Short Lease Mortgage: How Short a Lease Can You Get a Mortgage On?

By Jake Stott, Knox Mortgages. Reviewed by an adviser authorised under Fort Advice Bureau, FCA FRN 972730. Published 27 September 2026. Last reviewed 27 September 2026.

A short lease mortgage is a mortgage on a leasehold property, usually a flat, where the unexpired lease has fallen below the length most lenders want, typically under 80 to 85 years. You can still get one. High street lenders will go as low as 55 to 70 years at the start if enough lease remains when the mortgage ends, and specialist or bridging lenders go lower still, often on the condition that the lease is extended.

Related property guides: flying freehold mortgages and title splitting.

The number that matters is not just today’s lease length. Every lender runs two tests: a minimum at application and a minimum left at the end of your mortgage term. Pass both and the case is mainstream. Fail either and you need a different lender, a shorter term, or a lease extension. Below: the published rules lender by lender, the 80-year line, the 2024 reforms, and extension costs with the arithmetic shown.

How short a lease can you get a mortgage on?

On a standard residential mortgage, the shortest lease most mainstream lenders will accept is around 55 years at application, and only if at least 30 years will remain when the mortgage ends. Nationwide and Santander work to those numbers. Halifax, Barclays and Coventry want 70 years. Skipton, Leeds and Virgin Money want 85 years. Below 55 years you are into specialist lenders, private banks and bridging finance, and almost every lender at that point will want to see the lease extended as part of the deal.

The end of term test often bites first. A 72-year lease with a 35-year mortgage leaves 37 years at the end, which passes a “30 years beyond the term” rule. The same lease with a 45-year term leaves 27 years and fails it. Shorten the term and the case can work.

Minimum lease length for a mortgage: lender by lender

The table below is taken from each lender’s published intermediary criteria, checked in September 2026. Criteria change without notice, and the lender’s valuer always has the final say on whether the property is acceptable security.

Lender	Minimum lease at start	Minimum left at end of term	What else they say
Nationwide	55 years at application (90 years if the loan is over 85% LTV)	30 years after the term ends (England and Wales)	Valuer can still decline for onerous ground rent, e.g. over 0.5% of value or doubling every 5 to 10 years
Santander	55 years at the start	30 years at the end of the term	Conveyancer must report if the actual term differs from the valuer’s assumption for leases of 55 to 82 years
NatWest	No separate start figure published	30 years at the end of the term (10 years for prime central London)	Warns that value keeps falling below 85 years until the lease is extended
HSBC	Not published publicly	More than 30 years at the end of the term (35 for buy-to-let)	Criteria detail is behind the intermediary login
Halifax	70 years from the date of the mortgage	Not stated separately	No forfeiture on insolvency clauses; consent to assign cannot be unreasonably withheld
Barclays	70 years at application	Not stated separately	Under 70 years only case by case, where the lease is extended within the purchase and the offer is conditional on it
Coventry	70 years at valuation	Not stated separately	Leasehold is the only acceptable tenure for flats in England and Wales
Skipton	85 years on completion	Not stated separately	Less than 85 years on completion is unacceptable
Leeds	85 years at the start (criteria effective 24 August 2026)	Not stated separately	Will lend where renegotiating the lease is central to the purchase, if the new lease meets the minimum at completion
Virgin Money	85 years at application	Not stated separately	Under 85 years is fine if the lease will reach 85 years by completion; lower by exception
Specialist lenders (e.g. Vida Homeloans)	Published guides have shown 40 years on repayment and 70 years on interest-only	Case by case	Pricing and LTV reflect the risk; check the current guide
Bridging lenders	No fixed minimum	Not applicable (6 to 18 month loans)	Lend on today’s value with an extension and refinance as the exit

Two points. The 85-year lenders will often lend if the extension completes at the same time as the purchase. And the Santander and HSBC figures are as reported through their conveyancing instructions and criteria summaries; we confirm them live on each case.

Why is 80 years the line that matters?

Eighty years is where marriage value starts. When you extend a lease with more than 80 years left, you pay the freeholder for the ground rent they lose and the value of getting the flat back at the end, and nothing more. Once the lease drops to 80 years or below, the law adds marriage value: half of the increase in the flat’s value that the extension creates, on top of the rest.

That is why premiums jump rather than creep. On the example later on this page, the premium more than doubles between 82 and 72 years, and rises by around 70% again by 62. A flat at 78 years is not “nearly 80”; it is already over the cliff, and it sells at a discount that reflects the higher cost of fixing it.

It is also why lenders’ comfort zones cluster at 80 to 85 years. The practical rule: if you own a flat approaching 82 years, extend now. Waiting costs real money every year.

What has the Leasehold and Freehold Reform Act 2024 changed?

Less than most people think, as of September 2026. The Act became law in May 2024, but most of its lease extension reforms need commencement regulations that have not been made.

Reform in the 2024 Act	Status in England and Wales, September 2026
Removal of the two-year ownership rule before you can claim a statutory lease extension	In force since 31 January 2025 (SI 2025/57)
Standard extension term increased from 90 years to 990 years	Not in force. Statutory extensions still add 90 years to the existing term
Marriage value abolished	Not in force. Marriage value is still payable on leases of 80 years or less
Prescribed deferment and capitalisation rates set by government	Not in force. Consultation stage
Leaseholders no longer pay the freeholder’s costs	Not in force. You still pay the freeholder’s reasonable legal and valuation costs
Ban on new leasehold houses	Not in force

Freeholders challenged the valuation reforms and lost in the High Court in October 2025, but an appeal is pending, and government has said the valuation provisions need corrections through a further bill. Marriage value abolition is unlikely to start before 2027.

Our view: do not delay an extension in the hope of a cheaper premium later. The saving may come, but the date is unknown.

Can I extend the lease straight after I buy?

Yes. Since 31 January 2025 there is no longer a requirement to have owned the flat for two years before you can serve a statutory claim for a new lease in England and Wales. You can serve a section 42 notice under the Leasehold Reform, Housing and Urban Development Act 1993 as soon as you are the registered leaseholder of a qualifying flat.

The statutory route gives you a new lease of the existing term plus 90 years at a peppercorn ground rent. The process runs roughly like this:

1. Your specialist valuer assesses the premium and you serve the section 42 notice, proposing a figure. This fixes the valuation date.
2. The freeholder can ask for a deposit (the greater of 10% of your proposed premium or £250) and inspect the flat.
3. The freeholder must serve a counter-notice by the date in your notice, which must be at least two months away.
4. If the premium is not agreed, either side can apply to the First-tier Tribunal (Property Chamber), and you must do so within the statutory window after the counter-notice.
5. Once terms are agreed or determined, the new lease is completed and registered.

Uncontested cases often finish in 3 to 6 months; disputed ones can take a year. An informal deal can be quicker but may not include the peppercorn rent or 90 extra years, so have your solicitor check the terms.

Buying a flat with a short lease: can the seller serve the notice for you?

Yes, and it is one of the most useful tools in a short lease purchase. The seller serves the section 42 notice before exchange and assigns the benefit of it to you on completion. The assignment has to happen at the same time as the lease itself is transferred, so your solicitors build it into the contract.

It starts the statutory clock early, fixes the valuation date on the day the seller served it so the premium stops creeping up, and shows a lender the extension is already in motion, which is the condition Barclays, Leeds and Virgin Money describe in their criteria.

It does not make the purchase mortgageable on its own: some lenders lend with a condition that the extension completes, others wait until it has. Agree who pays the premium and costs, and whether the price reflects them, before the notice is served.

Worked example: what does a lease extension cost, and is it worth it?

The best way to see the cost is with numbers. This example uses the standard statutory method with deferment at 5% and capitalisation at 6%, a ground rent of £250 a year, and an extended lease value of £300,000. The short lease values use illustrative relativity percentages; a real case uses a specialist valuer’s evidence.

Unexpired lease	Value as it stands	Ground rent and reversion lost by freeholder	Marriage value (50% share)	Estimated premium
82 years	£285,000 (95%)	£9,609	£0 (not payable above 80 years)	£9,609
72 years	£270,000 (90%)	£13,026	£8,487	£21,513
62 years	£246,000 (82%)	£18,587	£17,707	£36,293

Here is the arithmetic for the 72-year flat. The freehold value is taken as £303,030 (the extended lease value at 99% of freehold).

• Reversion: £303,030 discounted over 72 years at 5% is £303,030 ÷ 33.55 = £9,034.
• Ground rent: £250 a year for 72 years at 6% is £250 × 16.42 = £4,104.
• Freeholder’s current interest: £9,034 + £4,104 = £13,137.
• Freeholder’s interest after the extension: a reversion 162 years away, worth about £112, and no ground rent. So the freeholder loses £13,137 minus £112 = £13,026.
• Marriage value: values after (£300,000 + £112 = £300,112) minus values before (£270,000 + £13,137 = £283,137) = £16,974. The leaseholder pays half: £8,487.
• Premium: £13,026 + £8,487 = £21,513.

Add your own solicitor and valuer, plus the freeholder’s reasonable costs, which together commonly run to £3,000 to £5,000 on an uncontested case. Say £25,500 all in. The flat’s value rises from £270,000 to £300,000, a £30,000 uplift, so the extension more than pays for itself before you count the bigger prize: the flat becomes mortgageable with every lender in the table, which protects both your remortgage and your eventual sale.

Should I use bridging to buy a short lease flat, extend, then refinance?

Bridging is the right tool when no mortgage lender will lend on the lease as it stands, or the flat is sold at auction or to cash buyers only. The bridge funds the purchase, the extension completes while you own the flat, and a normal mortgage repays the bridge on the longer lease and higher value.

Stage	Typical timing	What happens
Buy with a bridge	Weeks 0 to 4	Bridging lender values the flat on today’s short lease; loans often up to about 70% to 75% of that value
Serve or take over the section 42 notice	Day one of ownership	No two-year wait since January 2025, or take an assigned notice from the seller
Agree the premium and complete the new lease	Months 3 to 9	Statutory timetable, faster if agreed without tribunal
Refinance onto a mortgage	Months 6 to 12	New lender values the flat on the extended lease; the bridge and extension costs are repaid

If the flat will be your home, it is a regulated bridging loan, so affordability and the exit are assessed properly. Costs are monthly interest, arrangement and exit fees, and two sets of legal and valuation costs, so the numbers have to work: a bridge makes sense when the discount on a short lease flat is larger than the premium plus the bridging costs. On a flat bought for £30,000 under long lease value with a £21,500 premium, a six-month bridge costing around £6,000 to £8,000 leaves little margin. On a £50,000 discount it looks very different.

Do cash buyers get a discount on short lease flats?

Usually, yes. The buyer inherits the extension premium and the pool of mortgage buyers shrinks, so below about 60 years cash buyers and investors are often the only realistic bidders. The discount should at least equal the extension premium plus costs. On the 62-year example above, the value gap between short and long lease is £54,000 and the premium plus costs is around £40,000. A buyer who pays £246,000, extends for about £40,000, and ends up with a £300,000 flat has created roughly £14,000 of equity for the time and risk.

If you are selling, your options are to extend before sale, serve the notice and assign it to the buyer, or accept a cash buyer’s discount. The choice changes how much deposit you carry into your next purchase.

Why do short lease mortgage applications get declined, and what is the fix?

Most short lease declines are predictable, which means most are avoidable if the lease is checked before the application goes in.

Reason for decline	What happened	The fix
Lease below the lender’s start minimum	Applied to an 85-year lender with a 74-year lease	Apply to a 55 or 70-year lender, or extend first
End of term test failed	70-year lease with a 40-year term leaves exactly 30 years, which fails a “more than 30 years” rule	Shorten the term, or pick a lender with a lower end of term rule
Valuer down-values or declines	Valuer sees poor saleability below 80 years	Serve or assign the section 42 notice so the extension is in train; use a lender that values on the extended lease
Onerous ground rent	Rent doubling every 10 years or above 0.1% to 0.5% of value	Deed of variation with the freeholder, or extend (the new lease carries a peppercorn rent)
Defective lease	Missing repair, insurance or access clauses	Solicitor arranges a deed of variation or indemnity policy acceptable to the lender
Building safety	No EWS1 form or cladding status unclear on a taller block	Get the building safety paperwork before applying; some lenders need it regardless of lease length

A short lease is rarely the only issue, and the lender with the right answer on lease length may have the wrong answer on ground rent. Only book the mortgage valuation with a lender whose criteria you already know fit.

A Knox case: first-time buyer, 68-year lease

This is an illustrative case based on the type of enquiry we see, with details changed. A first-time buyer found a one-bedroom flat in Greater Manchester priced at £150,000, with 68 years left on the lease and a ground rent of £150 a year. Comparable long lease flats were selling at around £170,000. Her own bank declined in principle because it wanted 85 years.

We did three things. First, we asked her solicitor to get the seller to serve a section 42 notice before exchange and assign it on completion, with the seller paying the freeholder’s deposit and £3,000 off the price. Second, we placed the mortgage with a lender that accepts 55 years at the start and 30 at the end, on a 30-year term so 38 years remain at the end. Third, we set aside the estimated premium and costs, around £16,000 based on her valuer’s figure, from savings she would otherwise have put into a larger deposit.

The extension completed eight months after purchase. At her first remortgage the flat was valued on a lease of more than 150 years and every lender was open to her. If you are a first-time buyer looking at a short lease flat, this is the sequence to plan for.

Can I remortgage a short lease flat?

Yes, if the lease still passes your new lender’s two tests. The trap is that a lease which passed at purchase can fail later. A 75-year lease bought with a 30-year term leaves 45 years at the end; ten years on, at remortgage time, the lease is 65 years and a new 25-year term leaves 40. That passes Nationwide and Santander, but fails the 70 and 85-year lenders, so your choice of deal shrinks each year.

The fix is to extend before you remortgage, or at the same time. Several lenders will release extra borrowing to pay the premium, because the extension increases the value of their security. This is sometimes called a lease extension mortgage: a remortgage or further advance that funds the premium and costs, completed alongside the new lease. The lender will usually want the premium agreed, or determined by tribunal, before it lends, and a valuation on the extended lease.

If you hold a share of freehold, the lease can often be extended to 999 years cheaply between the owners. Leases split off a single title raise their own lender questions, covered on our title splitting page.

Short lease mortgages on buy-to-let flats

Buy-to-let lenders are usually stricter on lease length, because interest-only leaves the whole loan outstanding at the end of the term. Santander requires 50 years at the start where any part of a buy-to-let loan is interest-only, and HSBC wants more than 35 years left after the term, as reported in its criteria. For investors, a short lease flat can be a deliberate value-add play: buy below market, extend, then refinance onto a buy-to-let mortgage at the higher value. Make sure the rent covers the stress test on the post-extension loan.

Frequently asked questions

Can you get a mortgage on a short lease flat?

Yes. Mainstream lenders go as low as 55 years at application if at least 30 years will remain at the end of the mortgage. Below that, specialist lenders, private banks and bridging lenders can help, usually with a condition that the lease is extended.

What is the minimum lease length for a mortgage?

It depends on the lender. As of September 2026, Nationwide and Santander accept 55 years at the start, Halifax, Barclays and Coventry want 70 years, and Skipton, Leeds and Virgin Money want 85 years. Most also require 30 years or more to remain when the mortgage ends.

Can I get a mortgage on an 80 year lease?

Yes. An 80-year lease passes the start test with every lender in our table except the 85-year lenders, unless the extension completes alongside the purchase. The catch is cost: at 80 years or below, marriage value is payable on any extension, so the price should reflect that.

Do I have to own the flat for two years before extending the lease?

No. The two-year ownership rule was removed in England and Wales on 31 January 2025. You can serve a statutory section 42 notice as soon as you own the flat, or take over a notice the seller served before completion.

Has marriage value been abolished?

Not yet. The Leasehold and Freehold Reform Act 2024 abolishes marriage value, but that part is not in force as of September 2026. Marriage value is still payable on any lease of 80 years or less, and commencement is unlikely before 2027.

How much does it cost to extend a lease?

On our worked example of a £300,000 flat with £250 ground rent, the premium is about £9,600 at 82 years, £21,500 at 72 years and £36,300 at 62 years. Add roughly £3,000 to £5,000 of legal, valuation and freeholder costs on an uncontested case.

Can I get a mortgage to pay for a lease extension?

Often, yes. Many lenders will lend extra on a remortgage or further advance to cover the premium, because the extension raises the property’s value. They normally want the premium agreed and a valuation based on the extended lease before releasing funds.

Is it worth buying a flat with a short lease?

It can be, if the discount at least covers the extension premium and costs, and you have a clear plan to extend. Without that plan, the flat gets harder to mortgage and sell every year, and the premium keeps rising once the lease is below 80 years.

Talk to us before you make an offer

A short lease is a pricing and sequencing problem, not a dead end. Book a free, no-obligation discovery call and we will check your lease against every lender’s two tests, estimate the extension cost, and set out the order to do things in before you commit.

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