Yes, I would think that renovating a bathroom would require the purchase of new bathroom parts like vanity, toilet, sink, shower/tub, flooring, etc. If you are renovating the entire bathroom you can probably add all of the new purchases for the bathroom together to get one cost.
Generally, if you are renovating a bathroom in a rental house, aren't you using new parts to do that new remodeling? I don't think you traded old parts for the new parts.
