Multifamily Construction Cost

[Jordan Concepcion]

I know that it is always best to get a contractor to tour the units, but are there any "rule of thumbs" anyone uses for upgrading units?  Here are some examples.  I know I'm asking for ball park numbers but any info would help.  If it counts for anything, I'm located in San Diego just in case construction costs vary. Also some recommendations of some good and price friendly contractors in San Diego would always be good.  Thank you in advance!

1. Cost of laying new flooring per SF (vinyl wood plank or carpet)

2. New counter tops (granite or linoleum)

3. Paint

4. Price to turnover a unit