From the notice

U.S. GOVERNMENT NOTICE OF LEASE REQUIREMENT The General Services Administration (GSA) is seeking expressions of interest from owners and authorized representatives of properties meeting the following requirements: State: Colorado City: Denver Delineated Area: North: Market Street East: 20th Street South: Champa Street West: 17th Street Minimum Sq. Ft. (ABOA): 21,476 Maximum Sq. Ft. (ABOA): 22,550 Space Type: Office Parking Spaces (Total): 20 Parking Spaces (Structured): 20 Parking Spaces (Reserved): 2 Full Term: 120 months Firm Term: 60 months Option Term: One 60-month option Additional Requirements: Offered space cannot be located within a courthouse or co-located with a law enforcement agency. Offered space cannot be located on the first floor. The space must be contiguous, self-contained, and located on a single floor. Offered space must provide access to a loading dock and freight elevator. Parking must be provided in an attached, covered parking garage. Offered space must meet Government requirements for fire safety, accessibility, seismic, and sustainability standards per the terms of the Lease. A fully serviced lease is required. Offered space shall not be in the 1-percent-annual chance floodplain (formerly referred to as 100-year floodplain). Entities are advised to familiarize themselves with the telecommunications prohibitions outlined under Section 889 of the FY19 National Defense Authorization Act, as implemented by the Federal Acquisition Regulation (FAR). For more information, visit: [link] Expressions of interest must Include. Building name and address;

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