The Spider Park on the Headlands Estate was re-opened by Cllr Alan Hills.
New climbing frames, roundabouts and swings have been installed for youngsters to enjoy.
The existing spider climbing frame, roundabout and slide have also been renovated, and an enclosed toddler area has been created.
Councillor Alan Hills, portfolio holder for community, culture and leisure at Daventry District Council, said: “I’m delighted that this new play equipment has been installed in the Spider Park, which will hopefully be enjoyed by youngsters living in this area for many years to come.
“As a Council we recognise the importance of physical activity amongst young people and improving the play equipment provided by DDC can only help achieve that.”
The new equipment has been funded through Daventry District Council’s capital spending programme for play facilities.
A consultation was previously held in 2010 asking families and young people what facilities they would like to see in the Headlands playground.