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CU-Boulder South Annexation (Case LUR2019-00010)

Looking for information about South Boulder Creek flood mitigation project? Visit the project page.

Latest Information

Community Engagement

The City of Boulder invites community members to learn more about the process and provide feedback about the CU South Annexation. A period of community engagement is open through February 2021. Because of the risks associated with COVID-19, all engagement will be online.

Questionnaire & Input:  Via this questionnaire, answer questions and offer input now through mid-February 2021.

Project Timeline

This graphic timeline represents the overall annexation application process and what phase it is currently in, identified by "We Are Here". For more information leading up to this application submission, see Summary of Key Events below.

Meetings & Materials

Upcoming Meetings:  Friday, Feb. 19, 2021: City Council Process Subcommittee Meeting will be held from 11 a.m. to 12 p.m.: In light of the COVID-19 pandemic and restrictions on group meetings this meeting will be held online. This meeting is open to the public. The video conference link and call-in information will be posted below and on the project webpage, 24-hours prior to the meeting.

Briefing Book:  In anticipation of detailed negotiations between the city and CU Boulder, the city would like community members to review a newly created Briefing Book , which outlines the areas of focus the partners have identified and provides updated information on points of agreement, as well as topics that need further consideration.

Annexation Application:  The University of Colorado Boulder submitted amended annexation application materials on Oct. 5, 2020 for its South Campus (“CU South”) including: CU Response to City Comments pdf

Frequently Asked Questions: FAQs pdf

Public Comments

Read the public comments about the project Public Comments pdf Dec. 17, 2020

About CU South

With the approval of the Boulder Valley Comprehensive Plan Update in 2017, the City of Boulder and Boulder County approved new land use designations pdf and  guiding principles pdf for the CU South property. The guiding principles are now incorporated into Chapter 5 of the comprehensive plan and will be used to guide future decisions around annexation of CU South. The city is working to determine the conditions of annexation for “CU South” under which the University of Colorado’s South Campus would fulfill both the desires of the University system and meet the goals of the City of Boulder. The annexation agreement will be guided by the BVCP CU South Guiding Principles, and a modified annexation process that will provide opportunities to influence the annexation terms through city boards and commissions and the city council meetings.

If annexed, the CU South would come under the city's jurisdiction like the other campuses. Utility services also could be extended to the site. Annexation would  not  mean the city would own the site. Visit the CU Boulder project web page  for frequently asked questions and more.  


The University of Colorado Boulder submitted ammended annexation application materials on Oct. 5, 2020 for its South Campus (“CU South”) including: CU Response to City Comments pdf

You can review annexation information and CU Boulder's revised annexation application materials that were submitted Jan. 20, 2020

You can review CU Boulder's annexation application materials that were submitted on Feb. 4, 2019. You can also now review staff's response pdf  to the application materials. 

  • 1996:  Flatiron Companies sells the CU South property to CU Boulder (previously used for sand/gravel mining).
  • 2000 – 2015:  In response to requests by the university, the city opts to not consider changing the comprehensive plan land use designations for CU South until the “South Boulder Creek Floodplain Study is completed and there are further discussions with the university on the proposed development for the site.”
  • 2015:  City Council approves the South Boulder Creek Flood Mitigation Plan. The plan includes regional detention of flood water upstream of U.S. 36 on the CU South campus and along Colorado Department of Transportation right of way. With the flood mitigation plan adopted, the city reinitiates land use designation changes as part of the 2015 BVCP Major Update.
  • 2017:  The City of Boulder and Boulder County jointly adopts an update to the Boulder Valley Comprehensive Plan, including the CU South Guiding Principles.  
  • 2019:  CU Boulder submits an annexation application.
  • Jan. 17, 2020:  CU Boulder sends letter revising the annexation application (see below under Annexation Application)   
  • Sept. 11, 2019:  The Open Space Board of Trustees discussed the CU South project and provided feedback to staff.
  • Aug. 14, 2019 : The Open Space Board of Trustees held a study session to discuss the project and the approach for its Sept. 11 meeting.
  • Aug. 13, 2019 : Staff presented updated timelines pdf for the annexation negotiations and flood mitigation planning. CU Boulder representatives also addressed City Council. pdf​  
  • July 16, 2019:  City Council directed staff to continue work on the floodwall concept along the US36 CDOT right-of-way and engage the city’s Open Space Board of Trustees around options for mitigating the subsequent impacts to city open space. Council also directed staff to explore changes in the flood mitigation design storm and land use designations to satisfy the university’s interest in 129 acres of land designated Public.

​Past Meetings

  • Dec. 11, 2020:  City Council Process Subcommittee Meeting
  • Dec. 8, 2020:  Office Hours (#3) Meeting Notes pdf
  • Dec. 7, 2020:  Office Hours (#2) Meeting Notes pdf
  • Dec. 2, 2020: Martin Acres Neighborhood Association meeting with city staff as guests. To learn more, here is a copy of the Presentation pdf and the Meeting Notes pdf or you can watch a recording of the meeting:
  • Dec. 2, 2020: Office Hours (#1) Meeting Notes pdf
  • Nov. 17, 2020:  City Council will receive a staff briefing and presentation from CU Boulder about the annexation proposal. 
  • Nov. 13, 2020:  City Council Process Subcommittee Meeting and Agenda pdf
  • Nov. 5, 2020:  Planning Board will review a staff briefing about the proposal. Click to read the
    October 23, 2020:  Process Subcommittee Meeting. Agenda pdf City of Boulder Annexation Briefing Book pdf Engagement Window #2 pdf
  • June 16, 2020:  City Council, public hearing and consideration of a recommendation regarding the South Boulder Creek Flood Mitigation Project. View the meeting agenda here pdf. City Council voted unanimously to move forward with the 100-year South Boulder Creek Flood Mitigation project. Staff will begin preliminary planning for the project and was also directed to investigate upstream mitigation efforts. View the Presentation pdf.
  • June 3, 2020:  Open Space Board of Trustees (OSBT) was held at 6 p.m. F or more information about the meeting, view the  Meeting Packet pdf
  • May 20, 2020:  Community Information Session was an online meeting. City staff presented key findings from the recent flood design analysis, discussed BeHeard themes and provided an update on the annexation process. Meeting Agenda pdf. View the Presentation pdf or watch the Video
  • May 7, 2020:  Planning Board meeting was held online from 6-7 p.m. Meeting Agenda pdf
  • April 20, 2020:    Water Resources Advisory Council (WRAB) Because of the COVID-19 pandemic and restrictions on group meetings, the WRAB meeting was held online from 6 p.m.- 8 p.m. on Monday, April 20.  
  • Feb. 25, 2020:  Presentation on South Boulder Creek Conceptual Alternatives Analysis, City Council Study Session, 6 p.m. in Council Chambers in the Municipal Building 1777 Broadway. Packet pdf and Planning Reserve pdf
  • Feb. 4, 2020:  Presentation on South Boulder Creek Flood Mitigation Design and Tradeoffs, City Council Meeting, 6 p.m. in Council Chambers in the Municipal Building 1777 Broadway

Meeting Summaries

Contact Us about CU South or the Flood Mitigation Project

For more information about the CU South Annexation, Joanna Bloom at [email protected] or 303-817-1742.

To learn more about the South Boulder Creek Major Drainageway and Flood Mitigation Plan, visit the flood mitigation project page or contact Douglas Sullivan, Principal Engineer, at 303-441-3244 or [email protected]

[email protected]  ●  303-441-4907  ●   Sign Up for Email Updates