Buy land build home instead of buying existing

[Joshua Oclaray]

I live in Bothell WA, it's a booming city about 30 mins northeast of Seattle. At this point I'm sort of priced out of the market. So my question is, would it seem economically smart to buy a vacant lot, use a home builder to build a house and possibly put and ADU (accessory dwelling unit)on the property as well to cash flow? I'll live in the main house and eventually rent it out. Any pointers about going this route is greatly appreciated. Things like additional costs for utilities being brought to the home, etc. thanks!!