The 80-year threshold – urgency / education
Why 80 years matters
The 80-year mark is not an arbitrary milestone – it is the point at which the cost of extending your lease increases substantially. Once your lease falls below 80 years, a calculation called “marriage value” comes into play. This means the freeholder is entitled to a share of the increase in your property’s value that the extension creates, which can significantly increase the premium you pay.
Below 80 years, many mortgage lenders become unwilling to lend against the property. This limits your ability to remortgage and makes your property less attractive to buyers who need a mortgage. The lower the lease drops, the more acute these problems become.
We recommend starting the process while you still have 85 or more years remaining. This gives you time to negotiate without pressure and avoid the marriage value threshold entirely.
The 80-year trap
Once a lease falls below 80 years, marriage value applies and the freeholder can claim a share of the uplift in your property value. On a property worth £400,000, this can add thousands to the premium you pay – a cost that rises every year you delay.