A sheared one! Needs a close-up of a foliage spray (ideally of both top side and underside) to tell which species.
I can't take more pictures of the tree. It is a part of a (beautiful) hedge in one of the gardens in a town about 150 km from where I live. It was silly I didn't take any close-ups. But yes, it looks similar to Thuja occidentalis 'Smaragd'. Thanks.