For about $20 million, you could be Warren Buffett's landlord

• The 15-story Kiewit Plaza could fetch $20 million in a sale, according to Omaha.com.
• Buffett's Berkshire Hathaway rents a floor of the building.
• For Buffett-watchers, taking a selfie on Kiewit Plaza has become a ritual during Berkshire's annual meeting weekend each spring, Omaha.com said Monday.

For an asking price of $20 million, someone could become Warren Buffett's landlord.

The 15-story Kiewit Plaza in Omaha, Nebraska, recently went up for sale, and that could be the going price, according to Omaha.com. The 176,000-square-foot office tower is home to Buffett's Berkshire Hathaway as well as Kiewit, a construction and mining company that built the structure in 1961. Berkshire takes up a floor of the building. It was previously reported that daughter Susan Buffett's Sherwood Foundation was moving out of the building to locate elsewhere.

Kiewit, which has 20,000 employees, is building a new headquarters in another part of the city and will move out in 2021, the report said.

Kiewit Plaza, Berkshire Hathaway headquarters, in Omaha, Nebraska.

Michelle Bishop | Bloomberg | Getty Images

But for Buffett-watchers, taking a selfie on Kiewit Plaza has become a ritual during Berkshire's annual meeting weekend each spring, Omaha.com said Monday.

The building, which has a fitness center and a restaurant, could rent to new office tenants or be converted to apartments or high-end condominiums, the report said.