But construction costs are non-negligible, between 300,000 and 350,000 CHF, according to the city: https://www.stadt-zuerich.ch/hbd/de/index/immobilien-bewirts

But construction costs are non-negligible, between 300,000 and 350,000 CHF, according to the city: https://www.stadt-zuerich.ch/hbd/de/index/immobilien-bewirtschaftung/staedtisches_portfolio/gesundheitsbauten/zueri-wc-hoeschgasse.html https://www.stadt-zuerich.ch/hbd/de/index/immobilien-bewirts... Building a public toilet that remains reasonably appealing over its lifecycle (Zürich plans for a 20 year lifetime) is a non-trivial problem and has a non-trivial cost.