#2 Chelsea - 2004/05, 2005/06, 2006/07, 2007/08, 2014/15
In his 1st season in charge at Chelsea in 2004/05, Jose Mourinho had made the Stamford Bridge a fortress. The Blues went unbeaten in front of their home fans for 4 straight seasons!
The club also won their first Premier League title (their first league title in 50 years). The club also won its 3rd League Cup that season. Plenty of records were broken that season.
Chelsea then won the Premier League for a 2nd consecutive year the next season. They also won the Community Shield that season. Though Mourinho couldn't win the Premier League in the next season, he did manage to win the FA Cup and the League Cup.
Chelsea again went unbeaten in front of their fans in the 2014/15 season and once again, it Jose Mourinho who lead them to this feat in the process, winning the clubs 4th Premier League title.