RD 40 is a symbol of the change in thinking about Polish residential development. The changing world and with it contemporary architecture in 21st century Poland is forcing a change in investors' ideas about this segment of development. This cubic villa inheriting simplicity of expression and clear function from the modernism era stood in one of the villages near Warsaw.

 Devoid of a colonnaded arcade, sloping tiled roofs and classicizing artifacts native to 19th century manor house architecture, RD 40 can stand in line with other contemporary residences in any part of Europe. A large regular plot of 3000m2 and Development Conditions gave the opportunity to design any house with a flat roof of 500m2. The investor showed up at Pawel Lis' studio practically with a ready-made design that bore little resemblance to the house that was eventually built. The house was to accommodate a family of 3, a dog and a cat.

 Originally, the house was based on the safe assumption that we like what we know well, what has accompanied us since childhood and what we have associated with “safety and comfort” over the years. The building had a high first floor, a first floor and an attic. Everything was covered with a sloping, multi-pitched roof with a large arcade. Since the house had more than 600m2 it appeared many different rooms with lots of windows. These, in turn, did not want to create either a congruent rhythm on the facade or help achieve the correct proportions for the entire house. The only problem the builder saw was the lack of a suitable place for the TV.

 The most difficult task for the architect was to convince the investor that the more than 600m2 house requires deeper consideration and analysis before amounts exceeding the average budget associated with building a house for a family of 3 are spent on it. The lack of a suitable place for a TV set was just the tip of the mountain of problems the investor's proposal hid. It turned out that the most effective method was to show another house, which has been in operation for a short time and well represents the characteristics of a contemporary villa characteristic of the Pawel Lis Architects studio. One visit was enough to find out that deep down, however, the investor is a big fan of contemporary architecture. This, by the way, was confirmed during the entire process regarding the construction and operation of the entire house.

 It turned out that all the needs of the residents can be very comfortably accommodated in a 100m2 smaller house. Thus was created a two-story pavilion on the plan of a stretched letter , “L”. In the longer part of the first floor in the south wing are located: living room, dining room, kitchen and study. The height of the living area is 3.5m and above the dining room itself and the staircase the open space reaches a height of 6.5m. The west wing contains: a guest room, a fitness room, a studio and a bathroom. At the intersection of the two sections the entrance hall and utility rooms have found their place. A 3-stall garage is located at the front. Since the investor did not want to divide the garage door, a gate of more than 7m in length, such as the one used in hangars for avionics, was designed and custom-made.

 On the first floor there is a children's room with a dressing room and bathroom, a bedroom with a dressing room and bathroom, and a laundry room. The mezzanine overlooks the first floor living room and garden. All floors are covered with polymer in dove gray. The living area is dominated by a large sandstone fireplace and a cubic wall of large Alexandrite panels. The wall supporting the overhanging floor simultaneously obscures the kitchen on the other side. The vestibule retains the reinforced concrete ceiling. There also had to be room on the walls for the sensual and colorful paintings of Prof. Tomasz Milanowski. By positioning the building in an “L”-shape with the east wing facing the entrance, it was possible to create a well-sunlit intimate courtyard open to the south side of the garden. Thanks to the strong glazing of the first floor and first floor, it is the focus of the entire house.

 Energy efficiency is also a feature of a house with a large number of windows. Enhanced thermal properties of the windows were achieved by using a warm aluminum profile and a 3-pane package. In addition, PIR insulation boards with a thermal conductivity coefficient of Lambda 0.022 W/(mK) were used, as well as the installation of windows on anchors in the face of the facade. The house is designed with recuperation and solar panels on the roof. There is energy storage. Safety glass was used on the first floor and first floor. OSLO clinker tile by ROBEN was used to finish the facade, and vertical laths were installed on the first floor. External terraces were made with architectural concrete technology.

The heavily glazed building was designed in a simple manner and based on a clear function. The whole building fits well into the terrain of the large plot and, thanks to its composition, acquires the character of a contemporary residential development.