My compiler doesn't allow me to make up spelling in my code, but my friends are fine with me making up alternate spelling when I text them. Not everything is computer code or legal documents.

The names that bureaucrats or real estate agents give to neighborhoods has never mattered to me. Why do you think we have to be beholden to it? My point is that you're free to call your neighborhood whatever you want. I'm sure you're capable of figuring out which name is appropriate to use depending on the context of your conversation.