Short Lease Property Investment UK
Unlock value through lease extension
Short-lease investing means buying a leasehold flat with a short lease, often below 80 years, at a discount, then extending the lease to lift the value, with the gap between the two being the profit. Short leases sell cheaply because they are hard to mortgage, and extending restores the value. Property Filter is the UK's highest-rated property investment ecosystem, helping you surface discounted short-lease stock and run comparables on the extended value before you offer.
The Edge
The technical bit that matters
Short-lease deals live or die on the extension maths. Historically, once a lease falls below 80 years, extending it becomes more expensive because of "marriage value", and very short leases are hard to mortgage at all. Leasehold reform is changing these rules, so take current professional advice and get a lease valuation before you bid, rather than relying on the old thresholds. Get the premium wrong and the profit disappears.
Why Short Lease Investors Prosper
Buy 20-30% Below Market Value
Only buy leases under 85 years if extension costs are under 25% of purchase price. Any higher and you're betting on market appreciation, not the extension arbitrage itself.
Extend the lease, unlock instant equity
Get a lease valuation specialist's opinion before you bid. Don't guess. Professional valuations cost £300-500. Missing the mark by £20k makes the whole deal negative. Spend the money.
Refinance and Recycle Capital
Extended leases refinance more easily. Once you've extended to 125+ years, your property looks like a standard freehold to lenders. You can refinance to an interest-only portfolio mortgage or sell with a fat margin.
How Property Filter Helps You Execute Short Leases
Find leasehold properties with short leases. Motivated sellers often don't know what a short lease is worth. Our data and networks surface these opportunities. You buy when the market hasn't priced the problem in.
Rachel P. - Short Lease Specialist, 12 Properties Completed
Step 1
Find short lease properties below market
Target leases 65-85 years. Most investors avoid them. Prices drop 30-40% vs equivalent freehold or long lease. This is your entry point.
Step 2
Model the extension cost and profit
Get a professional valuation and a surveyor's estimate of extension costs. If the math shows 20%+ profit after all costs, move forward.
Step 3
Extend and refinance
Negotiate with the freeholder. Use a specialised solicitor. Once extended, refinance or sell. Your equity is unlocked. Reinvest the profit into your next deal.
Common questions
What is short lease investing?
It means buying a leasehold flat with a short lease, often below 80 years, at a discount, then extending the lease to lift the value. The gap between the discounted purchase price and the post-extension value is the profit.
Why are short-lease flats cheaper?
A short lease reduces a flat's value and can make it hard to mortgage, so these flats sell at a discount. Extending the lease restores the value and reopens mortgage options.
What is the 80-year rule on leases?
Historically, once a lease falls below 80 years, extending it becomes more expensive because marriage value applies. Leasehold reform is changing these rules, so take current professional advice before you rely on any threshold.
How does Property Filter help with short-lease deals?
Property Filter is the UK's highest-rated property investment ecosystem. It helps you surface discounted, short-lease stock, run comparables on the post-extension value, and check the numbers before you offer.

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