Nine in ten leaseholders regret buying a leasehold house, and six in ten believe they may have been mis-sold by developers or their recommended solicitors.
The new research claims buyers are living a 'leasehold life sentence' as spiralling ground rents and permission fees make their houses unsellable.
Here, we take a look at the report's findings and explain what the government is doing to help leaseholders.
The report claims that almost half (45%) of more than 1,103 people surveyed didn't know they were only buying the rights to a lease until it was too late.
The report also found:
As a result, nearly two-thirds (62%) of leaseholders feel like they have been mis-sold their property.
'But sales assistants aren't bound by the Estate Agents Act 1979, leaving buyers vulnerable and without protection, which explains why so many feel like they were mis-sold.
'It's time we listened to this and sought a robust solution for all those affected, unable to sell their homes, and serving a leasehold life sentence.'
Propertymark's research also found that one in 10 homeowners have had to pay a charge to make cosmetic changes to their property. These charges are commonly - if not formally - known as permission fees.
On average, freeholders charged respondents £1,422 for permission to install double glazing, £887 to change kitchen units, and £689 to replace flooring.
Questions were also raised around service charges. If you buy a leasehold flat, service charges cover maintenance of any communal space or shared assets such as a roof or guttering.
However, standalone leasehold houses don't have communal areas, and this has resulted in service charges instead being charged to maintain outdoor communal areas on estates.
More than half (51%) of homeowners who responded to the NAEA survey said that between council tax and service charges, they feel they're paying twice for the same service.
Which? conducted the largest research project of its kind into issues surrounding new-build homes earlier this year.
During the course of our research, Which? received 192 letters from leaseholders, covering leasehold issues with 19 housebuilders, including seven of the largest 10 developers in the UK.
At this stage it remains unclear when these changes will come into force.
While the government also pledged to 'make it cheaper and easier for existing leaseholders to buy out their freehold', there are currently no indications around how specific redress would work for those with onerous clauses.
The Housing, Communities and Local Government (HCLG) Committee recently launched an inquiry into the progress of the government's leasehold reform measures, looking in particular at the issues facing existing leaseholders.
The deadline for submissions is next Friday (14 September), with the committee inviting submissions on: