Single Family Home for sale by owner in Onset, MA 02558. Sorry- they do not allow you to post here without filling out the bedroom/bathroom part filled out. It could be made into a 4 bed/2bath home. It's up to you.This is an old victorian carriage house in excellent condition with beautiful paint job and new architectural roof. It is basically empty and needs to be built to your specs. It is a great place for a family home, a business like a gallery down and a home upstairs. It is a minute to wa... See site for full property details.