Another variety of houses is panel-brick houses, the outer walls of which are made of brick with insulation. One of the most striking examples of such houses is a series of I-1630 «Prism». The main feature of the houses of this series are increased metabolism of apartments (from 81-189 square meters), which fit perfectly into the category of business class. The first floors in such houses are used as technical or for commercial real estate objects. The house presents apartments from one -room to five -rooms, with balconies and loggias, two bathrooms, dark rooms and spacious kitchens (from 13 to 16.6 kV. meters). Residential complexes of this series are located in Mitino, Maryinsky Park, Zhulebino, Kurkino, South and North Butovo, as well as in the nearest cities of the Moscow Region Krasnogroske, Solnechnogorsk, Balashikha, Dmitrov and others. In addition to business class houses, there are also series for consumers of comfort and economy class. The find for these categories was the 349/01 series, consisting of one -room and two -room apartments, which are most popular in this category. The houses of this series are built an advantage in the cities of Podolsk, Pavlovsky Posad and Stupino. Do not confuse real panel-brick houses with panel houses, which are faced «under the brick». The houses of such a series of «pseudo brick houses» include the D-25N1 series.