Cliff, Thanks for your patience, though I don't have the advantage of collaborating with coworkers on these common issues I probably know enough to be dangerous since working with revit for 2+yrs. I have never not been able to place or host a door before. This is a first. I have constrained floors & walls to levels at the appropriate height, set the work plane at the level needed. I duplicated the 1st flr view to make the LL view I'm working on. I have never had a time when the elements didn't attach to walls in the level I wanted. There is a new renegade issue I must find that will continue to haunt me that wasn't there before when I started the LL view. I have doors I placed earlier in walls that now are trying to attach to walls on the 1st level. Thanks again for your effort to guide me thru this elementary condition. I appreciate the tips you have given me. Jan