Casa Rustici, Rationalist residential complex in Milan, Italy.

Casa Rustici is a Rationalist residential complex made of two parallel blocks connected by suspended walkways that create a distinctive grid pattern on the main facade facing Corso Sempione. The structure shows an innovative connection between residential blocks with functional linking elements that define the entire building.

Vittorio Rustici first planned a two-storey villa for himself on a lot beside the former Mortara railway, but economic reasons led him to commission an apartment building instead, keeping the attic floor as his own residence. He entrusted the project to Pietro Lingeri, whom he knew from the Il Milione gallery, and Lingeri worked with Giuseppe Terragni. Construction ran from 1933 to 1935; the municipal bureaucracy rejected the plans nine times. The building was listed in 1988.

The building shows Italian Rationalist architecture through its geometric design and functional spaces. The combination of salmon-colored Duralbo plaster and white Lasa marble creates a clear visual appearance that still marks the facade today.

The building stands at corso Sempione 36, at the corner of via Mussi and via Procaccini, on a trapezoidal lot. The main front faces corso Sempione; the northern block follows the oblique line of the former Mortara railway, now via Mussi. The courtyard between the two blocks is closed in part by the suspended balconies.

The suspended balconies linking the two blocks also served a regulatory purpose: they partly closed the opening onto the inner courtyard, which the building code in force at the time did not permit. The municipal bureaucracy rejected the project nine times before construction could begin.