Gunn, 21, is yet to make a first-team appearance for the Blues, though he has been on the bench as an unused sub on 10 occasions during the 2016/17 campaign.
Gunn is also England Under-21s first choice keeper and has played senior football during pre-season.
His move to Norwich City will resonate with the East Anglian club's fans with his father Bryan Gunn having kept goal the Canaries for 12 years between 1986 and 1998, clocking up close to 400 appearances.
Gunn senior also managed Norwich briefly in 2009.
Keep posted on Angus' progress when Loan Watch kicks off again next August.