That looks remarkably like common holly, or Ilex aquifolium, which gets up to 80 feet tall if left unpruned. It is difficult to keep it small once it gets past the first 6 or 7 years because it grows quite rapidly after that time. You don't mention seeing any berries on it either, so this may be a male plant and will never produce any, though rigorous pruning may deter berry formation even on a female plant.

The other thing I can see is that the wall it's close to might be the wall of a building or house - if it is, I'd suggest you remove the holly, because unless you rigorously keep it pruned back hard, its root spread may threaten the foundations of the building. There are plenty of other evergreen shrubs available that won't get so large and will be a lot easier to maintain.

That looks remarkably like common holly, or Ilex aquifolium, which gets up to 80 feet tall if left unpruned. It is difficult to keep it small once it gets past the first 6 or 7 years because it grows quite rapidly after that time. You don't mention seeing any berries on it either, so this may be a male plant and will never produce any, though rigorous pruning may deter berry formation even on a female plant.

The other thing I can see is that the wall it's close to might be the wall of a building or house - if it is, I'd suggest you remove the holly, because unless you rigorously keep it pruned back hard, its root spread may threaten the foundations of the building. There are plenty of other evergreen shrubs available that won't get so large and will be a lot easier to maintain.