There's a thread on 55places where they tout more 2 story homes in age restricted communities. I thought it was nonsense and said so early on. As the responses grew, I took the liberty of promoting the new K. Hovnanian development and how awesome their Manor floor plans appear. You can read it here.
Homebuilder plans 140 units for long-vacant Sun City tract http://www.yourwestvalley.com/suncity/article_94a5b23e-f995-11e4-acac-0f7ed5eb2271.html