The palace stands where the Rio de la Croce bends toward the Grand Canal, two crimson wings hinged on a slender four-storey tower. The tower carries the building’s whole ceremony: a voluted stone portal at garden level, a two-light arched window with a balustraded balcony above it, and near the top a white Istrian panel carved with the winged Lion of St Mark. Round-arched windows in white surrounds march along the piano nobile; rectangular ones close the top floor; balustraded roof terraces with wrought-iron screens reinterpret the Venetian altana in masonry. In front lies a rarity for this dense corner of Santa Croce — a private garden dropping straight into the canal behind a brick wall and iron railings, with a water gate and its own moorings. On a June evening the low sun still holds the upper floors while the garden wall has already slipped into shadow.

Who designed it is, for now, an open file. Hotel-trade listings date the building to 1887, a figure no archive has yet confirmed, and the palace appears in none of the standard literature under a name of its own. What the facade does document is a rulebook. Between 1891 and 1925, as Venice rebuilt whole stretches of its unhealthy housing, the municipal Commissione all’Ornato systematically rejected residential designs it judged too eclectic or too Viennese and pushed architects toward a neo-Renaissance standard — round-arched openings on the intermediate floors, rectangular ones at the top — that the historian Paolo Maretto later called “eclettismo programmatico”. The archives record exactly that battle a few doors inland: in 1912 Provino Valle (1887–1955) designed an apartment block at Calle dei Amai 197 for the building firm Pasqualin & Vienna, and the Commission forced him, revision after revision, to abandon his Viennese Secession language. Whoever drew the red palace on the water worked inside the same rulebook. The lion on its tower almost certainly postdates 1797, when most of the fallen Republic’s emblems were hammered from the city’s walls by decree; when the lion returned, in the decades after unification, it returned as a plain badge of Venetian identity.

The waterway itself remembers a vanished church. Santa Croce, suppressed in 1810 and demolished within decades, gave its name to the sestiere, to this stretch of canal and to the Papadopoli gardens laid out on its grounds in 1834–35 by the stage designer Francesco Bagnara — gardens the 1933 works for Piazzale Roma later cut in half. Across the bridge, Vincenzo Scamozzi’s church of the Tolentini (1591–1602) fronts the former convent that has housed the Iuav architecture university since the 1960s, its entrance rebuilt from a design by Carlo Scarpa. At the south end of the palace’s own bank, the osteria at civic 231 began as a sixteenth-century inn. Piazzale Roma and the railway station are five minutes away on foot, and the vaporetto hub at Piazzale Roma serves most of the city’s lines.