TV21 Annual 1971 published a story about a Pilkington Glass Age Development Committee design study of a “Sea City” for a community living offshore. A model was created and cutaways and renderings of the model appeared in the press. Details can be found at http://www.aiai.ed.ac.uk/~bat/sea-city.html
A nice article in Starlog’s Future Life Issue #18 covered Sea City and included a rendering of Sea City on the cover.
A possible project to build a virtual reality recreation of the model in the OpenSimulator virtual world platform or as a Unity3D VR Experience is under consideration…