subject-verb agreement with ()

[emsr2d2]

That's right. It's common in the USA to see developments with such names as Crowne Pointe and Towne Shoppes.

In the UK, an extra "e" is frequently added to the end of words, and spellings are changed, to make them look as if they are from a bygone age, in an effort to give them a history they do not have.

Christmas Fayre (instead of Fair)
Ye Olde Sweete Shoppe (The Old Sweet Shop or Candy Store)

In many cases, the words used didn't even exist at the time they are meant to represent.

[HowardJWilk]

To much of the English-speaking world it's the usual spelling, but here in the USA one can add "Centre" to the list.