“We also always recommend an independent survey. There’s a big difference
between the bank surveyors for mortgages and independent listed building
surveyors. They don’t cost a fortune – typically £750 plus VAT for a two to
three bedroom terrace.

“Mortgage companies are looking at what the house is worth whereas these
surveys are very detailed.

“You would then get a 20-page report and it would include a brief summary
of costs. It’s really very revealing. It is very important to find out what
you are going to be in for.”

Mr Mott, who founded ProjectBook,
a vetted register of craftsmen and contractors, said it was a common mistake
to think listed building consent applied only to the outside of the
property. It applies to the whole structure.

Another subject often overlooked is conservation areas, which can include
rules known as Article 4 directions that restrict changes to doors, windows
and railings and other features within a designated area.

And when it comes to funding, reduced VAT rates may apply to alterations to a
building but full VAT rates can be added to repairs.

“Obviously, doing these things is a labour of love,” Mr Mott added. “It’s
about Britain’s long love affair with the past and I think people see it as
a challenge.”