The Kaštan Cultural Center is still perceived as part of the broader Břevnov Monastery complex. The design aimed to preserve the visual connection between the monastery and the historic “U Kaštanu” pub building. At the same time, it was impossible to ignore the modern development along Bělohorská Street and the historical transformation the area has undergone.

The new extension is therefore positioned as a continuation of the Bělohorská street line; its ridge height aligns with the cornice of the existing building to maintain visibility of the historic structure from a distance. By concentrating new functions into a single, separate building, the design creates a composition of two structures and three public spaces, all maintaining direct visual links to Bělohorská Street, the Břevnov Monastery, and Josef Škvorecký Park. The new, partially sunken building utilizes the change in terrain to allow access from different levels. Its street-side placement facilitates easy servicing while preserving most of the existing trees. A new square—suitable for markets and featuring a café—is created on the western side. The building effectively has two “heads” featuring extensive glazing: one turns toward the new café forecourt (hosting occasional markets), while the other faces the courtyard leading to the new hall. This creates an intimate space between the new and existing buildings, providing the barrier-free access to the entire complex that was previously lacking.

The façade draws inspiration from the poster displays seen in historical photographs as well as the cultural center’s current appearance. Overlapping, coated glass panels are designed to evoke event posters, with the option to display current information on an embedded screen.