One of Downtown Madison’s most recognizable pieces of public art is scheduled to undergo a major change.

Since 1987, a mural has adorned the west side of a commercial building at the corner of North Bassett and West Mifflin streets and has touted locally grown foods for the former Mifflin Street Co-op, which called the site home from 1969 until it closed in 2006.

ABC for Health, a nonprofit public-interest law firm dedicated to linking children and families to health-care benefits and services, purchased the historic building in 2007 and now is looking for ideas to redo the mural. The wall, which faces Mifflin Street, has hosted a number of advertisements since the late 1800s and the current mural is the fourth in the last 50 years. The ABC for Health Mural Project, launched Tuesday, is a yearlong effort to refresh the wall but with public input. The organization is also looking for artists and those who want to contribute financial gifts toward the project, which includes a web page, www.safetyweb.org/mural.html.