Seeking Duplex/Fourplex Builder Recommendations and Rough Cost Per Sqft

[Michael S.]

Seeking recommendations for a duplex or fourplex builder in the Phoenix area and the construction cost per square foot.

Four years ago rough estimates were at $100 sqft, now I'm seeing about $200 sqft with another $50K for site preparation.  Most of them are estimating a construction time of 12-18 months.

I have a few homes that are on large lots that should probably be further developed to maximize return.

Thank you