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ENERGY STAR Labeled Building Profile

The West Building
835 East 2nd Avenue
Durango, CO 81301
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The West Building is a four-story commercial office building located in historic downtown Durango, Colorado. The building was designed by architect Joe Wilson in the International Style with steel, glass, and concrete as the predominant materials. The style flourished after World War II and into the 1970's. It was most likely the first building of curtain wall construction in Durango, whereby the exterior walls are non-load bearing and merely keep out the weather. Construction was completed in June of 1959 with the initial tenants being petroleum companies who were developing the recent oil and gas discoveries in the San Juan Basin.

In 2007, the Building Manager contacted Jeremy Rivera Consulting, LLC to assess building efficiency and make recommendations for improvements. An energy audit and analysis was performed and a computer model of the building was constructed to predict the results of various energy efficiency improvements. The study revealed that many of the building's systems were at the end of their useful lives and there were many opportunities for improvements that would increase the building's overall efficiency and comfort.

The building underwent a significant Heating, Ventilation and Air Conditioning (HVAC) system renovation beginning in June 2008, designed by Dan Hopper of Animas Engineering. The original steam boiler was replaced with several smaller and more efficient condensing boilers that produce hot water for heating. In addition, the original multi-zone air handling units were replaced with new variable air volume air handlers capable of providing a more comfortable environment for the tenants, while significantly reducing energy consumption. Finally, the original pneumatic HVAC control system was replaced with a state of the art, building automation system operable via the Internet. Jeremy Rivera Consulting was retained during the renovation to provide commissioning services and ensure the system was fully functional upon completion.

While the HVAC renovation provided significant energy savings and increased comfort for the tenants, the building owners did not stop there. In 2010, they removed the original T12 fluorescent lighting fixtures with magnetic ballasts and replaced them with more efficient T8 fluorescent fixtures with electronic ballasts. The lighting retrofit immediately improved the working environment, providing more uniform light distribution with yet another considerable reduction in energy consumption.

As a result of the HVAC and lighting renovations, the West Building has reduced its annual energy costs by 40 percent and provided a greatly improved environment for its tenants. The energy savings are equivalent to the amount of electricity consumed by 386 single-family homes and includes a greenhouse gas reduction of more than 813,000 pounds of carbon dioxide annually. The building received its ENERGY STAR score in 2012 and is performing better than 84 percent of commercial office buildings nationwide.

The West Building has made sustainability a core component of its goal to be a good steward of the environment. Building management has provided recycling bins within the building and is purchasing renewable energy credits from the local electric utility, so that 100 percent of electricity consumption is coming from "green" sources, such as solar, wind, and hydropower. Further improvements are being considered, including the installation of occupancy sensors to further increase the lighting system efficiency.

When the West Building was built in 1959, energy efficiency was not an important consideration for the owners or tenants. Today, the West Building's renovation has made it a leader in energy efficiency and sustainability.




"4CORE applauds the West Building and our landlord for investing in these vast improvements and for receiving the prestigious ENERGY STAR. In addition to substantial savings for both energy costs and energy efficiency, the building is far more comfortable for the tenants that work here every day."

-- Greg Dubit, Executive Director, Four Corners Office of Resource Efficiency (4CORE)

Please note: Narrative information in this profile has been provided by Anesi Enterprises LLC, Maynes Family LLC, Thomas Shipps, and Janice Sheftel 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.

Service Provider:
Jeremy Rivera Consulting, LLC

Building Owner:*
Anesi Enterprises LLC, Maynes Family LLC, Thomas Shipps, and Janice Sheftel

Property Manager:*
The West Building

Year(s) Labeled (Rating):
2012 (84)

Facility Type: Office

Total Floorspace: 55875 sf

Year Constructed: 1959

Contract Type: Multiple Contractor Contracts
Financing Type: Internal Capital

Technologies Used:
   Stage 1-Recommissioning
   Stage 2-Lighting
   Stage 3-Load Reductions
   Stage 4-Fan Systems
   Stage 5-Heating and Cooling Plant