What are the differences of japanese housing?

Generally much smaller size than what you have back home, many places are roach infested in the summer, they are thinner in construction and not meant to last decades as they are in the west, kitchens are far more utilitarian and with much less interior decoration, and with the Japanese climate air conditioning in the summer is almost a must. They also use a lot of kerosene heaters in many homes for the winter, but since they burn oxygen you must open the door or windows periodically - kind of defeats the purpose. Outside space for lawn and gardens is also small or non-existent in many cities. Otherwise they can be comfortable and even cozy.