I'm not exactly sure of the North America (HOSP/ATS) servers' policies for admin recruitment and execution. I do know that however, at around 7 o' clock central time, on the date of April 8th, 2011 I was banned without prior warning by Hospitaller_Havoc immedaitely after placing a construction site.
I haven't memorized the Hospitaller's server rules, though keep in mind I have read them. For the ATS' server, the following is stated upon entry:
"Admins: Welcome to NA CRPG. RULES: No FF/TKing. No Ladderpaulting. No douchebaggery. No Delaying Rounds. Do not force duels. Nominate maps to be removed on the forums!" [sic]
If the two servers have the same rules, which I believe they do, then nothing is explicitly stated against the idea of placing construction sites.
However I am sorry for placing that construction site. Considering I was perma'd for something that would normally constitute a warning, I hope my appeal will be considered.