Not right in the central of Hanoi, but my house is full of conveniences and comforts. You just take a taxi/grab/uber (15 minutes, 3$) to Hoan Kiem lake, Old quartet. The house has living room, kitchen, 3 bedrooms, 3 toilets, 2 bathroom. It can accommodate 6-8 people. With affordable, competitive price, my house is the one of your best choice to family, group of friends, people on business trip.