Why are the houses in Hanoi's Old Quarter so narrow?
Based on 5 discussions · Last activity: 11 days ago
TL;DR
The narrow 'tube houses' (nhà ống) of Hanoi's Old Quarter exist because merchants were historically taxed based on the width of their street-facing facade, so they built narrow fronts and long, deep interiors instead.
What the community said
In Hanoi's Old Quarter, houses were traditionally built for trade: the shop or workshop faced the street, while living quarters and storage extended deep into the building.
13 days ago Hanoi Old Quarter
The 'tube house' (nhà ống) shape comes from a historical tax based on the width of a building's street facade — a narrower front meant lower taxes, so owners built long, narrow homes instead.
13 days ago nhà ống (tube house)
A classic example is the historic house at 87 Mã Mây Street: the facade is only about 5 meters wide, but the building extends 28 meters back, containing a shop, storage, living space, and a courtyard for light and ventilation.
13 days ago 87 Mã Mây Street
Over time, the narrow building style spread across Hanoi due to limited urban land and population growth — today, houses just 3-5 meters wide can be found not only in the Old Quarter but in modern districts too.
13 days ago