A survey by comparison website finder.com.au showed that 47 per cent of house hunters decide whether or not they like a property as soon as they step inside, with several property features cited as a massive turn-off.
A staggering 87 per cent of participants said they would be put off buying a property if there was mould present.
This was closely followed by structural decay, with 84 per cent of participants saying this would prevent them from buying a home.
Eighty-three per cent of participants said a damp smell would put them off buying a home, while 83 per cent said signs the current owners are indoor smokers, such as yellowing walls, would also be a deterrence.
Rounding out the top 10 was a dirty bathroom (54 per cent), peeling paint (49 per cent), an out-of-date kitchen (45 per cent), signs of a pet dog or cat (42 per cent), worn carpets (36 per cent) and a messy interior (35 per cent).
Other discouraging features that made the list included an untidy garden, old-fashioned wallpaper and dirty windows.
Bessie Hassan, spokesperson at finder.com.au, said the results indicate that there are many features that house hunters cannot simply overlook.
“Some of these property turn-offs can significantly dwindle the number of buyers interested in a property,” she said.
“Mould can cause major issues, particularly for residents with respiratory problems, so it’s not surprising it’s at the top of the list of things buyers steer clear of."
She added: “Some buyers are searching for a house where they can move straight in and don’t have to lift a finger, but for those who don’t judge a book by its cover and are prepared to get their hands dirty, you could find your diamond in the rough.”
Interestingly, the research found buyers would be put off if they saw a motorbike or ute parked outside the property – however, a BMW makes a good impression.