Taiwan officially entered an ultra-aged society at the end of last year, highlighting a growing disparity in its housing market. In Taipei City, residents increasingly occupy older homes, reflecting the city's established demographic. Conversely, Hsinchu City sees a higher proportion of younger residents living in newer housing. This contrast is linked to differing economic conditions and population flows between the two cities. Hsinchu’s growth, fueled by the technology sector, attracts a younger workforce, driving demand for modern housing. The trend suggests a widening gap in living standards related to age and location within Taiwan. This situation poses challenges for urban planning and social policy as Taiwan adapts to its rapidly aging population.