Prospect North Public Realm Framework and Guidelines for Development—VERSION B—DRAFT 1/30/15
Appendix A: Sustainable Building Design Guidelines and Metrics This Appendix provides the recommended detailed performance requirements for sustainable buildings.
Guidelines and Rating Systems
There are three basic approaches to ensuring desired outcomes in sustainable development: (1) use an existing rating system or set of sustainable design guidelines, (2) develop a set of guidelines and standards customized to the needs and aspirations of a particular project, or (3) develop a hybrid that combines using a set of existing guidelines with certain performance outcomes. The third approach is recommended for Prospect North. This is consistent with the St. Paul Green Building Policy currently in effect. MINIMUM REQUIREMENT Each project must meet one of the following guidelines or rating systems. • LEED-‐NC (Silver) • Living Building Challenge • Minnesota B3 Guidelines (with Architecture 2030 energy program) • Green Communities (Affordable Housing)
Each of these systems include specific requirements for most environmental topic areas such as energy, water, materials, etc. These systems have procedures for calculation, certification and monitoring. In addition, every project must meet a specific set of performance targets. The sections that follow identify recommended performance thresholds and actions in seven areas—energy and climate change, water and wastewater, stormwater, materials, solid waste, ecological systems and soil.
Net'zero'
60%'less'
Average'building'
ENERGY&
Energy Use and Climate Change
CARBON&
ASPIRATIONAL TARGET The ultimate condition we seek is a community that uses zero net energy and produces zero greenhouse gas emissions. Production of net positive energy (a surplus) is even better. MINIMUM REQUIREMENT At a minimum, buildings in the Prospect Park district should meet energy use and greenhouse gas (GHG) emission targets specified in the Minnesota 2030 program as part of the B3 Guidelines: • 60% reduction by 2010 • 70% reduction by 2015 • 80% reduction by 2020 • 90% reduction by 2025 • 100% reduction by 2030 Targets for existing buildings are half those of new construction.
Energy use is measured in kBtu per square foot per year. GHG emissions are measured in pounds of CO2 equivalent per square foot per year.
Water and Wastewater
ASPIRATIONAL TARGET The ultimate condition we seek is a community that uses no more than five percent (5%) of the total daily water requirement/person imported to the site, zero gray water leaving the site, and ten percent (10%) or less black water leaving the site long-‐term operations. MINIMUM REQUIREMENT At a minimum, buildings in the Prospect North district should meet the water and wastewater minimum requirements from the Roadmap to Sustainability, St Paul Ford Site:
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