Orioles great Cal Ripken Jr. is taking a new approach to selling his Baltimore-area home: Putting it up for auction.

According to a listing on DeCaro Auctions’ website, Ripken’s 24-acre Reisterstown estate will be auctioned at 11 a.m. on May 12 at the property.

Ripken had originally put the property, at 13301 Dover Road, on the market for $12.5 million in September 2016. The price dropped to $9.7 million in April 2017, and was taken off the market altogether in August, real estate listings show.

Now, the home will go to “the highest bidder WITHOUT RESERVE,” according to the DeCaro website.

The home has six bedrooms, 10 full bathrooms and five half-baths. It also features an in-home theater, pool and pool house. Also on the property is a gym with a full-size basketball court, batting cage, training room and locker room. And, naturally, there’s a full-size baseball diamond designed by Ripken.

If you’re interested in getting a peek at the Iron Man’s home, open house previews will be held every Saturday and Sunday from 1 to 4 p.m., beginning April 14. You can also make a private appointment by calling the DeCaro offices at 1-800-332-3767.

According to state records, Ripken bought the property in 1984 for $215,000. The primary home was built in 1987.

Oh, and the Baltimore sports royalty doesn’t stop there. Ravens great Ray Lewis had listed his nearby Tufton Avenue home for sale last year, too. Originally listed for $2.95 million, the listing was removed in January, online real estate records show.

— Ellen Fishel

Baltimore Sun reporter Sean Welsh contributed to this article.