MBC10 Exterior Improvements

Project Details:

Project Start Date: March, 2018

Ongoing Program: Y/N

Submitting Department: MBC

Contact Person: Royce Wiens

Level of Need: Important

Estimated Project Completion Date: 2024

Department Priority: 7

Contact Phone Number: (612) 596-9522

Website: http://www.municipalbuildingcommission.org/

Project Location:

Address: 350 South Fifth Street

City Sector: Downtown

Affected Neighborhoods: Downtown West

Affected Wards: 7

Minneapolis City Hall/Hennepin County Courthouse

Project Description:

This project helps to preserve and protect the City Hall / Courthouse building by addressing issues and concerns related to waterproofing, exterior doors and windows, masonry, exterior lighting, and ground level access control.

Preserving this asset involves addressing building envelope issues on a regular basis. This project is primarily about asset preservation, but also about tenant comfort. The project includes limited waterproofing replacement, masonry repointing and repairs, limited exterior window repair, door replacement and repair, clock tower antenna removal, exterior lighting, and exterior access control.

The City Hall/Courthouse is on the National Register of Historic places and it is an iconic historic landmark for Minneapolis, Hennepin County, and Minnesota. Approximately 60 percent of the useable space is occupied by City of Minneapolis offices and the balance by Hennepin County programs.

Phase 1 including the masonry repainting and repair, exterior window sealant replacement and broken glass replacement, gutter repairs, and heat tape replacement for the East, North, and West facades is completed.

Phase 2 includes the same work for the South façade and tower along with replacement of the 4th Street doors. The South façade work is completed and the 4th Street door replacement will be completed by mid-June 2021.

Phase 3 is scheduled for 2024 and will address remaining interior courtyard masonry and waterproofing work, interior court window sealant and broken glass replacement, perimeter door work, tower antenna removal, and ground level access control.

Purpose and Justification:

Over the past several years, the MBC has identified envelope problems related to waterproofing, masonry, windows and doors. If left unaddressed, the elements will cause further damage to the building and equipment in the building. The cost for repairs will only increase.

Waterproofing/ Heat tape / Sub-Basement Work

Remaining areas of concern for waterproofing are the roofs for shafts 1-4, roofing and flashing around the base of shafts 1 and 3, and the 13th floor of the clock tower. The waterproofing, flashing and heat tape work around shafts 2 and 4 were completed prior to this capital project.


The MBC has now addressed the highest priority masonry problems. The remaining scope of work includes masonry repairs and repointing of all brick facades at the interior courtyard.


Design development level estimates have identified that the cost for the planned interior repairs for all windows below the 4th floor will be over $2M while bringing small improvements in thermal comfort. So this portion of the project has been removed and the MBC will focus on future plans to replace the windows. The lower cost exterior sealant replacement with replacement of broken glass is still being done in conjunction with the masonry work to reduce air infiltration. The remaining window scope includes all interior courtyard windows replaced prior to 2000.

Exterior Lighting and Antenna Removal

The exterior lighting project was completed in coordination with Exterior Improvements – Phase 2. Removal of the antennas will be a part of the Phase 3 scope.

Ground Level Access Issues

This work includes improvements to the vehicle gate near the corner of 4th Street and 4th Avenue and an existing 3rd Avenue moat gate. Two (2) additional gates will be added at the 3rd Avenue moat to limit access from the public sidewalks.

Project Visuals and Map:

City Hall/Courthouse Exterior

Project Cost Breakdown

Department Funding Request


Have Grants for this Project been secured? No

Describe status and timing details of secured or applied for grants or other non-City funding sources:

Describe any collaborative arrangements with outside project partners, including who they are and what their role is with the project:

This project is coordinated with the Hennepin County Capital Funding program. By agreement, both City and County Capital Programs must fund the project on a dollar for dollar basis for the project to proceed.


State Law Chapter 462.356 (Subd. 2) requires review of all capital improvements for compliance with the comprehensive municipal plan. Chapter 13, Section 4 of the City Charter requires Location and Design Review for the purpose of approving the sale of bonds for these projects.

The Minneapolis Plan for Sustainable Growth - references

Public Services and Facilities: Through sound management and strategic investments, Minneapolis will maintain and develop public services and facilities that promote health, safety and an enhanced quality of life for all members of this growing community.

Policy 5.1: Coordinate facility planning among city departments and public institutions.

5.1.1 Encourage communication and coordination among city departments, Hennepin County, Minneapolis Park and Recreation Board, and Minneapolis Public Schools to share use of facilities.

5.1.2 Explore opportunities for co-location of public services where appropriate.

5.1.4 Develop cooperative programming that takes advantage of the resources and missions of various public institutions. Policy 5.4: Enhance the safety, appearance, and effectiveness of the city’s infrastructure.

5.4.1 Maintain and improve the quality and condition of public streets, sidewalks, bridges, water systems, and other public infrastructure.

5.4.2 Plan for and provide public facilities which anticipate growth needs, use fiscal resources efficiently, and meet realistic timelines.

5.4.3 Prioritize capital improvements according to an objective set of criteria consistent with adopted goals and policies, including those of The Minneapolis Plan.

5.4.4 Encourage the creation of special service districts downtown and in other business districts in order to enhance streetscapes, provide security services, and maintain the public realm.

Environment: Minneapolis will promote sustainable design practices in the preservation, development, and maintenance of its natural and built environments, provide equal access to all of the city’s resources and natural amenities, and support the local and regional economy without compromising the needs of future generations.

Policy 6.1: Integrate environmental, social and economic goals into decision-making processes at all levels.

6.1.1 Increase usage of renewable energy systems consistent with adopted city policy.

6.1.2 Promote efficient use of natural and limited resources when renovating, constructing or operating city facilities and in general city operations.

6.1.3 Apply the city-adopted US Green Building Council’s LEED (Leadership in Energy and Environmental Design) standards and the State of Minnesota Sustainable Building B3 Guidelines as tools for design and decision-making when developing, renovating or operating city facilities.

6.1.4 Invest in energy efficient heating ventilation and air conditioning (HVAC) and lighting systems, controls and sensors that minimize emission and noise, use of renewable fuel sources, and utilization of best available control technology to minimize particulate emissions.

Policy 6.3: Encourage sustainable design practices in the planning, construction and operations of new developments, large additions and building renovations.

6.3.1 Encourage developments to implement sustainable design practices during programming and design, deconstruction and construction, and operations and maintenance.

6.3.5 Support the development of sustainable site and building standards on a citywide basis.

6.3.9 Develop regulations to further reduce the heat island effect in the city by increasing green urban spaces for parks and open spaces, including shading of parking lots, sidewalks and other impervious surfaces, promoting installation and maintenance of green roofs and utilization of highly reflective roofing and paving materials.

6.3.10 Promote climate sensitive site and building design practices.

Provide the date that Location and Design Review was conducted for the project, the outcome of that analysis and the date formal action was taken by the Planning Commission:

Not Applicable

Economic Development

Will the project contribute to growth in the city’s tax base? No impact on existing tax base

Describe the economic development impact of the project: Not Applicable

Does the project support redevelopment opportunity that without the project would be infeasible? Not Applicable


Is the proposed project on an existing or planned transitway, transit route, or high-volume pedestrian corridor? If yes, provide details on how the project will improve the transit and/or pedestrian experience. Not Applicable

Does the proposed project anticipate multi-modal enhancements (sidewalks, bicycle or transit facilities)? Provide details. Not Applicable

Is the right-of-way constrained and do you anticipate that modes of travel will be competing for space? Provide details, is there potential for innovative design options? Provide details

Not Applicable

Operating Impacts

Operations & Capital Asset Maintenance:

Is this request for new or existing infrastructure? Existing

What is the expected useful life of the project/Improvement? 30 years

Year that Operating Incr/(Decr) will take effect? 2021

What is the estimated annual operating cost increase or (decrease) for this project?

Any Prior Year Remaining Bond Authorizations? Phase 1 funds have been used in full and the MBC is currently evaluating how the small Phase 2 contingency amount will be utilized based on priorities.

Prior Year Remaining Bond Authorizations: Approx. $60,000.

Describe how operating cost increases or decreases were determined and include details such as personnel costs, materials, contracts, energy savings, etc:

Cost/year based on repair costs from 2012 - 2015: $143,900

If new infrastructure, discuss how the department/agency will pay for the increased annual operating costs:

Not Applicable

For new infrastructure, describe the estimated timing and dollar amount of future capital investment required to realize the full expected useful life of the project:

Not Applicable

Project Coordination

Describe completion status for ongoing projects and how and when the department/agency plans to use the prior year remaining bond authorizations:

Not Applicable

If this is a new project, describe the major project phases and timing anticipated for completing the project:

This project started in 2018. Phase 1 of this project is completed and Phase 2 will be completed by June 2021.

Phase 3

Design Development and Construction Documents: Completed by May 2021

Bidding and Contracting: January - March 2024

Construction: April - November 2024

Minneapolis Goals and Strategic Direction

Public Safety

Collaborative and community-inclusive strategies to ensure safety for all members of our community: N/A


The City prioritizes equitable access to safe, stable, accessible, and affordable housing to eliminate racial disparities in housing: N/A

Economic Development

The City prioritizes economic inclusion so that all workers and families are supported and People of Color, Indigenous and Immigrant (POCII)-owned businesses in all sectors can thrive. N/A

Public Services

The City prioritizes reliable and equitable access to high-quality public services.

This project helps to ensure the safety, security, reliability, and preservation of a key government and local historical asset.

Environmental Justice:

The City prioritizes sustainable practices and renewable resources to equitably address climate change while restoring and protecting our soil, water and air.

By mitigating water intrusion and air infiltration/exfiltration, this project preserves and improves the sustainability of the City Hall/Courthouse building, contributing to a more cost-effective municipal government.

Built Environment & Transportation:

The City prioritizes high quality neighborhoods, streets, infrastructure and equitable access to multimodal transportation in all parts of the City through thoughtful planning and design. N/A

Public Health:

The City Prioritizes positive youth development so that all children can grow healthy and safe: N/A

Arts and Culture:

The City prioritizes arts and culture as important part of inclusive economic development and placemaking in our communities:

This project helps preserve and maintain a key cultural and historical City/County asset which is on the National Register of Historic Places.

Additional Information

Add any additional information you feel is important for the CLIC committee, Mayor, City Council members or the general public to know about this potential project and why it should be approved: