This paper describes the design and thermal performance of a passive-heated building for the cool, humid climatic conditions of Srinagar, India. The annual climatic variations of Srinagar are from a cold and very humid winter to a temperate, humid late summer. Thus, the major trend is creating comfort conditions by appropriate heating. The design discussed here therefore uses passive heating concepts. Special care is taken to prevent wasteful heat losses during the winter and unwanted heat gains in the summer. In order to ascertain the performance of the design, a thermal analysis has been carried out. The performance was found to be satisfactory.