Hi, all members of BCL, We have made one more step on tracking historical urban development of Beijing using open data, available from various departments of Beijing Municipal Government. Last night our member Mr LI Miaoyi finished geocoding the second data of BCL (2 Land transactions) and I uploaded them online at http://longy.jimdo.com/data-released/. Hope the geocoded land transactions, together with DATA 10 Land use planning permits in Beijing 1997-2013 and DATA 8 Housing price in Beijing, may help your understanding on spatial development of Beijing during last decades. It is an era of not only "big data", but "open data". Hopefully open data would be a solution for quantitative urban studies for China. Have a new start of Chinese New Year! Best regards, 龙 瀛 Ying LONG Ph.D, Assoc. Prof. Beijing Institute of City Planning Beijing City Lab: http://longy.jimdo.com/ Managing Editor of IRSPSD http://spsdpress.jimdo.com/ https://www.jstage.jst.go.jp/browse/irspsd Album: http://a1_b2.bababian.com