Return to ENERGY
Find More Facilities
ENERGY STAR Labeled Buildings & Plants
Facility Profile ENERGY STAR Logo

ENERGY STAR Labeled Building Profile

1050 Walnut
1050 Walnut Street
Boulder, CO 80302
Map It!


Constructed in 1983, 1050 Walnut is a five-story, Class A, brick office building consisting of more than 109,700 rentable square feet. It is located in the heart of downtown Boulder, Colorado, at the foothills of the majestic Flatiron Mountains. Situated on the southwest corner of Walnut and Eleventh Streets, the building is located just steps from the beautiful and historic Pearl Street pedestrian mall, as well as Boulder Creek. 1050 Walnut's major tenants are Crestone Capital Advisors, a global investments firm; Siemens Corporation's continental wind energy research office; and Southwest Research Institute, a nonprofit research firm specializing in outer space exploration technology.


1050 Walnut features large balconies on the second through fifth floors, which offer stunning views of both the mountains and the city. The property's interior was renovated in 2006. The building's exterior was completely redesigned in 2008. 1050 Walnut has an onsite management office, tenant parking, and upgraded finishes throughout the common areas and tenant spaces.






Please note: Narrative information in this profile has been provided by ParkCal, LLC 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:
Transwestern Commercial Real Estate

Building Owner:*
ParkCal, LLC

Property Manager:*

Year(s) Labeled (Rating):
2011 (82)
2012 (83)
2013 (79)
2017 (75)

Facility Type: Office

Total Floorspace: 115865 sf

Year Constructed: 1983

Contract Type: Internal Resources
Financing Type: Equipment Lease

Technologies Used:
   Stage 1-Recommissioning
   Stage 2-Lighting
   Stage 3-Load Reductions