Portsmouth City Council is planning improvements to sports pitches and changing rooms in the north of the city.
The work would include repairs and refurbishment at the pavilion at the King George V playing fields, which was badly damaged in an arson attack. Only half of it is in use.
A proposal to set aside £588,000 towards the work will be considered by councillors as part of the council's capital budget, which will go before the Cabinet and Full Council for approval.
Cllr Steve Pitt, Deputy Council Leader, said: "Some of the facilities in the area are in need of urgent improvements, and of course we want to restore the King George V pavilion, where changing facilities were badly damaged by the fire.
"I hope my fellow councillors will back this plan and set this money aside. We are also hoping to bring in funds from other sources, so we can do all the work we would like to do."
The capital budget invests in a range of infrastructure schemes throughout the city like buildings and facilities, rather than the day-to-day running of council services that have to be paid for through a separate revenue budget.