RIBA ran the competition to find a design team to create a landmark space that will be used by the public and enjoyed all year round for a project delivered by the Prescot Townscape Heritage Initiative with support from Heritage Lottery Fund.
The judges felt that the winning proposal, which beat 44 other entries, created a flexible, engaging space for activity to take place.
The scheme will improve connections to the site of the proposed Theatre and St Marys Church and provides places for people to sit and relax in the centre of Prescot.
Mark Wray, Mark Wray Architects and Jack Marshall, Seed Landscaping said: "We are delighted to have won the RIBA open competition and we are looking forward to creating an exciting new public space in Prescot to serve the community of this historic town."
Councillor Graham Morgan, Knowsley Council’s cabinet member for regeneration and economic development said the competition had been really popular.
"The final design really takes on board the comments received during the public consultation and includes seating areas and space for a café and community groups and activities. It will be wonderful to see the area once it’s transformed and for local people to enjoy it.