This data article contains data related to the research article entitled "Vascularized subcutaneous human liver tissue from engineered hepatocyte/fibroblast sheets in mice," published in Biomaterials . Engineered hepatocyte/fibroblast sheets (EHFSs) are used for construction of vascularized subcutaneous liver tissue without a pre-transplant vascularization procedures. Here, we described a rapid production technique of EHFSs by controlling fibroblast density and coating fetal bovine serum (FBS) onto temperature-responsive culture dishes (TRCDs). The human fibroblast monolayer formed on FBS-coated TRCDs within 1 h when seeded at a high density (at least 1.56 x 10(5) cells/cm(2)). The most rapid EHFS production was achieved soon after the adhesion of human primary hepatocytes onto the fibroblast layer. (C) 2015 The Authors. Published by Elsevier Inc.