The entire community of Del Sur is a must-sell situation, whether the developer realizes it yet or not. This is a planned community. To even get to that point requires most of the entitlement process to be completed.
The entitlement process includes all the little sundry studies, surveys, planning, environmental impact reviews, and subdivision processes. Once entitled, a parcel only needs payment of the bonds and fees and physical improvements to finish them – a finished lot consisting of a site with grading, streets and utilities stubbed to the site; everything you need to build the structure and sell it off as a home.
They probably haven’t completed but a fraction of the roads and utilities and rough grading yet, but they’re in way too deep to just walk away. They need builders or investors to step up and take those parcels off their hands, ’cause with the current trends the carrying costs will eat them alive before the market comes back.