Orpington's historic Westcombe Park Rugby Football Club has appealed for the public's help in raising the money needed to secure its future.
The 110-year-old Goddington Lane club is used by 65,000 to 70,000 people, of all ages, a year.
People use it as both participants and supporters of rugby, football, cricket, tennis and other activities like judo, zumba and bridge.
The club has been pursuing a project to demolish and rebuild its unmaintainable sports club house for the last few years.
It has received support from a number of local community groups and sports providers but, with the project worth an estimated £630,000, more money is still needed.
Chairman of fundraising Michelle Harvey said: "We want to invite businesses and local people to come forward if they want to be involved the project.
"They can make donations and in return we can offer sponsorship or naming rights for elements of the building.
"We also want people to be aware, once the project is complete, we hope to involve more people from the community in our club, including providing facilities and sports for disabled people."
People who want to donate money to Westcombe Park should e-mail chairman Paul Woodhouse at firstname.lastname@example.org