This study assesses the phenomenon of resale price discounts for top-floor units of residential buildings, or "top-floor discounts." Using 1.9 million resale transactions of apartment units from South Korea, we find that top-floor discounts range from 1.3% to 8.3% of resale prices. We hypothesize that top-floor discounts exist because of larger heating/cooling costs for these units relative to those on lower levels, resulting from relatively more extreme variation in indoor temperatures unique to top-floor apartment units. Using a household-level survey data on energy consumption and exploiting variations in weather conditions and roof material across time and regions throughout South Korea, we provide evidence in support of our hypothesis.
K E Y W O R D Samenities, temperature, top-floor discounts, vertical rent gradient 1 1 For more recent studies in which models with vertical dimension are analyzed, see Liu et al. (2018) and Ahlfeldt and McMillen (2018).