Hanoiculture & etiquette

Under Circular 53/2016 the accommodation provider, not the tenant, must declare a foreigner's temporary residence to the ward police, within 12 hours in an urban area. Hotels file it online automatically; private landlords in Hanoi's alley houses frequently do not, and 'my landlord said it's fine' is the single most common reason a residence card application stalls. Ask for the stamped or emailed confirmation before you pay the second month's rent — you will need it for the TRC, for the bank, and if the police ever knock.

A temporary residence card requires a work permit valid for at least twelve more months, so the order is fixed: work permit, then TRC. Decree 219/2025 merged the old two-step labour-demand approval into a single application and cut the filing lead time to ten days, which helped — but employers still routinely leave it until the tourist or business visa is nearly expired, which forces an exit run and restarts the clock. Ask your employer in week one who is filing it and on what date.

January and February regularly sit between 10 and 15°C and can drop below 10, with damp that makes it feel colder. Almost no Hanoi flat has central heating; the aircon unit's heat mode and a bar heater are what you get, and old buildings have single-glazed windows and no insulation. People arrive with tropical assumptions and a suitcase of shorts, then spend a fortnight cold indoors. Bring or buy actual winter clothes and check what heating a flat has before you sign.

From November to March, temperature inversions trap emissions over the Red River delta and Hanoi routinely appears in the world's ten most polluted major cities; IQAir logged it in the global top ten repeatedly through January, February and March 2026. Annual PM2.5 sits at multiples of the WHO guideline. A purifier in the bedroom and replacement filters run several million đồng in year one and are the thing long-term residents say they wish they had bought on day one, along with checking whether the windows actually seal.

Directive 20 of July 2025 originally set an outright ban on fossil-fuel motorbikes inside Ring Road 1 from mid-2026. Hanoi's People's Council replaced that in November 2025 with time- and area-based restrictions across nine central wards inside Ring Road 1 from 1 July 2026, widening to fourteen wards inside Ring Road 2 from 1 January 2028. The direction of travel is settled even though the detail keeps moving. If you are buying a bike to live in Hoàn Kiếm or Ba Đình, buy electric or expect to be restricted within two years.

The capital is where the ministries, state enterprises and party institutions are, and business here runs slower, more hierarchically and more on relationships built over time than in Ho Chi Minh City. Meetings begin with tea and personal questions; a decision rarely happens in the room. Northern speech is also the broadcast standard, so the Vietnamese you learn here is the textbook version — which is an advantage everywhere except when a Saigon taxi driver answers you.