Hundreds of homeowners across the South West could find that they are stuck in a property trap.
A hidden lease clause - called doubling - has left many with an annual ground rent that doubles in price every few years. It makes their homes far less attractive when it comes to selling on.
George Muirhead from Swindon was horrified to find out he is a victim after he discovered his ground rent doubled every 10 years for 50 years.
He signed a contract with developer Taylor Wimpey. He says the value of his flat is continually decreasing and putting off any potential buyers.
Taylor Wimpey built several new builds from 2007 to 2011 which have been sold with a lease clause that was rarely spotted - the ground rent doubling every 10 years.
However, Sir Peter Bottomley MP for Worthing claims Taylor Wimpey weren't the only ones.
He has raised the issue in the House of Commons, seeking a change in lease laws and compensation for the victims.
A facebook group created by campaigner Katie Kendrick has over 1500 members who have fallen victim to the property trap. She says "they are literally prisoners in their own homes".
Taylor Wimpey have released a statement on ground rent and will be conducting a review of the leases in order to help their customers. This should be completed by the end of April.