La Primavera is a 1925 stone residence in Chestnut Hill undergoing a full historic rehabilitation and deep energy retrofit. Designed and expanded by architect Robert McGoodwin, the home embodies Italian Revival character—from its symmetrical stone façade and arched limestone entry to its original window assemblies and wrought-iron details attributed to Samuel Yellin.

This Demonstrator was created to show what it really takes to bring a century-old home into the 21st century: preserving historic integrity while integrating geothermal wells, a solar roof, high-efficiency HVAC, electrification, and building-envelope improvements.

Scope 3, Inc.—the operator of this Demonstrator—works across the built environment and industry to advance practical net-zero pathways, spanning deep-energy retrofits, industrial decarbonization, and carbon-dioxide removal.

Through National Park Service (NPS) Parts 1, 2, and 3, each intervention—structural, mechanical, and material—has been evaluated against federal preservation standards. The Demonstrator is both a case study and a practical resource for homeowners, practitioners, policymakers, and entrepreneurs working to decarbonize buildings while respecting heritage.

The goal is simple:

Make the pathway to net-zero clear, replicable, and grounded in real-world experience.

This site offers insights, templates, and workflows developed through La Primavera’s retrofit journey, and provides three pathways for deeper learning:

• Historic Preservation & Rehabilitation

• Integrated Energy Systems

• Climate Business & Finance

Together, these pathways reveal how design, engineering, policy, and economics must work in concert to build a resilient, low-carbon future—starting one building at a time.