He's also the developer and this is the first house in Phase II of this development.

Right now, land (unless in a hot market) takes a special type of buyer/developer to turn it into money, so you're better off finding the thing the people with the money want. land tends to sit a long time...

Building a new location, development profit., B. 

Quote from @Shelan Davis: I have house under construction in Cape Coral with Whitestone Developments.

I think there needs to be a change in leadership and a pro-development or up-zoning attitude.

You may also want to check the Columbus OH market - great macroeconomics with lots of job and population growth along with major companies developing here that drive strong rental demand. 

If you are not attached to the duplex, could be a good time to sell to developers who want to convert to individual condo units.

Quote from @Bear Geiger: At Little Bear CreekProperties, we specialize in developing large tracts of land into individuallots for home builders in the Raleigh, NC area.

My developer client successfully defended the initial challenges and settled on this having PE rights, so he shifted the site plan to avoid the issue.

If we do a Self Storage development we expect a 400% COC return.