Building cost for fourplex, duplex

[Elvin William]

Hello, the multi family house here in Sacramento is expensive. I'm thinking of buying land and building 4plex from ground up. Did any one build any duplex or 4plex from ground up? Is it worth it or buying existent duplex or 4plex is a better option? In Sacramento area. Duplex is going around $650k while 4plex going around $1million. I think I can build it for around $650,000 plus land in a great area. Land is around $250k. Any feedback will be appreciated.