This dataset provides an overview of the design, development, and technical specifications of for a community-scale geothermal heating and cooling system in Carbondale, Colorado. This thermal energy network (TEN) within the town's Three-Two Zero Energy District (32ZED) is part of the town's efforts to achieve carbon neutrality by 2050. Provided here is a case study report detailing project objectives, technical and environmental assessments, building energy modeling, retrofit designs, and community engagement efforts. The dataset also contains design drawings for TEN components, including an Ambient Temperature Loop, Geo-Borefield, High Temperature Loop, and Mechanical and Electrical Designs for retrofitting the Third Street Center in Carbondale. These drawings cover infrastructure like ATL pumps, heat exchangers, boilers, and HTL heat pumps, offering technical blueprints that complement the report?s findings.