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ENERGY STAR Labeled Building Profile

Westlake Gardens I
2535 Townsgate Road
Westlake Village, CA 91361
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Arden's Westlake Gardens I property located at 2535 Townsgate Road, Thousand Oaks, California is a 49,639 rentable square foot building that is 93% occupied. As part of the company's ongoing energy efficiency program, Westlake Gardens I, constructed in 1998, was chosen as a candidate for a building wide lighting retrofit. This addition was conceived as part of the overall efficiency enhancement at the property. A typical Arden lighting retrofit was accomplished by replacing T-12 light tubes with T-8 light tubes and installing electronic ballasts. The incandescent and fluorescent exit signs were replaced with LED exit signs using only two watts per fixture. Also installed were occupancy sensors throughout the building to reduce unoccupied lighting energy.

In addition to all the lighting and mechanical upgrades, many no cost / low cost measures were taken that reduced energy consumption. These included:

Arden's engineering department recognizes the financial impact of electrical demand charges, and as such, targets their operation towards peak demand reduction. By monitoring electrical demand levels and establishing a peak target, the energy management systems are programmed to selectively reset equipment to keep the demand within defined limits while never compromising occupant comfort.

The payback for these initiatives is approximately three and a half years with a marked increase in tenant satisfaction and comfort.

Arden Realty, Inc., with over 240 buildings in seven markets, is currently the largest commercial office landlord in Southern California, operating over 18 million rentable square feet with an additional 285,000 square feet under development. We have completed 32 HVAC plant retrofits, 47 EMS systems, 20 carbon monoxide sensor projects and 117 individual building lighting retrofits, including occupancy sensor installation. Arden Realty has also completed seven cogeneration plants and one solar photovoltaic array with a total capacity of three megawatts.





Please note: Narrative information in this profile has been provided by Arden Realty, Inc. or a representative of this facility. Other building information was verified and submitted to EPA at the time of application. Building energy performance, operating characteristics, and ownership/management may be subject to change over time.

Building Owner:*
Arden Realty, Inc.

Property Manager:*
Arden Realty, Inc.

Year(s) Labeled (Rating):
2000 (76)
2001 (76)
2002 (78)
2003 (76)
2004 (86)
2005 (86)
2006 (87)
2007 (87)
2010 (82)
2012 (89)
2013 (86)

Facility Type: Office

Total Floorspace: 47234 sf

Year Constructed: 1990

Contract Type: None

Technologies Used: