Looks like Escallonia 'Iveyi'. Will get very big eventually and if it isn't pruned then it tends to lose a lot of the lower growth. I pulled my hedge of Iveyi up because that is exactly what it did. I would pune about one fifth every year after flowering. If you can take the time to prune by hand, then cut back just above a leaf axle to prevent die-back. This will take off the dead flowers which it usually holds on to. I found that a feed of Epsom salts helped to keep it green as it has a tendency to yellow especially on limey ground.

Thanks Jimmy, yes you are right it is 'Iveyi'.