Cadence Park - 1st ed.
As you can see, Lennar pretty much took all of the good (western) lots in the neighborhood. If you are looking for a single-family home in the Great Park Neighborhoods, though, I wouldn't wait. There are pretty much only 200 single-family homes planned in the future (versus over 3,100 condominiums). The chances that Lennar will build them are almost 100%.
Other builders not listed on the map:
Evoke by CalAtlantic Homes - 56 condominiums
Deco by K. Hovnanian Homes - 93 condominiums
Prado by KB Homes - 87 condominiums
Duet by Pulte Homes - 96 condominiums
Cabaletta by Richmond American Homes - 70 condominiums
Muse by Taylor Morrison - 60 condominiums
As time passes, I expect to be able to map these communities. The map above itself is a bit outdated but includes information that I am deem appropriate. Also, square footages will probably go up for all of the developments (probably around 500 sf would be a good number).