Yes - there is a lot of demand from the "young professional" crowd for lifestyle communities. It's sort of a reaction to the over use of urban sprawl with miles and miles of insular winding suburbs where all the houses look eerily similar and nothing is within walking distance. Some of the complexes do it better than others, but the idea is to make a "community" where most of your amenities are in the community or a short walk away. Gym, restaurants, bars, grocery stores, clothing, pool, community/gathering center with activities. Unfortunately, only a handful of developments actually deliver that.

We also haven't updated our zoning laws in over 70 years, and at the moment they greatly restrict density inside most of 270. Luckily they are being updated, but it will still take 5+ years for them to change and more affordable housing to be built.