Dallas-based Hillwood Properties has confirmed plans to build the tallest building in the Dallas area since 1988. The developer, also building Fort Worth’s AllianceTexas project, has already begun work on a 43-story tower in Victory near downtown Dallas. The tower, the tallest building to hit the Dallas skyline since Cityplace, will be designed by architect Kohn Pedersen Fox. The building will stand tall at the intersection of Olive Street and Victory Avenue. Included in the plans is the 120-room Mandarin Oriental Hotel, 90 condominiums and 275,000 square feet of office and retail space. The first 11 floors of the planned skyscraper will be the Mandarin, marking the international hotel operator’s first Texas property. The luxury hotel will include a spa and a few restaurants and bars. Condos priced between $850,000 and $6 million will occupy the building’s top floors, above several floors of office space.