(A) (1) These provisions are intended to promote sustainable development, which reduces the long-term operational costs of buildings and minimizes adverse effects on the environment, public works infrastructure and occupant health and productivity.
(2) The following set of building practices is modeled on the “Green Building Rating System for New Construction & Major Renovations (LEED®-NC) Version 2.2” from the United States Green Building Council (USGBC). Categories include Sustainable Sites, Water Efficiency, Energy and Atmosphere, Materials and Resources, and Indoor Environmental Quality.
(B) Commercial development consisting of new buildings, or major renovations to existing buildings, shall achieve a minimum score of 18 out of 64 possible points by employing a combination of the following building practices:
(1) Multi-family residential development consisting of new buildings, or major renovations to existing buildings, shall achieve a minimum score of 15 out of 52 possible points.
(2) All other residential development consisting of new buildings, or major renovations to existing buildings, shall achieve a minimum score of 13 out of 49 possible points.
(C) (1) The city shall fit these criteria to its own climate, terrain, neighborhoods, environmentally sensitive areas and cultural values, or to adopt the currently available Leadership in Energy and Environmental Design (LEED®) Rating System.
(2) See Table 153.1003(A) below.
SUSTAINABLE SITES | |
Construction Activity Pollution Prevention: Implement a plan to prevent: (1) loss of soil during construction by runoff or wind erosion; (2) sedimentation of storm sewer or receiving streams; and (3) air pollution from dust or particulate matter. | 1 point |
Site Selection: Development is not located on: (1) prime farmland, defined by the United States Department of Agriculture; (2) previously undeveloped land at an elevation lower than 5 feet above the 100-year flood line, defined by the Federal Emergency Management Agency; (3) previously undeveloped land within 50 feet of a water body, defined by the Clean Water Act; (4) land that is habitat for threatened or endangered species, as defined by federal and state agencies; or (5) land that is within 100 feet of any wetlands, as defined by federal and state agencies. | 1 point |
Development Density and Community Connectivity: Development satisfies one or both of the following criteria: (1) Development is located on a previously developed site, within 1/2 mile of a residential zone or neighborhood with an average density of at least 7 units per acre. (2) Development is located on a previously developed site, within 1/2 mile of at least 10 compatible mixed uses, which include the following: (a) art gallery; (b) bank; (c) cellular telephone store; (d) community center; (e) convenience store; (f) cleaning and laundry; (g) day care; (h) fitness center; (i) gas station; (j) hardware store; (k) medical/dental; (l) outdoor café or Internet café; (m) pharmacy; (n) place of worship; (o) post office; (p) restaurant; (q) retail store; (r) supermarket; (s) theater; and (t) similar compatible mixed uses. | 1 - 2 points |
Alternative Transportation: Development satisfies one or more of the following criteria: (1) Public transportation access: Development is located: (a) within 1/2 mile of a commuter rail, light rail, or subway station; or (b) within 1/4 mile of a public bus line. (2) Bicycle storage: Provide secure bicycle racks and/or storage for 10% or more of all building occupants (commercial and multi-family only). (3) Electric and hybrid vehicles: Provide preferred parking for electric vehicles, hybrid vehicles, and other low-emitting or fuel-efficient vehicles achieving a minimum green score of 40 on the American Council for an Energy Efficient Economy annual vehicle rating guide, for 5% of the total vehicle parking capacity (commercial and multi-family only). (4) Parking capacity: Provide: (a) no new parking (all development); or (b) parking that does not exceed minimum local zoning requirements and preferred parking for shared vehicle usage for 5% of the total vehicle parking capacity (commercial and multi-family only). | 1 - 4 points |
Site Development: Development satisfies one or both of the following criteria: (1) Protect or restore habitat: (a) On greenfield sites, limit all site disturbance to 40 feet beyond the building perimeter;10 feet beyond surface walkways, patios, surface parking, and utilities less than 12 inches in diameter; 15 feet beyond primary roadway curbs and main utility branch trenches; and 25 feet beyond constructed areas with permeable surfaces. (b) On previously developed or graded sites, restore or protect a minimum of 50% of the site area (excluding the building footprint) with native or adapted vegetation. (2) Open space: Provide vegetated open space that exceeds zoning requirements by 25%._ | 1 - 2 points |
Storm Water Design: Development satisfies one or both of the following criteria: (1) Quantity control: (a) If existing imperviousness is 50% or less, implement a storm water management plan that: (1) prevents the post-development peak discharge rate and quantity from exceeding the pre- development peak discharge rate and quantity; or (2) protects receiving stream channels from excessive erosion by implementing a stream channel protection strategy and quantity control strategies. (b) If existing imperviousness is greater than 50%, implement a storm water management plan that decreases storm water runoff by 25%. (c) Use bioswales instead of street curbing or piping. (2) Quality control: Implement a storm water management plan that reduces impervious cover, promotes infiltration and captures and treats for reuse the storm water runoff from 90% of the average annual rainfall. | 1 - 2 points |
Heat Island Effect: Development satisfies one or both of the following criteria: (1) Non-roof: Place at least 50% of parking spaces under cover that has a Solar Reflective Index (SRI) of at least 29, or provide any combination of the following strategies for 50% of the site hardscape (commercial and multi-family only): (a) Shade (within 5 years of occupancy). (b) Paving materials that have an SRI of at least 29. (c) Open grid pavement system. (2) Roof: (a) Use roofing materials having an SRI of at least 78 for low-sloped roofs (slope 2:12) or 29 for steep-sloped roofs (slope 2:12) for a minimum of 75% of the roof surface; (b) (2) install a vegetated roof for at least 50% of the roof area; or (3) install a combination albedo-vegetated roof where (Area of SRI Roof / 0.75) + (Area of Vegetated Roof / 0.5) Total Roof Area. | 1 - 2 points |
Light Pollution Reduction: Development restricts interior and exterior lighting as follows: (1) Interior lighting: (a) the angle of maximum candela from each interior luminaire as located in the building shall intersect opaque building interior surfaces and not exit out through the windows (all development); or (b) non-emergency lighting is automatically controlled to turn off during non-business hours (commercial only). (2) Exterior lighting: (a) In park and rural settings, design exterior lighting so that all site and building mounted luminaires produce a maximum initial illuminance value no greater than 0.01 horizontal and vertical foot candles at the site boundary and beyond. (b) In residential areas, design exterior lighting so that all site and building mounted luminaires produce a maximum initial illuminance value no greater than 0.10 horizontal and vertical foot candles at the site boundary and no greater than 0.01 horizontal foot candles 10 feet beyond the site boundary. . In commercial/industrial and high-density residential areas, design exterior lighting so that all site and building mounted luminaires produce a maximum initial illuminance value no greater than 0.20 horizontal and vertical foot candles at the site boundary and no greater than 0.01 horizontal foot candles 15 feet beyond the site boundary. (c) In major city centers and entertainment districts, design exterior lighting so that all site and building mounted luminaires produce a maximum initial illuminance value no greater than 0.60 horizontal and vertical foot candles at the site boundary and no greater than 0.01 horizontal foot candles 15 feet beyond the site boundary. | 1 point |
WATER EFFICIENCY | |
Water Efficient Landscaping: Development satisfies one or both of the following criteria: (1) Reduce by 50%: Reduce potable water consumption for irrigation by 50% from a calculated midsummer baseline; and (2) No potable use or no irrigation: Eliminate the use of potable water for landscape irrigation. | 1 -2 points |
Innovative Wastewater Technologies: Either: (1) reduce potable water use for building sewage conveyance by 50% through the use of water-conserving fixtures or non-potable water; or (2) treat 50% of wastewater on site to tertiary standards. | 1 point |
Water-Use Reduction: Development satisfies one or both of the following criteria: (1) 20% reduction: Employ strategies to use 20% less water than the water-use baseline calculated for the building (not including irrigation); and (2) 30% reduction: Employ strategies to use 30% less water than the water-use baseline calculated for the building (not including irrigation). | 1 -2 points |
ENERGY AND ATMOSPHERE | |
Minimum Energy Performance: Design the building project to comply with both: (1) the mandatory provisions of American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc./Illuminating Engineering Society of North America (ASHRAE/IESNA) Standard 90.1-2004; and (2) the prescriptive requirements or performance requirements of ASHRAE/IESNA Standard 90.1-2004. | 1 point |
Fundamental Refrigerant Management: Zero use of chlorofluorocarbons (CFC)-based refrigerants in new base building heating, ventilation, air-conditioning and refrigeration (HVAC&R) systems. When reusing existing base building HVAC equipment, complete a comprehensive CFC phase-out conversion prior to project completion. | 1 point |
Optimize Energy Performance: Using the Building Performance Rating Method in Appendix G of ASHRAE/IESNA Standard 90.1-2004, demonstrate an improvement in the proposed building performance rating compared to the baseline requirement by achieving one of the following energy cost savings percentages: | 1 - 10 points | ||
New Buildings | Renovations | Points | |
10.5% | 3.5% | 1 | |
14.0% | 7% | 2 | |
17.5% | 10.5% | 3 | |
21.0% | 14% | 4 | |
24.5% | 17.5% | 5 | |
28.0% | 21% | 6 | |
31.5% | 24.5% | 7 | |
35.0% | 28% | 8 | |
38.5% | 31.5% | 9 | |
42.0% | 35% | 10 | |
On-Site Renewable Energy: Use on-site renewable energy systems (e.g., solar and wind systems) to offset building energy cost: | |||
% Renewable Energy Points | 1 - 3 points | ||
2.5% | 1 | ||
7.5% | 2 | ||
12.5% | 3 | ||
Enhanced Refrigerant Management: Do not use refrigerants, or select refrigerants and base building HVAC&R systems that minimize or eliminate the emission of compounds that contribute to ozone depletion and global warming. | 1 point | ||
Green Power: Provide at least 35% of the building’s electricity from renewable sources (e.g., solar and wind power) by engaging in at least a two-year renewable energy contract. | 1 point | ||
MATERIALS AND RESOURCES | |
Storage and Collection of Recyclables: Designate an area for the collection and storage of recyclables, including paper, corrugated cardboard, glass, plastics and metals. | 1 point |
Building Reuse: Development satisfies one or more of the following criteria: (1) maintain 75% of existing walls, floors and roof: Maintain at least 75% (based on surface area) of the existing building structure and envelope (excluding hazardous materials); (2) maintain 95% of existing walls, floors and roof: Maintain at least 95% (based on surface area) of the existing building structure and envelope (excluding hazardous materials); and (3) Maintain 50% of interior non-structural elements: Maintain at least 50% of the existing interior non-structural elements (e.g., interior walls, doors, floor coverings, and ceiling systems). | 1 - 3 points |
Construction Waste Management: Development satisfies one or both of the following criteria: (1) divert 50% from disposal: Recycle and/or salvage at least 50% of non-hazardous construction and demolition debris; and/or (2) divert 75% from disposal: Recycle and/or salvage at least 75% of non-hazardous construction and demolition debris. | 1 - 2 points |
Materials Reuse: Development satisfies one or both of the following criteria: (1) 5%: Use salvaged, refurbished, or reused materials, constituting at least 5% of the total value of materials for the project; and/or (2) 10%: Use salvaged, refurbished or reused materials, constituting at least 10% of the total value of materials for the project. | 1 -2 points |
Recycled Content: Development satisfies one or both of the following criteria: (1) 10%: Use materials with postconsumer + 1/2 preconsumer recycled content, constituting 10% of the total value of materials for the project; and/or (2) 20%: Use materials with postconsumer + 1/2 preconsumer recycled content, constituting 20% of the total value of materials for the project. | 1 -2 points |
Regional Materials: Development satisfies one or both of the following criteria: (1) 10%: Use building materials or products that have been extracted, processed, and manufactured regionally, constituting 10% of the total value of materials for the project; and/or (2) 20%: Use building materials or products that have been extracted, processed, and manufactured regionally, constituting 20% of the total value of materials for the project. | 1 - 2 points |
Rapidly Renewable Materials: Use building materials and products made from plants that are typically harvested within a 10-year cycle or shorter, constituting 2.5% of the total value of materials for the project. | 1 point |
Certified Wood: For a minimum of 50% of the project’s wood building components, use wood-based materials and products that are certified in accordance with the Forest Stewardship Council’s Principles and Criteria. | 1 point |
INDOOR ENVIRONMENTAL QUALITY (COMMERCIAL ONLY) | |
Minimum Indoor Air Quality Performance: Meet the minimum requirements of Sections 4 through 7 of ASHRAE Standard 62.1-2004, Ventilation for Acceptable Indoor Air Quality. | 1 point |
Increased Ventilation: For mechanically ventilated spaces, increase breathing zone outdoor air ventilation rates to all occupied spaces by at least 30% above the minimum rates required by ASHRAE Standard 62.1-2004. For naturally ventilated spaces, design systems for occupied spaces to meet the recommendations set forth in the Carbon Trust “Good Practices Guide 237.” | 1 point |
Low-Emitting Materials: Development satisfied one or more of the following criteria: (1) adhesives and sealants: Adhesives, sealants, and sealant primers used on the interior of the building comply with the requirements set forth in South Coast Air Quality Management District Rule #1168. Aerosol adhesives used in the interior of the building comply with the requirements set forth in Green Seal Standard GS-36. (2) paints and coatings: Architectural paints, coatings, and primers applied to interior ferrous metal substrates comply with the requirements set forth in Green Seal Standard GS-11. Anti-corrosive and anti-rust paints applied to interior ferrous metal substrates comply with the requirements set forth in Green Seal Standard GC-03. Clear wood finishes, floor coatings, stains, and shellacs applied to interior elements comply with the requirements set forth in South Coast Air Quality Management District Rule #1113. (3) carpet systems: All carpet installed in the building interior complies with the testing and product requirements of the Carpet and Rug Institute’s Green Label Plus program. (4) composite wood and agrifiber products: Composite wood and agrifiber products used on the interior of the building contain no added urea-formaldehyde resins. | 1 - 4 points |
Indoor Chemical and Pollutant Source Control: Employ permanent entryway systems to capture dirt and particulates from entering the building at all entryways that are directly connected to the outdoors. Where hazardous gases or chemicals may be present or used, exhaust each space sufficiently to create negative pressure with respect to adjacent spaces with the doors to the room closed. In mechanically ventilated buildings, provide occupied areas with air filtration media that provides a Minimum Efficiency Reporting Value of 13 or better. | 1 point |
Controllability of Systems: Development satisfied one or both of the following criteria: (1) lighting: Provide individual lighting controls for at least 90% of the building occupants and lighting controls for all shared multi-occupant spaces. (2) thermal comfort: Provide individual comfort controls for at least 50% of the building occupants and comfort controls for all shared multi-occupant spaces. | 1 -2 points |
Thermal Comfort Design: HVAC systems and the building envelope meet the requirements set forth in ASHRAE Standard 55-2004. | 1 point |
Daylight and Views: Development satisfied one or both of the following criteria: (1) daylight 75% of spaces: Achieve a minimum daylight illumination level of 25 foot candles in at least 75% of all regularly occupied areas; and/or (2) views for 90% of spaces: Achieve a direct line of sight to the outdoors for building occupants in 90% of all regularly occupied areas. | 1 - 2 points |
(Ord. 3020, passed 9-10-2013, § 5.17; Ord. 3160, passed 1-9-2018)