No, a semi-mature tree such as this doesn’t need to be pruned or “tamed” — but it can be. In a situation like this, where you must prune one side of it to keep the driveway clear — and assuming that you’re not willing to move the driveway to suit the tree — then yes, I would recommend cutting back more generally for balance.
However far you need to cut the branches back on the driveway side should be replicated all around the tree so that it looks in proportion and balanced.
The best time to prune a deciduous tree such as a hornbeam is during the autumn and early winter when the growth is slowing down for the dormant season.
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