 90 years to the term, but your service charges carry on as before. The council will still charge for repairs, insurance and major works in the usual way.
If you are in the Brockley PFI area, the way major works are charged is due to change after June 2027, but that is separate from your lease extension.