Riachi At One21 Apartment Homes features one bedroom, two bedroom, and three bedroom apartments for rent in the prestigious North Plano/Frisco area, just around the corner from shopping and fine dining. Riachi Apartments BRAND NEW Phase 2 is now open! Minutes from Rt. 121 and the Stonebriar Centre, your brand new apartment at Riachi At One21 boasts faux bamboo flooring, plush frieze carpeting and deep garden tubs. Accented by professionally landscaped grounds and amenities such as an on-site fitness center, Wi-Fi a viewing room, and a gorgeous resort style pool that includes an outdoor kitchen Riachi At One21 gives you a serene and elegant environment where you can retreat and relax from the demands of city life. Welcome home to Riachi at One21, the soothing side of city living.