The Sentinel Building

Building Info

• Address:
  225 E. Mason St.
• Taxkey:
  3920683000
• Architect:
  Walter A. Holbrook
• Status:
  Completed
• Assessed Value (Land):
  $273,000
• Assessed Value (Improvements):
  $1,793,800
• Assessed Value (Total):
  $2,066,800
• Assesment Year:
  2023
• Year Built:
  1892
• Size:
  30,848 sq-ft

Built as a home for the Milwaukee Sentinel in 1892. Proposed for conversion into 33 apartments as of 2021, but that plan was effectively canceled in early 2023.

Designed by Walter A. Holbrook.

Photos

Content referencing The Sentinel Building

New Developer Attempting Sentinel Building Redevelopment

A conversion to apartments? Office building is effectively empty.

Jun 19th, 2025 by Jeramey Jannene

Mostly Vacant Downtown Office Building Sold

But it's unclear what happens next for building once slated for conversion to housing.

Nov 1st, 2023 by Jeramey Jannene

Four Milwaukee Buildings Headed To Auction Block

Iron Horse Hotel, downtown office building, 30th Street Corridor redevelopment candidate and Park Place office building on the market.

Aug 10th, 2023 by Jeramey Jannene

Plats and Parcels

Downtown Apartments Plan Goes Kaput

Plan to convert old Sentinel Building in limbo. Plus: recap of the week's real estate news.

Jan 29th, 2023 by Jeramey Jannene

Eyes on Milwaukee

Historic Commission Will Review New Downtown Hotel

Plans proceeding for eight-story Tempo by Hilton across from Pere Marquette Park.

Dec 20th, 2022 by Jeramey Jannene

Eyes on Milwaukee

20-Story AT&T Building Sold for $30 Million

Will downtown building be redeveloped for some residential use, like other nearby towers?

Jun 14th, 2021 by Jeramey Jannene

Eyes on Milwaukee

RiverWalk Lofts Planned For 110-Year-Old Office Building

River Bank Plaza will get redeveloped.

May 12th, 2021 by Jeramey Jannene

Eyes on Milwaukee

Sentinel Building To Become 33 Apartments

Mostly-vacant office building would see new life as housing.

May 6th, 2021 by Jeramey Jannene

Plats and Parcels

Sentinel Building May Become Apartments

Plus: A rundown of the week's real estate news.

Feb 21st, 2021 by Jeramey Jannene

Eyes on Milwaukee

The Revival of Newspaper Row

Old Journal and Sentinel buildings on E. Mason St. see new life.

Oct 9th, 2018 by Jeramey Jannene

Plats and Parcels

More Downtown Projects Moving Forward

Progress happening on activation of Sentinel Building, redevelopment of Bradley Center and creation of S Block.

Sep 9th, 2018 by Graham Kilmer

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

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