• Sumitomo Mitsui Trust Bank released its 2026 study on environmental certifications in Tokyo’s prime office market, tracking uptake and rent impact.
• Certification penetration reached 65% by floor area, 36% by building count across the central five wards, signaling broad-based adoption.
• Top-rated certified large offices delivered an estimated 9%-10% premium in expected new-lease rents versus mid-rated peers over three years.
• CASBEE-certified office data showed no major gaps in energy use or CO2 emissions by location, building age, or size, implying sector-wide decarbonization progress.
• The analysis flagged further measures as likely necessary to align the office stock with 2050 carbon-neutral targets.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Sumitomo Mitsui Trust Bank Ltd. published the original content used to generate this news brief on August 06, 2026, and is solely responsible for the information contained therein.