A so-called toilet closet, with a walled-off commode, has become a popular feature in master bathroom suites in new houses.

But Caruso Homes has taken that concept to a new level — offering, for those who want them, two toilet closets per master suite in the $450,000-to-$600,000 homes in phase two of its Windsong development in Upper Marlboro.

The Princeton model home (Caruso Homes)

The feature means no more sharing, no more waiting and no more arguing about the position of the toilet seat.

Buyers “are blown away — it’s a feature you’d normally see in a multi-million-dollar home,” said Tom Baldwin, director of sales at the Crofton-based firm, adding that the toilets are on the opposite sides of the room. “You have your toilet space and I have mine.”

Equity Homes built the first 10 houses in the community off South Osborne Road in 2008. But the firm could not move forward with the next phase and sold the development to Caruso in February, Baldwin said. James M. Sack, a McLean-based lawyer who represented Equity Homes, said the firm went out of business.

The kitchen in the Palisades model home (Caruso Homes)

“The community had been neglected for a few years and it needed an indepth facelift,” Baldwin said. “We’re a high-end builder and we want to make sure the grass isn’t three feet tall. We installed brick pillars to make the buyer feel more a sense of arrival when they pull up to the community.”

Caruso plans to build 31 homes, ranging from 3,000 to 6,500 square feet. The design will be somewhat different from the houses built by Equity Homes.

The Colonial-style houses include a brick front, two-story foyer, kitchens with granite countertops and stainless steel appliances, energy efficient windows and extra insulation.

Buyers will be able to personalize some features, including extending the kitchen island repositioning a cabinet.

The bathroom in the Princeton model home (Caruso Homes)

Besides the two toilet rooms, master suite bathroom upgrades include a large shower with two entrances and two shower heads. “A glass window separates the two shower heads,” Baldwin said.

Other options include a finished basement, morning room, an in-law suite and a rec room.

Windsong has no community amenities, such as a swimming pool or a tennis court. The idea, Baldwin said, is to give homeowners lots ranging from 2 to 8 1/2 acres, large enough to accommodate either of those features.

Construction of the new houses will take about six months, Baldwin said.

The community is near the upcoming Westphalia Town Center, a mixed use-development that will include 450,000 square feet of retail. Construction of Westphalia is expected to start this month.