A plumber transformed his Leicestershire loft into a cannabis factory.
Leicester Crown Court was told the attic had a lighting and hydroponics system installed - but the ceiling was in danger of collapsing when the police searched John Mills' home, where the electricity supply had also been by-passed.
Luc Chignell, prosecuting, said the growing operation was "sophisticated" and the 25 cannabis plants seized by officers could have potentially yielded 1.4 kilos of the class B drug.
Mills, 42, admitted producing cannabis in the roof space of his flat in Forryan Road, Hinckley, in July last year.
The prosecutor said: "He told officers he owed
link source - Leicester Mercury