Tree ID (described)

On our allotment site we have some trees along side a road that were planted there when the site was a nursery.

There is a tree I've never seen before though

Bascially as I havent got a photo now, it is evergreen, has long thin leaves with some gloss but not much. The flowers (out now), are like the arragement of Elderflower or Viburnum tinus type flowers (It's not Virburnum tinus) and are white.

Do any trees match this decription?

 

Something like the "cauliflower-like" flowers on a Mountain Ash then?

A photo would make this easier, eh?!