Roman Abramovich is just $23million away from owning ALL of an historic Fifth Avenue mansion in New York Russian billionaire paid $75m for the majority of the mansion last month Two people stand in his way of having free reigns of the entire building He has bought a duplex for $10-15m but owner won't leave for a year Final owner is demanding $23m - $8m more than Abramovich has offered It's one of the most exclusive addresses in New York City and Russian billionaire Roman Abramovich is just short change away - relatively - from owning it. The steel tycoon and owner of Chelsea Football Club has almost got his hands on an entire mansion on Fifth Avenue - he just has two more apartments to acquire and another $23million to stump up. The 46-year-old paid $75 million last month for a majority chunk of historic Berwind Mansion at 828 Fifth Avenue. Moving in: Billionaire Roman Abramovich and Dasha Zhukova are buying a Fifth Avenue home Prime position: The Fifth Avenue property overlooks Central Park He has been busy inking deals to acquire the remainder of the building so that he can eventually create his own lavish entire mansion overlooking Central Park. Two people still stand in the way of that dream however. One will not leave for another year, while a long-time resident is demanding more money, according to PageSix.com. A fifth-floor apartment, which according to public records has been owned by Eugenia Olazabal since 1981, is causing the billionaire problems. PageSix.com claims the Russian has offered her $15 million but she is holding out for $23 million. Meanwhile, fashion designer Adolfo Sardina, who owned a duplex in the mansion, caved in to the billionaire's offer. Exclusive: The Fifth Avenue home was built for a coal tycoon in the 1890s Ornate: The Fifth Avenue building is based on an Italian Renaissance design According to PageSix.com, Abramovich offered between $10 million and $15 million to buy Sardina out and the wealthy men 'came to an agreement.. but Adolfo insisted he needed a year to move out, which Abramovich agreed to,' the source said. If he achieves full-ownership of the Rennaissance-stle mansion, Abramovich will be fulfilling the dream of the building's late owner, real estate developer Howard Ronson. Ronson turned the block into apartments in the 1970s but had planned to return it to its original mansion state. He died in 2007. Abramovich, who is worth $10.2 billion, will share the eight-bedroom home with Dasha Zhukova, the mother of his two youngest children. He set a new record for the highest amount ever paid for a co-op in the city, when he sealed the multi-million-dollar property deal, according to the New York Post. Family: Dasha is the mother of Abramovich's two youngest children Extravagant: Abramovich owns the world's largest yacht, Eclipse, which cost him $250 million Finished in 1896, the luxurious Fifth Avenue building was once described as 'about as close to Versailles as residential New York has to offer'. The building, designed in the Italian Renaissance style and built for a coal baron called Joseph Berwind, overlooks Central Park zoo and has a full-time doorman, according to Street Easy. Abramovich's latest home includes a penthouse, triplex and maisonette in the decadent building which is made up of five apartments. He may not have the whole building just yet, but Abramovich will have a 15,080 sq ft home complete with wine cellar, ballroom, ten bathrooms and roof top terrace with views over the park. 'Part of it is buying a dream of eventually owning one of the greatest pieces of real estate of New York, a mansion on Fifth Avenue directly across from one of the better parts of Central Park,' Pam Liebman, president of Corcoran Group, told the Wall Street Journal. Paradise: The billionaire also has a luxury home in St Barts, where he holds lavish New Year's Eve parties City living: Abramovich also owns a sprawling London mansion Many original features of the grand home remain, including gilded flowers, and ornate wood carvings and plasterwork. Interior designer Alberto Pinto is behind the makeover of the triplex, which has a 34ft ballroom with Louis XV-style plaster ceilings and ornate angels carved over the fireplace. The Fifth Avenue home will be perfect addition to Abramovich's luxury portfolio, which already includes a string of luxury homes in cities across the world, private jets, and the world's largest yacht, Eclipse, which cost him $250 million in 2010. Read more here: Billionaire close to owning entire Berwind Mansion