Which are the prime office corridors in Guatemala City and what is Zona Pradera?

The prime office corridors are Zones 10, 14, 4 (Cuatro Grados Norte) and 13 (Américas). The benchmark complex is Zona Pradera, on Boulevard Los Próceres, Zone 10: 5 interconnected towers (four of 18-19 floors and one of 10), completed in 2008, with more than 2,500 parking spaces across 6 basement levels, more than 350 companies, some 1,500 external visitors a day and a helipad on Tower I, according to Spanish-language Wikipedia and the complex itself. Active brokers with public inventory: Colliers Guatemala and CBR Guatemala.