I agree with GalaGirl
. If he is just a friendly guy not interested in romantic relationship or if the relationship breaks up in future it can get messy.
But again it all depends on you and him. If he is a nice gentleman and if things don't work he might just rollback and do nothing.
Again, he may be the right person for you.
Bottom line, you have to think judge and measure everything. You have to consider all of the "what if"s...
I know few people who have found their partners in their places of work.