It's a curious sight.

A real estate listing for a home in San Francisco's Tenderloin includes photos of a room lined with jail cells containing bunk beds.

The prison decor may give you pause, but once you get the backstory on 606 Ellis St., selling for $1.88 million, it makes a bit more sense. Listing agent Nozomi Ogihara of Better Homes and Gardens explained the property is owned by a Japanese businessman who had fun creating Alcatraz-themed accommodations for Japanese tourists.

"For Japanese people... if you come to San Francisco, you have to come to Alcatraz," said Ogihara.

The owner was reportedly making up to $10,000 a month on Airbnb rentals before the city changed its regulations. He decided to stop renting and is now selling the three-bedroom, two-bathroom home with 1,635 square feet.

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While the downstairs is set up like a hostel, the upstairs serves as a single-family home that has been given an update. It has new floors and fresh paint. The kitchen is basic with new stainless steel appliances and a bathroom is tiled in a blue mosaic.

The property between Hyde and Larkin is one of only a few single-family homes in the densely populated Tenderloin where multi-level buildings line the streets.

Ogihara said the owner had plans drawn up for a second story on the property, but these still need to be approved by the San Francisco Planning Department and there's no guarantee they'd make it through the process.

Amy Graff is an SFGATE producer. Email her at agraff@sfgate.com.