I stayed in this appartment for a few weeks and plan to use it again should I return to Madrid. While I was travelling alone then, it would certainly accomodate a family of four (such as mine). It is very rare, and thus a priviledge, to find an appartment in one of the really old and elegant buildings of Madrid, as they have become so expensive that are mostly used for office space. In this case, and although the building does have may offices, the place was absolutely quiet. The owner was also nice and helpful. Absolutely recomend.