@Frank Pyle I am at $175/ft on a 36,000 SF over covered parking 18 Unit condo building I am preparing to break ground on in Philadelphia. This is self performed with a 10% project management fee which is lean. I don't see how you are building anywhere in this country for $80/ft. I highly suggest you take a closer look at your numbers, particularly for a multi-family building which has added costs compared to SF homes practically everywhere in this country between STC ratings, fire ratings, storm water, fire suppression requirements etc.
The last thing you want to do is turn over to a bank a half baked construction budget and then come back to them with substantial increases because they won't take you seriously. Doesn't help if your assumption is $250K/unit out sale but are only arriving at $7.9M as complete (10%+ under target).
As a 36 Unit condo building, there should be a higher carrying cost assumption as well, particularly with the interest burn rate. Very difficult to sell condos until at least 50% are under contract in order for the units to be warrantable. At $250K/door I don't see how you are finding buyers unless these are warrantable units. There are ways around this in some instances with phased deliveries but it sounds like this is a single phase build.
Again, start with the build costs, everything else is secondary.