Building Info

Northwestern Mutual Tower (left) and North Building (right). Photo by Jeramey Jannene.
  • Address:
    818 E. Mason St.
  • Taxkey:
    3921636110
  • Architect:
    Flad & Associates
  • Architectural Style:
    Postmodern
  • Status:
  • Assessed Value (Land):
    $8,624,900
  • Assessed Value (Improvements):
    $54,265,500
  • Assessed Value (Total):
    $62,890,400
  • Assesment Year:
    2023
  • Year Built:
  • Size:
    542,005 sq-ft

The Northwestern Mutual North Building is the 18-story office building on the northeastern corner of the company’s downtown campus.

A complete overhaul was proposed in 2023, with construction starting later that year.

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Content referencing Northwestern Mutual North Building

See Inside Downtown’s Biggest Construction Project

See Inside Downtown’s Biggest Construction Project

Northwestern Mutual reaches one-year mark in tower overhaul.

Friday Photos: Northwestern Mutual’s Unbuilding Changes Skyline
Friday Photos

Northwestern Mutual’s Unbuilding Changes Skyline

North Building being stripped to its core to create a second glassy skyscraper.

Eyes on Milwaukee: Northwestern Mutual Makes ‘Skyline-Defining’ Bet On Downtown
Eyes on Milwaukee

Northwestern Mutual Makes ‘Skyline-Defining’ Bet On Downtown

Insurance company celebrates construction start on $500 million tower overhaul.

Eyes on Milwaukee: Northwestern Mutual Names Tower Team
Eyes on Milwaukee

Northwestern Mutual Names Tower Team

And wins approval for street closure. Second glassy tower to be built by team that helped create signature 2017 tower.

Eyes on Milwaukee: Northwestern Mutual Wins Key Vote To Close Cass Street
Eyes on Milwaukee

Northwestern Mutual Wins Key Vote To Close Cass Street

But not without derision, and the suggestion to create an open-air passageway for the public.

Eyes on Milwaukee: Northwestern Mutual’s Glassy Second Tower Is A Go
Eyes on Milwaukee

Northwestern Mutual’s Glassy Second Tower Is A Go

Council unanimously approves $30 million commitment to $500 million project.

Eyes on Milwaukee: Council Strongly Supports Northwestern Mutual Deal
Eyes on Milwaukee

Council Strongly Supports Northwestern Mutual Deal

City would provide $30 million subsidy for $500 million tower redevelopment.

Eyes on Milwaukee: City Board Endorses $30 Million For NM’s $500 Million Tower Project
Eyes on Milwaukee

City Board Endorses $30 Million For NM’s $500 Million Tower Project

Subsidy also includes $10 million for bike, park and street improvements.

Eyes on Milwaukee: Northwestern Mutual To Create Second Glassy Tower With $500 Million Investment
Eyes on Milwaukee

Northwestern Mutual To Create Second Glassy Tower With $500 Million Investment

Company will completely overhaul existing building, create pedestrian street and relocate Franklin employees to Downtown.

Where Will NM Build New Parking Structure?

Where Will NM Build New Parking Structure?

Decision could have big impact -- either good or bad -- on Downtown.

Friday Photos: NM’s 27-Hour Concrete Pour
Friday Photos

NM’s 27-Hour Concrete Pour

Photos and a time-lapse video of the project that poured 10,000 cubic yards of concrete for what will become the state's biggest building.

Northwestern Mutual Tower and Commons Preparing for 27-Hour Concrete Foundation Pour
Press Release

Northwestern Mutual Tower and Commons Preparing for 27-Hour Concrete Foundation Pour

Mar. 27 and 28 around-the-clock pour features 10,000 cubic yards of concrete, 250 construction workers, 50 cement trucks, 1,000 trips

Northwestern Mutual Tower and Commons creates more jobs for city residents
Press Release

Northwestern Mutual Tower and Commons creates more jobs for city residents

We’re proud to partner with Benson Industries on this important phase of our project.

Mayor Barrett’s 2015 State of the City Address
Press Release

Mayor Barrett’s 2015 State of the City Address

Monday, March 9th, 2015 - Alverno College

Plats and Parcels: Northwestern Mutual Could Demolish a City Block
Plats and Parcels

Northwestern Mutual Could Demolish a City Block

Will entire city block be used to build 1,000 car parking garage? And will The Couture dispute ever get settled?

Friday Photos: Destroy This Building, NML Declares
Friday Photos

Destroy This Building, NML Declares

A second NM building, at Wells and Van Buren, is also being torn down.

Building data on this page, including assessment information, was last updated on April 5, 2024

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