The striker joins the Club from Needham Market, who play in the Southern League Premier Division Central. The 18-year-old has been building experience in men's football for the side and he joins The Bees following a successful trial period.
The Holland-born youngster has spent time with London-based Albatross Academy as well as ProChance Academy before he then went on to turn out for Andover Town. The youngster has also represented England schools in previous years, and he will add further options to the B Team squad.
On his latest recruit, Brentford B Head Coach Neil MacFarlane said: "So far this season we've had Nathan Young-Coombes as our sole striker so it's important that we get someone to come in and challenge Nathan as well as play alongside him should we decide to play with two strikers. Hans is somebody who wants to press and he's very mobile. Our aim is to help him to develop his all-round game with things like link play.
"We're delighted to have him here with us. He is a player who has experience of men's football at a young age, so he has a really good base, and we hope to push him on over the course of his time with us."