PORTLAND, OR-Unico Properties LLC, a real estate investment and operating company and its investment partner Cigna Realty Investors, has attracted two new tenants to the Commonwealth Building in downtown Portland. The 215,000-square-foot 15-story office tower, located at 421 SW 6th Ave., will now serve as the new home for Northwest Energy Efficiency Alliance and Green Building Services. 

NEEA signed a long-term, full floor lease for approximately 20,000 square feet and GBS signed a long-term lease for approximately 10,000 square feet. With the expected move-in date of September 2010, both companies are moving to a larger space to accommodate their continued growth, according to a prepared statement

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