Strong demand in Texas also continues to draw developers to the large sites available around San Antonio. Relative to the size of the local population, San Antonio is now in second place on the list of metropolitan areas with the highest number of garden-style apartments under construction, according to CoStar.

San Antonio has been a top market for garden-style apartment construction throughout this development cycle, according to RealPage.

The areas that attract garden-style apartment developers may be older cities, like Columbus, which is the third on the list of metropolitan areas with the highest number of units under construction relative to the size of the local population, according to CoStar. Columbus still has relatively inexpensive sites on which to build.

"These are chiefly markets with plenty of land," says CoStar’s Rybczynski.

The metropolitan area around Kansas City is number four on the list of places where developers are building the most garden-style apartments, relative to the size of the local population, according to CoStar.

The area has suburban sites where developers can build apartments that aren’t too far from the area’s job centers. “The vast majority (91 percent) of garden units are in non-urban submarkets,” says Rybczynski.

The area around Raleigh, N.C.—the Raleigh-Durham Research Triangle—includes several top colleges providing workers for a growing technology economy. There is also a lot of relatively inexpensive land where developers can build new garden-style apartments.

That’s why Raleigh made number five on the list of places where developers are building the most garden-style apartments, relative to the small size of the area’s population, according to CoStar.

Developers are now building more garden-style apartments in Dallas than any other metropolitan area in the U.S., in absolute numerical terms, according to CoStar. However, relative to the size of this large city, all that construction still adds up to fewer new units per capita than in areas like Raleigh or Kansas City.

Strong demand and available land have kept developers building garden-style apartments in Dallas throughout this real estate cycle. Dallas is number two on the list of places where developers have opened the most such units since 2010, according to RealPage.

In absolute numbers, the suburban towns of Northern New Jersey are number five on the list of markets where developers are now building the most garden-style apartments, according to CoStar. These densely populated towns are unusual—the cost of development sites in Northern New Jersey is relatively expensive compared to the other top markets for construction.

“Northern New Jersey is also an outlier in that a recently built garden-style unit goes for about the same rent as recently built mid-rise unit,” says Rybczynski. “So, it would seem that Northern New Jerseyians prize the low-density, while being able to commute to New York City.”