The paper examines investment in social rented housing in France, Germany, the Netherlands and the UK. Although various indicators of investment are considered, social dwelling construction data are seen to be the only comparative measure available. The institutional arrangements in each country are considered together with the financing routes. An overview of the different policy approaches is provided. Explanations for differences in social rented housing investment rates are considered and the prospects for the future examined. It is argued that while the division between private and social rented housing may become increasingly blurred, the objectives of social housing can only be achieved with redistributive mechanisms.