
Excuse the crap map, but this is kind of what I mean. 1 through 6 are your normal office crap, board room, and cubicle farm. 7 is a "quiet room" for mages that are astral projecting. 8 is the magical research room, and 9 is the research farm.
More details for 8: the money symbol $ represents expensive equipment or experiments that the corp doesn't want to break/shoot at. So, in case of HRT, anyone squishy would want that in between them and corpsec
Corp mages will avoid doing anything destructive near the kudzu. Within those walls, the kudzu is "contained." I'm not sure how, but roll with it for now. If the walls are broken, then you can count 6 squares away from it, and that is the affected area for rabies.
If there is no way to contain kudzu that greps with your understanding of the setting, then just make the kudzu smaller and the "containment area" at least 5m by 5m. It's in the corner and will affect the outside of the building, but nobody honest is going to be flying that close to the building, right?
Incidentally, this also makes things precarious for anyone lobbing grenades all over the place.
Edit: Whoops, you posted while I was making this, so this may be irrelevant now