WASHINGTON — Ivanka Trump, who is weighing a prominent role in her father’s administration, is planning to move with her family to a mansion in the exclusive Kalorama section of Washington, two people familiar with the decision said Wednesday. The house was previously owned by a Latvian-born financier with extensive investments in Russia and ties to a Russian opposition leader.

Ms. Trump and her husband, Jared Kushner, a close adviser to President-elect Donald J. Trump who is expected to be an influential voice in the administration, have chosen a six-bedroom, 6,870-square-foot house just around the corner from President Obama’s new home. The newly renovated house, with its sleekly modern décor, sold for $5.5 million in December, the people said, insisting on anonymity because the transaction was private.

The home was previously owned by Dan K. Rapoport and his wife, Irina, according to property records filed with the District of Columbia. Neither responded to emailed requests for comment.