Finding affordable housing in Cologne is brutal. GenossenschaftenKöln monitors every major Cologne housing cooperative daily at 8 AM and emails you instantly when new flats appear. ✓ 20+ cooperatives monitored automatically ✓ Daily email alerts with direct links ✓ Map view of all available flats ✓ 100% free, no ads Built by a Cologne local who got tired of checking 20 websites every morning.