Implementation of Energy Efficiency, Renewables,

& Green BuildingJune 10, 2008

Teresa Clarke, Senior Project ManagerAffordable Housing Associates

Green building follows naturally from mission of non-profit developer

Green building principles further AHA’s mission statement, project goals and program requirements.

AHA’sKey Design Principles

• Long-term affordability• Client-centered, community-oriented, user-friendly• High-quality design, materials, & construction• Cost-effective development and operations• Durable and easy to maintain• Energy and resource efficient• Healthy and safe

Objectives of Green & Sustainable Building

• Sustainable Site/Smart Growth• Natural Resource Conservation• Energy Efficiency• Indoor Air Quality• And the newest kid on the block:

Reducing climate change impacts

Case Study: Ashby Lofts, Berkeley, CA

• Southwest Berkeley- Mixed land uses• San Pablo Ave State Hwy 123• Ashby Avenue State Hwy 13

Ashby Lofts-Sustainable Site

• Infill site rather than greenfield development• Transportation-

– TCAC = “Transit Amenities”=1/4 mile every 30 minutes

– LEED = ½ mile train, ¼ mile bus, bicycles for 15% of residents

• Neighborhood amenities– TCAC=Grocery, school, hospital, pharmacy, services

Infill site near transit

• Multiple connecting bus lines, future intercity bicycle path, 1-mile from BART

• Close to retail: Walgreens, OSH, future Berkeley Bowl Market

• Close to Aquatic Park & San Pablo Park, Malcolm X elementary school

Ashby Lofts- Sustainable Site

• Mixed-Use Zoning– 54 apts- 3BR, 2-BR 1-BR, ground floor retail

• High density development – 89 units/acre

• Parking– 15% reduction in parking required ratio

• Brownfield redevelopment– former asphalt processing plant

Ashby Lofts:Building Design Strategies

• Exterior balconies, no double loaded corridors• Courtyard open spaces between buildings• Natural light with tall windows• Double-height spaces in larger apts• Cross ventilation from front to back

Ashby Energy Efficient Systems

• Exceeded Title 24 Energy standards by 15%• 100% Florescent lighting• Timers, occupancy sensors, and controls for

lighting, fans and other HVAC equipment• Energy-efficient centralized boilers• PV Solar electric system• Energy STAR appliances

Ashby Lofts

Ashby Lofts

AHA Green Building Materials

• Fiber-cement siding• Low VOC paint,

carpet, pad, adhesives• Formaldehyde-free

insulation• Recycled-content

carpet, CRI Green label

• Natural linoleum flooring

• Granite countertops• Solid wood face frame

cabinets & doors

Ashby Lofts

Water Efficient Systems

• Low water use plantings • Drip irrigation• On-site rainfall retention & infiltration

– TCAC = first 1/2inch of rainfall in 24-hr• High efficiency toilets

– TCAC = 1.3 gpf• Flow restrictors at faucets

Madison @ 14th Apartments

Infill site near transit and services

Building Design

Energy & Resource Efficient Systems

PV Solar Electric System

Madison @ 14th Apartments

References for choosing green systems and materials

• Multi-family Green Building Guidelines– Alameda Co. Waste Management Authority

• Leadership in Energy & Environmental Design- (LEED)

• Build-it Green workshops