# SAM #6CO0558 GSA Seeks Fully Serviced Downtown Denver Office Space **Buyer:** GSA PBS Office of Leasing **Posted:** October 14, 2026 **Respond By:** November 03, 2026 **Identifier:** 6CO0558 **NAICS:** 531120 GSA is seeking a fully serviced office lease in downtown Denver for government use. - **Government buyer:** General Services Administration (GSA), Public Buildings Service, Office of Leasing; Katherine Roxborough is named as the contact. - **Requirement:** Lease 21,476–22,550 ABOA square feet of office space within the area bounded by Market Street, 20th Street, Champa Street, and 17th Street in Denver. - **Parking:** 20 structured spaces, including 2 reserved spaces, in an attached, covered garage. - **Space and access requirements:** Contiguous, self-contained space on one floor other than the first floor, with access to a loading dock and freight elevator. - **Restrictions and standards:** Space cannot be in a courthouse, co-located with law enforcement, or located in the 1-percent-annual-chance floodplain. It must meet Government fire safety, accessibility, seismic, and sustainability requirements. - **Lease term:** 120 months total, comprising a 60-month firm term and one 60-month option. - **OEMs and vendors:** No commercial OEMs, landlords, or vendors are named in the notice. ### Description

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:

  1. Offered space cannot be located within a courthouse or co-located with a law enforcement agency. 
  2. Offered space cannot be located on the first floor. The space must be contiguous, self-contained, and located on a single floor.
  3. Offered space must provide access to a loading dock and freight elevator.
  4. 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: https://acquisition.gov/FAR-Case-2019-009/889_Part_B.

Expressions of interest must Include.

  1. Building name and address;
  2. Contact information and e-mail address of offeror’s authorized representative;
  3. ABOA square feet and rentable square feet available, identifying the specific floors and square footages;
  4. Asking full-service rental rate per ABOA square feet and rentable square feet inclusive of a standard GSA warm-lit shell, a tenant improvement allowance of $56.59/ABOA square foot, and a BSAC allowance of $12.00/ABOA square foot;
  5. Operating costs per ABOA square feet and rentable square feet included in the full-service rates;
  6. Submission by anyone other than the owner or manager of a property must be accompanied by written consent from the ownership granting authority to the representative in providing the information to the Government.

Expressions of Interest Due: 11/03/2026

Market Survey (Estimated): TBD

Occupancy (Estimated): 2/28/2029

Send Expressions of Interest to:

Name: Katherine Roxborough

Title: GSA Broker Services Contractor - Cushman & Wakefield

Email Address: katherine.r.roxborough@gsa.gov

Government Contact Information:

Lease Contracting Officer: Kristine Deltorto

Project Manager: Eric Cooley

Broker: Katherine Roxborough

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[View original listing](https://sam.gov/opp/115e2e33298a46678a0aea219c0c1632/view)