How Helmus Building Made Green History in Grand Rapids

Before earning its reputation as a green building pioneer, Bazzani Associates was best known for its restoration of historic buildings. Today known for its mission to design and build sustainable communities by rehabilitating urban environments, the Helmus Building was one of its most notable renovations, and an important green building in the region. It is located in the Lower Grand River watershed, with direct drainage to the river.

Home to the Bazzani office and other commercial and residential spaces, the 9,480-square-foot building was the first LEED-certified structure in Grand Rapids and among the first properties with a live green roof. 

(Update 2025: Bazzani left the property when it was acquired and rebranded as Cella Building Co.).

Located on Wealthy Street, the Helmus Building was built in 1918 and was originally used as a warehouse for dry storage. Vacant and in desperate need of repairs, Bazzani purchased the building with the goal of “demonstrate[ing] the economic, social and environmental value of sustainable design” to the community. It is certified LEED Silver, reducing utility costs by approximately 40% while increasing indoor air quality. The 2,511-square-foot vegetated green roof features patio access for tenants; the sedums planted in the roof require little water and maintenance. It reduces stormwater runoff from the building, helps release moisture, insulate the building, and prolongs the life of the roof.

Paving the way for future sustainable infrastructure

In 2012, parking lot adjustments presented an opportunity to install leaching basins underneath the parking garage that now captures and infiltrates approximately 90% of the remaining stormwater runoff. The use of green stormwater infrastructure provides an additional benefit to neighbors by reducing urban street flooding. Together with the other green building features, it has encouraged further sustainable development through leadership in the community, setting an example that has helped inspire a neighborhood-scale restoration effort.

Among several recognitions, the Helmus Building received the 2003 “Outstanding Historic Preservation Project Award” from the Grand Rapids Historic Preservation Commission.