Several developers are constructing luxury senior housing in Manhattan and trying to tap a new market:

Senior housing has traditionally been suburban-focused because land is so much cheaper outside cities, and developers hadn’t seen a big enough market to justify paying more, and charging more, for urban locations near transportation and nightlife, Knott said. The aging members of the massive baby-boom generation helped change their minds. Now, he said, many living in cities have the means to pay a premium to remain in familiar environments.

And many will need special care. In New York state alone, about 460,000 residents aged 65 and older are expected to be living with Alzheimer’s-related dementia in 2025, some 18 percent more than there are today, according to the Alzheimer’s Association.

To serve the wealthiest of them, senior-housing developers are taking cues from their tony-apartment building counterparts and putting extra emphasis on finishes and flourishes, to make their facilities look like the places residents left behind…

It is, of course, a rather small group of any age or mental ability that can handle the monthly rents these kinds of places will command. They’ll start at $12,000 at the complex that Maplewood Senior Living and Omega Healthcare Investors Inc. are putting up on Second Avenue and 93rd Street. Some will top more than $20,000 at the building Welltower Inc. and Hines are about to break ground for on the corner of 56th Street and Lexington Avenue.

The top 10% ages as well.

If this catches on, will it make it even harder to construct senior housing for average Americans (those who lived as adults around the median household income)?

I had a somewhat radical thought: many community leaders suggest that their residents should be able to age in their community, if they so desire. Would it be possible to set aside plots of land to be used for senior housing? The community would not necessarily have to designate what kind of housing is placed there but setting aside or zoning certain land might take away some of the market-rate pressure for land. Communities and developers regularly do this for other important uses such as parks or schools. Why not get out ahead of the aging population and make a tangible contribution to allowing senior residents to stay?