No, it’s just a posh house that an estate agent wanted to charge more money for.
The building type in OSM is just that - a building type. The word “villa” isn’t being used for that here - it’s simply saying “this is a better or more expensive X than other Xs of the same type”. That might be worth recording somehow in OSM if some sort of verifiable tag can be found - but it doesn’t replace the building type.