Fears that A-listed castle in Dumbarton could become drunken party venue Dalmoak Castle was put on the market for £1.7million in 2016 but the asking price was slashed to just £675,000 in 2019. Dalmoak Castle near Dumbarton could be transformed into an exclusive holiday rental. (Image: Lennox Herald) Get the stories that matter to you sent straight to your inbox with our daily newsletter.Invalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Sometimes they’ll include recommendations for other related newsletters or services we offer. OurPrivacy Noticeexplains more about how we use your data, and your rights. You can unsubscribe at any time.