Building in Bakersfield

[Rich A.]

I'm currently looking to build on a existing lot that is zoned R2 for multifamily.  I already have a duplex on the lot, but have plenty of room to add another unit.  The problem is that I am new to the construction process.  Does anyone have any information on the building process?  Do I have to apply for permits first?  Is there a current price per square foot for new builds in Kern County?  TIA for all of your help.