In 2015, the office and business center Dixi was completed at the Tikkurila railway station in Vantaa, Helsinki metropolitan area. Dixi is the landmark of Tikkurila area, where otherwise a flat style of construction has been favored. The complex rises high above the neighborhood offering great working spaces for a significant number of businesses.

Dixi lies in a narrow plot right beside the railways with the railway terminal of Finland’s third heaviest traffic flow. The adaptation of such a large building to a very tight place was an urbanistic and architecturally significant accomplishment. Architects at Lahdelma & Mahlamäki Oy took a challenging task along with the structural engineering office to be able to design the complex with strict environmental requirements. Dixi awarded the Platinum LEED environmental certificate in 2014 as Finland's first shopping center. Also, Finland's largest, over 6,000 square meters large green roof on top of the parking facilities, belongs to Dixi complex.

 In any conditions, no interruptions are allowed to the train traffic. Therefore the building phase and the future maintenance was carefully planned from the start. Rostek access solutions solved the problem of how to maintain the building on the train track side of the complex. Nearly 600 meters of climbing and horizontal monorail runs in height enabling a BMU to access the facade by the power of Roslift 500.  Rostek tracks allow the green roof of the parking building to flourish in peace.