Case Study: Orange Gardens

Property ProfileOrange Garden
Location: 12510 Oak Knoll Road, Poway, CA 92064
Building/Units/Stories: 6/52/2
Year Built: 1978
Energy Upgrade Program: Energy Upgrade CaliforniaTM in San Diego County
Owner/Developer: Affirmed Housing Group
Project Team: Scott Riffenburgh, Emerald Impact and Micah Spano, Affirmed Housing

Savings Snapshot
Total Project Cost: $5,184,255 (Includes all building renovation costs including energy upgrades)
Program Incentive: $44,800
Percent Improvement: 19.10%

Project Description
Built in 1978, Orange Gardens Apartments is a 52-unit, two story apartment community that includes one-, two- and three-bedroom units. The community was previously a market-rate property. Affirmed Housing Group, a developer that specializes in building high quality and sustainable affordable housing across southern California, purchased the property in 2011, with plans to convert the community to affordable housing units. In September of 2011, Affirmed began extensive internal and external restoration, resulting in improved resident comfort and safety.

The new owners, Poway Family Housing Partners, LP, and residents old and new alike are absolutely ecstatic about the building renovation and energy upgrades, resident living and the environment is improved, safer and energy costs are way down.

— Chris Earl,
Project Manager, 
Affirmed Housing Group


Energy Upgrade Description
This affordable housing project completed extensive energy upgrades in all six buildings. Electric radiant heating and room air conditioners were replaced with new high performance heat pumps and a new ductwork system, providing improved comfort for all residents. All of the windows were replaced with dual pane, vinyl framed, high performance windows. New cool roofs and roof insulation were added to all buildings. Indoor and outdoor lighting was replaced with high efficiency lighting and sensor controls were added to outdoor lighting. All refrigerators and dishwashers in the units were upgraded to ENERGY STAR® models.

Benefits of Multifamily Home Upgrades
Overall building energy use was reduced by an estimated 19 percent resulting in major energy cost savings, especially during peak energy use times. The new cool roof, roof insulation, heat pumps and water heaters resulted in improved resident comfort, reduced electricity and natural gas costs for both residents and building owners. The new windows, lighting upgrades and lighting controls resulted in improved daylighting, and light levels (inside and out), reducing heat gains from the old windows and incandescent lighting.

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