Who's using the socket, what's its purpose location etc. For a new socket I would recommend RCD for sure regardless of if technically you "can get away without"
Ways to do it...
1) RCBO in consumer unit (unless cu doesn't accept them)
2) RCD in enclosure next to cu in-line with hallway RFC
3) RCD socket (many don't look ugly at all these days
Personally, I wouldn't install a socket outlet without RCD protection.
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