We provide the first systematic, international decomposition of possible financial benefits of sustainable real estate investment on corporate performance metrics across the two leading country-markets in terms of sustainable property certifications. In the UK, where a baseline level of environmental reporting is mandatory, listed property companies benefit somewhat from investments in sustainability-certified properties through higher cash flow and valuation outcomes. In the US, which features no requisite reporting, the benefits of sustainable investment are stronger and comprise distinct cash flow, risk, information and corporate valuation effects. Our results suggest benefits of improved transparency and benchmarking from environmental performance reporting.