Trying to work out the height of the tree. Have you seen it flower? As others have said, a more close up photo of leaves will help. The habit looks like Privet. If so, most likely Ligustrum Lucidum or Japonicum. Creamy white small plumes in early summer time.
Other one is Holm Oak, Quercus Ilex. The backs of the leaves will be very pale, almost white.
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Other one is Holm Oak, Quercus Ilex. The backs of the leaves will be very pale, almost white.