Greater London Council Leave a reply Greater London Council Greater London Council Details Permalink: https://publishers.lawin.org/greater-london-council/ (Stable identifier) Works published: 9 Place of Publication London Related Names Published works London building acts (amendment) act 1939. Section 20: code of practice for buildings of excess height and/or additional cubical extent requiring approval under Section 20 of the London building acts (amendment) act 1939.