Entrance to DPR San Francisco Office, 945 Front Street. Photo courtesy of DPR Construction.
Siegel & Strain Architects, in collaboration with Integral Group: Deep Green Engineering, recently completed the Total Carbon Study of the DPR San Francisco Office Building. The project converted an existing, two story office building in San Francisco into a net positive building.
Specifically, this study:
- Signals the need for changes in climate action policy that prioritize deconstruction and reuse over demolition.
- Quantifies saved/avoided carbon attributed to retrofitting an existing building compared to building a new similar structure.
- Demonstrates nearly 70% reduction in the embodied carbon associated with building material supply chain between a new construction and significantly reused existing building structure.
- Quantifies the saved/avoided carbon from converting an average, two story office building into a net positive building. Net positive buildings generate more energy than they consume on an annual basis.
- Embodied, upstream supply chain from building materials, and
- Operating emissions from existing buildings.
Total Carbon (MTons CO2e) 50 year life comparison of Traditional Code-Compliant New Construction Office Building vs. the DPR San Francisco Net Positive Existing Building Retrofit Office.
The Total Carbon Study makes the case for maximum reuse, coupled with deep green energy retrofits (net positive when conditions allow) as an effective strategy to produce the maximum amount of carbon savings in the shortest possible time.
To read the entire Total Carbon Study, download this PDF