My mother wanted to buy one of the lakefront townhouses when they were first built about 20 years ago. They were $80K and my father felt the move was "risky". He felt no one would want to buy when they were ready to sell.
Well, those "risky" townhouses are currently selling for $350K+ depending on the upgrades.
I'm not sure what development you are looking into. Is it waterfront? If so, while no one can predict the real estate market anywhere in five years, you should have a good change at a decent return.
If there is a current association have a good look at their reserves so you aren't socked in the near future by deferred maintenance. Check the taxes - condo taxes are approximately half of SFH taxes of the same value. Check the comps and try and locate a good real estate agent familiar with condo sales. Look for a good real estate attorney familiar with condo sales to go over everything you and the realtor missed.