Occupant satisfaction with the indoor environment in seven commercial buildings in Singapore

We surveyed seven Green Mark certified air-conditioned commercial buildings (666 responses) in Singapore about their satisfaction with the indoor environment. We used a 7-point scale to evaluate subjects' satisfaction with 18 Indoor Environmental Quality (IEQ) parameters. We also asked follow up questions on the reason(s) of dissatisfaction. We found that occupants were most satisfied with dress code (85 % satisfaction), electrical light (84 %) and cleanliness (81 %), while they were most dissatisfied with sound privacy (40% dissatisfaction), personal control (29%) and temperature (29%). Nevertheless, about 78 % of the participants expressed satisfaction with their overall workspace environment. Our results indicate achieving a high occupant satisfaction for some IEQ factors is harder than others. We determined that the major contributors to thermal dissatisfaction were insufficient air movement and overcooled workspace. Occupants in open plan office were unhappy with the noise produced...