The CITV home from 1983-1996 came from the so-called "ATV Centre" building, on Broad Street in Birmingham.  Built in 1969, it was to house the new broadcast centre for Midlands broadcaster ATV in preparation for the new UHF 625line transmission system, still in use today and planned to be switched off by 2010 in the move to Digital TV.

ATV Centre was home to the original version of Crossroads and the broadcast centre of ATV to 1982, and Central Television up until 1996.  From 1983 it was also used for Children's ITV, with live "inbetweeny-bits" between programmes from 1987.

Carlton Television, in 1994, bought out Central TV and then in 1996 did some relocating - moved out of Broad Street and ATV Centre, to Gas Street where they remain today, although filming is now done in Nottingham.  ATV Centre had all its equipment and accessories and stuff sold off and was then boarded up, where it has stood empty since 1996.

With the advent of the the new plan to redevelopment Birmingham, it has been on the cards for a long time - indeed, a certain "Carlton Communications" is one of the partners in the "Arena Central" development, which includes knocking down the 1970-built studio

complex.  It's part of Birmingham Council's planned revamp of the town, which

is explored in great detail at "Transdiffusion"'s

http://www.transdiffusion.org/emc/christmas/paradise/ site.