Byron has been a regular for the Under-18s this season, and joins Mark Burke's Canaries who currently sit in 18th in their division, having also reached the first round of the Emirates FA Cup earlier on the campaign.
The 17-year-old left-back is eligible to play for Hitchin this evening when they face fourth-places King's Lynn Town.
Any Hatters wanting a midweek football fix should head down to Top Field for the 7.45pm kick-off to see if the second-year scholar makes his senior debut.
Good luck Toby!