Abstract: In this paper, we deliver the first causal evidence on the relationship between immigrant host-country language proficiency and homeownership. Using an instrumental variable strategy, we find a substantial positive impact of language skills on the propensity to own a home and the quality of housing among immigrants in the United States. While this effect is mediated by household income, our estimates also speak in favor of a direct language effect. Suggestive evidence further indicates that part of this effect may be driven by discrimination. Our results highlight the importance of host-country-specific human capital and, in particular, language proficiency for socio-economic assimilation in housing markets.