My place is right in the centre of city, only 5mins walk to West Lake, the biggest lake of Hanoi with many foreigners living.
You can go by taxi or motorbike to Sword Lake and the Old Quarter, it only takes around 6-8 minutes from our house. You can also find Lotte Shopping Mall (1km) or Circle K super market (200m) and many restaurants, Vietnamese street food for you to try around this area.
Our home is kid-friendly. My son has a playing room and he can share it with your kid sometimes.