Real estate developer Mitsui Fudosan Co. is in the final stage of talks to buy a stake of about 33 percent in Imperial Hotel Ltd. for about ¥90 billion, which would turn it into the landmark hotel's top shareholder, informed sources said Friday.

Mitsui Fudosan is considering acquiring the shares from Kokusai Kogyo Co., which owns about 40 percent of the hotel operator.

The developer has been negotiating the deal with Kokusai Kogyo's parent, U.S. investment fund Cerberus Capital Management, the sources said.