If a Vorsorgewohnung is an investment “for one person,” then a Zinshaus is an investment on an entirely different level. Zinshaus (literally “income house”) is a multi-apartment building fully owned by a single owner that generates income through rental. It is one of the symbols of Viennese real estate: majestic buildings from the Gründerzeit era (1848–1918), with high ceilings, stucco, and...