This field house integrates an indoor soccer field with sustainable design, responding to Ann Arbor’s environmental and social contexts. Inspired by the RiverSafe Project, it features a rain garden that enhances water infiltration and ecological education. A community sauna utilizes greywater for heat storage, promoting circular sustainability. Positioned near the Huron River, the design fosters a deep connection between architecture, nature, and community, transforming the space into a hub for environmental engagement and conservation.