Inter Manor were formed in 2002 when members of the Ruislip Post Office football team wanted to start playing Sunday league football. The Name Inter Manor derived from most of the original team members coming from the Ruislip Manor area and as there are already a number of teams with the name Ruislip, in their title, it did not take long for the name Inter Manor to be born. A crest was designed by one of the founders, Karl Fonseca and Paul Quinnell also helped the club with much of the administration and paperwork that is needed in setting up a pub team these days. The post office team continued to play on Wednesday afternoons and as the summer began the team joined the Harrow Sunday challenge league naming Broadfields as their new home ground.

They were fortunate to be put into the 2nd division straight away and had to start their inaugural season facing many well established Sunday league sides. A "hugging" fit purple kit was donned by the players in the first year as Inter Manor ended up finishing just above the relegation zone and even having the remarkable achievement of gaining the clubs biggest defeat to date loosing 10-1 to the Harp in a league match.

2003/04 saw the arrival of a new manager Lee Mayes and a new gold and black kit was purchased by the club. New players were brought in and the team were starting to play good football. As a result, the team clinched promotion on the last day of the season beating none other than, the Harp.

2004/05 saw a blue and white hooped kit as Manor consolidated in division 1 avoiding relegation on the last game of the season.

2005/06 began difficultly for the team but a remarkable run of results over the Christmas period saw the team claim a best ever 4th place finish in the Harrow Sunday Challenge League 1.

2006/07 started with manager Lee Mayes leaving the club by mutual consent and being replaced by club captain and goalkeeper Dan Evans. This upheaval and a disappointing pre-season was followed by a disappointing season with the club finishing a lowly 8th, the lowest position since the 2003/04 season.

2007/08 saw the club reach their first ever Cup Final after a dramatic run in the League Trophy. The side eventually lost the final and finished the season in mid table in what proved to be a patchy and inconsistent season.

In the 2008/09 season Manor suffered from an unsettled side and a small squad. But the sides quality shone through as they reached consecutive Leage Cup Finals, but once again lost in the final, this time 1-0. The season ended with a final day win to secure the team remained their 1st division status once again.