Organizational processes are often described as being “top-down” or “bottom-up”. At the level of EU integration relations between EU and member-state institutions can also be conceptualized in these terms. European integration is based on decisions made by representatives of its member-states and member-states have a large degree of discretion in the implementation of EU policies. This gives off an appearance of a “bottom-up” quality to pan-European policy. But when it comes to part and parcel of public administration many national government agencies can only perceive this process “top-down”. The complexity of policy design process and absence of co-ordination of how national agencies go about their business means that policy adoption is seldom straightforward across member-states. Once policies are set in motion, there are limited possibilities of review stemming from the “bottom”. In some sense, this is the story of the road to Brexit. The paper claims that current challenges to European integration may in part be attributed to this institutional setup. This paper revisits the concept of European Administrative Space to see if it can be framed in terms of “bottom-up” integration, whereby essentially member states would be encouraged to test their proposed national reforms from the point of view of EUfriendliness. Proliferation of such a practice would not require any major legal change or governance process standardization. With proper monitoring the practice could augment the existing international co-operation between government agencies by opening venues for cost sharing, and streamlining the “top-down” policy decisions once political will becomes available.