Abstract Objective In Europe, 4 million people were homeless in 2009. The Staircase model of care targeted mental health, drug rehabilitation and housing readiness yields poor long-term housing results. Western countries are investing in a new model, Housing First (HF), which yields better clinical and social results. We aim to explore how much the European citizens are willing to pay for the HF model and what are the determinants of this valuation. Methods A nationally representative telephone survey conducted in 2017, targeted European adult citizens from France, Ireland, Italy, Netherlands, Portugal, Spain, Poland and Sweden. Respondent’s willingness-to-pay (WTP) (n = 5,631) for HF model was assessed through a contingent valuation method with bidding algorithm. Multivariate analyses using two-part models with a cluster and weighted design were conducted to predict: 1/ respondents’ refusal or incapacity to pay for the HF model; 2/ willingness-to-pay (continuum) for the HF model. Results 42.3% of respondents were willing to pay more taxes to reduce homelessness through HF model; 30.3% were protest zero (don’t want to pay taxes (either contested the payment vehicle-taxes- or the survey instrument); huge differences being observed between countries (P<.001). Respondents were willing to pay €57 (+/- 9) through annual taxes for the HF model. Respondents with higher educational attainment, paying taxes on income, reporting positive attitudes about homelessness or practices to reduce homelessness (donations, volunteering), and those residing in a country with higher share of social protection expenditures on family benefits or higher at-risk-of-poverty rate were more likely to value the HF model. Perspective These results provide key stakeholders with an understanding of the level of support from the general population for the Housing First model; especially since the determinants of this valuation were studied according to the social and environmental context of each country. Key messages More than 42% of European citizens reported to be willing to pay for reversing homelessness. More than a three quarter of European citizens thought that Government spending on Homelessness is too little.