How Leasehold vs Freehold Affects Your Property’s Value
Two flats, identical, side by side, can be worth meaningfully different amounts purely because of how their leases are structured. Tenure is one of the biggest value factors that a simple comparable-sales estimate can't see just from an address.
Freehold: you own the building and the land
Most houses in England and Wales are sold freehold, you own the property and the land it sits on outright, with no lease to run down and no ground rent or service charge to a landlord. It's the simpler, generally more valuable form of ownership, all else being equal.
Leasehold: you own the right to live there for a fixed term
Most flats (and a shrinking number of new-build houses) are sold leasehold. You own the property for the length of the lease, commonly granted at 99, 125 or 999 years, after which ownership reverts to the freeholder unless the lease is extended. Leaseholders typically pay ground rent and a service charge, and need the freeholder's or managing agent's consent for certain changes.
Why lease length moves the price so much
As a lease gets shorter, it becomes both less valuable and harder to mortgage, most mainstream lenders want at least 70-85 years remaining at the end of the mortgage term. Once a lease drops under 80 years, extending it becomes significantly more expensive because of something called "marriage value": roughly speaking, once you're below that threshold, the leaseholder has to share the uplift in value that comes from extending the lease with the freeholder. See our guide on short lease properties for how big that effect is.
Ground rent and service charges matter too
A flat with a nominal £50/year ground rent is a very different proposition to one with a doubling ground rent clause, which can make a property difficult to mortgage or sell at all, several major lenders have blacklisted certain doubling-ground-rent developments outright. High or rapidly rising service charges have a similar, if less dramatic, dampening effect on value, since they're effectively a recurring cost a buyer has to factor into affordability.
What this means for any valuation estimate
An automated valuation comparing your leasehold flat to "similar flats nearby" is implicitly averaging across a mix of lease lengths and ground rent terms, unless it specifically knows yours. If your lease is unusually short or long relative to the local norm, treat any automated estimate as a starting point and get a specialist leasehold valuation (or at minimum, check comparable sales with a similar remaining lease term) before relying on the number.
A worked example
Two otherwise identical 2-bedroom flats in the same block: Flat A has a 999-year lease (effectively freehold in practical terms) and a nominal £10/year ground rent. Flat B has 78 years remaining and a £250/year ground rent that doubles every 25 years. Comparable-sales data for "2-bed flats in this postcode sector" would treat both as the same input. In practice, Flat B is likely to sell for 8-15% less once a buyer or their mortgage lender factors in the sub-80-year lease extension cost and the doubling ground rent clause, even though nothing about the flat's physical size or condition differs.
Frequently asked questions
Can I mortgage a flat with under 80 years left on the lease?
Often yes, but with a smaller pool of willing lenders and potentially a lower loan-to-value offer, since most mainstream lenders want at least 70-85 years remaining at the end of the mortgage term. Below around 60 years, mortgageability narrows sharply.
Who pays for a lease extension?
The leaseholder typically initiates and pays for the extension, including the premium payable to the freeholder (which includes marriage value below 80 years, see our short lease guide) plus both parties' legal and valuation costs.
Does owning a share of the freehold change this?
Yes, significantly, if you (with other leaseholders) own a share of the freehold, extending your own lease to a very long term becomes far simpler and cheaper, since you're effectively both parties to the transaction. This is a common reason buyers specifically seek out share-of-freehold flats.
Are all leasehold flats affected equally by these factors?
No, a flat with a very long lease (250+ years) and modest, fixed ground rent behaves in the market almost like a freehold property. The value impact is concentrated in short leases (especially under 80 years) and problematic ground rent structures (doubling clauses, or rent tied to a percentage of property value), not leasehold ownership in general.
In summary
- Freehold means owning the building and land outright; leasehold means owning the right to occupy for a fixed term, with ground rent and service charge obligations to a freeholder.
- Lease length under roughly 80 years triggers "marriage value," making extensions significantly more expensive than extending well above that threshold.
- Ground rent structure (especially doubling clauses) can affect mortgageability and value independently of lease length.
- An automated comparable-sales estimate can't see your specific lease terms, treat it as an area baseline, not a substitute for a leasehold-specific valuation.
If you're comparing two leasehold flats that look identical on paper, ask for the lease terms specifically, remaining years, ground rent amount and review structure, and service charge history, before assuming a comparable-sales estimate has captured the full picture. It hasn't, unless it's been told to look at lease length directly.
This is also why two "identical" leasehold flats sold a year apart, in the same block, can show very different price movements even in a flat overall market, the lease simply got a year shorter for one of them, and depending on where that year fell relative to the 80-year threshold, the effect on value can range from negligible to substantial.
For how tenure fits alongside the other factors that move a valuation, see our full guide on how UK property valuations work.
Three related ownership situations worth knowing about: commonhold as an alternative to leasehold, Right to Buy valuations, and valuing a shared ownership property.
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