It can’t be said enough but if you are buying new construction in Olympia WA or anywhere in the country, get a home inspection.
A new home is NOT perfect. Most common issues with new construction are pipes and vents that are not connected. These things can happen. It doesn’t mean you have a bad builder or the builder intentionally didn’t connect the pipes. Sometimes these issues are missed. Don’t rely on city and county inspectors to discover these things, either – they are human, too.