PropertyJapan's market shifts to boosting value of existing sites as costly new builds lose appealSumitomo Mitsui Trust Bank intends to open a fund focusing on offices and rental housing in cities, with plans to add value through spaces for childcare support and startup networking. (Source photos by Nikkei)KAI ISHIZAKIAugust 8, 2026 01:39 JSTTOKYO -- Sumitomo Mitsui Trust Bank will create funds to invest in renovations of properties such as urban offices and hotels, meeting rising demand for such projects as growing costs make new construction less profitable.