The Brentford striker arrived at Aston Villa's training ground for a medical earlier today.
And according to the Daily Mail, Hogan has finalised his move.
Aston Villa transfers: Deadline day ins and outs rumours rated
Tue, January 31, 2017
Football Whispers have rated Aston Villa's chances in the transfer market on deadline day (1 – unlikely, 5 – likely)
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Football Whispers have rated the likelihood of Aston Villa’s deadline day deals
Villa became favourites to sign the 24-year-old after West Ham dropped out of the race.
Hammers boss Slaven Bilic said: "I believe that we have really good strikers in our squad and that's why we won't have a Hogan deal.
Scott Hogan is on his way to Aston Villa
"Definitely a good player, good age and scoring goals in the Championship.
"It's not a question of him, it's a question of what we've already got in the squad."