The Stone Oak area is a popular location for new construction of large homes.
Houses in the Stone Oak area tend to be newer construction and have more rooms and square footage than older housing stock. Credit: Bonnie Arbittier / San Antonio Report

Homes are getting larger in Bexar County, according to the U.S. Census Bureau’s American Community Survey 2016 estimates.

Zip codes that have high percentages of housing units with nine rooms or more in 2016 form a distinct arc outside Loop 1604 on the city’s North Side, where most new construction is occurring.

The map below shows the percentage of occupied housing units that have nine or more rooms, according to the data. The number of rooms counted by the survey includes living rooms, dining rooms, kitchens, bedrooms, finished recreation rooms, and enclosed porches, but does not include bathrooms.

More than 35 percent of the housing units in 78266, just north of Loop 1604 and west of Interstate 35, have nine or more rooms, – the highest percentage in the city – while 33 percent of homes in 78015, which includes Fair Oaks Ranch, have nine or more rooms.

More than 9 percent of housing units in Texas have upwards of nine rooms, though the median number of rooms for houses in the state is five. Nationally, 10 percent of homes have nine or more rooms. Bexar County is slightly under the state and national average, at 8.3 percent.

San Antonio’s smaller housing units, those with three rooms or fewer, appear in many of the city’s zip codes inside Loop 410. The 78229 zip code, an area near the South Texas Medical Center with many apartments, has the largest percentage of three-room housing units, around 31 percent.

Since 2010, the percentage of housing units with nine rooms or greater rose more than any other category in Bexar County, growing by 1 percent. Over the same time period, the percentage of housing units with three rooms rose by just 0.1 percent.

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Emily Royall

Emily Royall is the Rivard Report's former data director.