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ENERGY STAR Labeled Building Profile

143 Union
143 Union Blvd suite 650
Lakewood, CO 80228
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143 Union Square is a 10-story Class A office building located just west of Denver, Colorado. It is situated within the One Union Square campus of the Union Corridor submarket. The building contains 188,500 square feet of space and houses a wide variety of tenants, including a Wells Fargo Bank on the first floor. There is ample surface parking surrounding the building, along with bike racks and numerous bus lines in close proximity.


The building is ventilated and conditioned by 11 individual air handling units. There is one air handling unit on each floor serving the tenant and common areas. The air handling units are located in a central mechanical core on each floor. The building is capable of supplying 100 percent outdoor air by utilizing the outside air economizers.


In addition to ENERGY STAR certification, the building has also been certified as LEED Silver.






Please note: Narrative information in this profile has been provided by GPI-Union, LP 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:*
GPI-Union, LP

Property Manager:*

Year(s) Labeled (Rating):
2008 (79)
2009 (84)
2010 (86)
2011 (92)
2012 (87)
2013 (80)
2014 (86)
2015 (92)
2016 (85)

Facility Type: Office

Total Floorspace: 198467 sf

Year Constructed: 1981

Contract Type: None

Technologies Used:
   Stage 2-Lighting
   Stage 3-Load Reductions
   Stage 4-Fan Systems
   Stage 5-Heating and Cooling Plant
   Other Technologies/Strategies