Onion
Coffee, bakery and reused civic architecture in northern Seoul
서울 강북구 솔매로50길 55 서울강북우체국 1층
Report a changed detailOnion · Mia
Help keep this guide current
Report a changed detail
Onion · Mia1F, Seoul Gangbuk Post Office, 55 Solmae-ro 50-gil, Gangbuk-gu, Seoul
Please don’t include contact details or private information. Reports are reviewed privately by the editor team and never change the public listing automatically.

Onion’s Mia branch provides a compelling northern alternative for visitors interested in the brand’s coffee and bakery. A published neighborhood interview places it in a former post-office space, and the broad concrete room is a substantial part of the attraction. Espresso drinks and pastries make an accessible order before exploring Mia’s everyday streets. Come with an interest in adaptive reuse and neighborhood context; the hard-edged seating is part of the design experience.
Order a flat white or the listed honey espresso with a pastry from the day’s bakery display.