Heritage buildings are known to be climate responsive, and its building materials were properly
selected to attenuate exterior conditions. Many of these buildings were converted into museums,
which need to have a stable indoor climate in order to safeguard valuable collections they housed. The
characteristics of heritage buildings which were built to response with the climatic conditions may help
to contribute a better indoor environment for the collections. By studying several case studies, this
research showed that the buildings, occupied by those museums were designed to deal with climate
passively and have architectural features that able to regulate the temperature and relative humidity,
which in turn can be utilized by the museums. This paper seeks answers and examples of how
utilizing passive design can better control the climate, without relying heavily on the HVAC mechanical
systems which in turn highlight energy efficiency and sustainability in museum design.