The television personality is already looking to move out of the Hertfordshire house she shared with her former partner of 11 years.
The five-bedroom property, which the couple worked on for several years, has an asking price of £2.5m, according to The Mirror.
Klass and Quinn separated after six months of marriage back in April, reportedly on her 34th birthday.
The pair have two daughters together, 14-month-old Hero and 4-year-old Ava, who Klass has not yet told about the split.
The Hear'Say singer is currently set for an awkward reunion with her ex when their friends Marvin Humes of JLS and Rochelle Wiseman of The Saturdays marry in July.