It is a laurel, Prunus laurocerasus
Here in the US they're referred to as Cherry Laurel, and I should warn you [if you've not already learned it]: if you park your cars anywhere near them, your local avian pals will do you the kind service of covering them with blue poo...............
They are common hedging plants in the UK, but they need to be kept in-check, else they can get tall and wide and make it difficult for other plants to compete. They can be hard-pruned to get them back in shape, but in so doing they will sprout vigorously and need a bit of extra work for a couple of years. But bear in mind that, being Prunus, they are suspectible to silver leaf disease (etc.) so large pruning wounds can let that in, which can kill the plant.
Incidentally, the leaves contain prussic acid, a.k.a. hydrogen cyanide. The crushed or shredded leaves smell of almonds but that should not be inhaled other than incidentally. Be aware. More here - http://www.thepoisongarden.co.uk/atoz/prunus_laurocerasus.htm