Why Old Town Chinatown faces water damage risk
Old Town Chinatown’s age profile is different from every other area on this list — we treat it that way.
Old Town Chinatown is documented as Portland’s oldest platted neighborhood.
The area retains some of the city’s oldest surviving commercial building stock.
Buildings commonly mix ground-floor commercial space with upper-floor residential units.
The oldest building stock in the city sits on likely the oldest plumbing and roofing infrastructure, and historic masonry construction means water intrusion through mortar, parapets, or window seals can hide longer than in modern drywall.