Ground[edit] The club's initial 2011–12 season was played in the Northants Senior Youth League, and games were played at Kiln Park, Raunds, the home of Raunds Town F.C..
The club's first senior season was in 2012–13, played at the Dog and Duck ground in Wellingborough. This arrangement remained for some years.
On 21 July 2016, Diamonds released a joint-statement with Wellingborough Town, confirming that the Dog and Duck landlord Alper Ozdogan had invoked a clause in Wellingborough's lease agreement, forcing them to leave the ground by 31 May 2017. This effectively brought an end to the current ground share agreement on that date. Diamonds confirmed that they would be seeking an alternative ground share agreement in the local area.[40] After a vote amongst the club's members, it was agreed to groundshare with Rushden & Higham United at Hayden Road in Rushden, starting from the 2017–18 season and until a new ground would be completed.
In November 2018, an agreement with the Duchy of Lancaster resulted in land being set aside along the B645 Chelveston Road for the construction of facilities to serve the club. This 30-year lease also includes the possibility of expansion into neighbouring areas should the opportunity arise.[41] As of the 2019–20 season, the club still groundshares with Rushden & Higham United.