The BETA building with 9 storeys and 3 underground levels was the 8th BB Centrum building completed and it was put into operation in 2005. The design of the BETA building comes from the architectural studio Aulík Fišer architekti and the general contractor was Hochtief. The building is certified according to BREEAM (BRE Environmental Assessment Method), a leading international method used to evaluate buildings from the perspective of their sustainability, and it received a certificate on the level of Very Good. In addition to modern materials and technologies, the project is interesting due to its flexible internal arrangement, thanks to which the office spaces offer a high quality with an effective distribution of the wide floors, which are capable of offering flexible offices to the tenants. The building has an imposing atrium, which contributes to the excellent lighting conditions in the offices. The building also has practical retail spaces on the ground floor, which are very popular within BB Centre. Just like with other BB Centrum buildings, BETA has a rooftop terrace with relaxation areas. The largest tenants include ONLINE CZECH REPUBLIC, SAP ČR and the D.A.S. insurance company.

Clifford Chance has supported CBRE Global Investors with its legal services. Komerční banka, a.s. provided the financing of the acquisition. It is the second building that the company has repurchased back into its portfolio. In October 2014 PASSERINVEST GROUP purchased the ALPHA building from the investment company INVESCO Real Estate.