McHugh completed his move to Plymouth's Home Park this Monday having signed a two-year deal with the Pilgrims.
The Irishman will officially move to Plymouth on a free transfer at the start of next month after the expiry of his City contract.
Following his move to Plymouth, McHugh becomes the fourth member of the famous 'history-makers' squad from the memorable 2012/2013 season to leave the club this summer after Gary Jones, Garry Thompson and Nathan Doyle also departed during the off-season.
McHugh made 44 appearances in two seasons for the Bantams after joining the club in August 2012.
Undoubtedly McHugh's most famous outings in the colours of City came during the club's tremendous run through to the 2013 Capital One Cup Final.
McHugh started in each one of City's famous cup triumphs over Wigan Athletic, Arsenal and Aston Villa, playing a key role in each tie.
The 21 year-old certainly made a lasting impression on the Bantams faithful when he scored a superb header in the dying minutes of City's first leg semi-final against Villa to crucially give Parkinson's squad a vital 3-1 advantage going into the second leg.
Having helped City finish the job off in the second leg on a mind-blowing night at Villa Park, McHugh was rewarded with a start in the Capital One Cup Final against Swansea City in front of over 80,000 at Wembley Stadium.
As memorable as McHugh's bullet header against Villa in front of the Sky Sports cameras was though, the goal certainly wasn't a one-off thing for the young Irish defender, however.
McHugh, who became renowned for his brave and committed displays at either left back or centre half, did in fact score all four of his City goals with his head, including an important late winner over Port Vale last season.
During his time at City, McHugh also earned his first under 21 caps for the Republic of Ireland and was awarded the Football League Young Player of Month for January 2013.