This is just my opinion (albeit from 30 yrs experience) but I see several red flags in your question that
Zero down mtgs are a thing of the past, is this seller financing? Be very careful there.
As far as price per sq. ft... It varies all over the map in that zip code depending on the location.
I would be more concerned over whether it is, in fact worth $165K or not and the zero down financing.
If you do not have an agent that knows that location well - get one to give the exact address to, then a more accurate price can be given. Other factors to give much consideration to are condition, Condo Fees (they can be very high - and do they include any utilities? ) taxes, and the financial condition of the mgmt company.
If you are buying just to rent out I'd tread lightly there as well, and I can tell you for sure there is not a mtg company around that will do investor loans with zero down. If it is seller financing at zero down, that means he or she couldn't sell it or rent it either and are looking for creative ways to dispose of it.
You need professional assistance so you don't make a huge financial mistake.