Cầu Giấy and Đống Đa are the two most common answers when companies start searching for a serviced office in Hanoi. Both are legitimate options. But they serve fundamentally different business profiles — and choosing the wrong one creates friction that shows up in ways that have nothing to do with the monthly rent: a daily commute through one of the city's worst bottlenecks, the wrong neighbourhood for your clients, or an address that doesn't carry the weight you need it to.