225 E Mason St
Milwaukee, WI 53202
Sentinel Building · Property For Lease

The Sentinel Building offers a unique leasing opportunity in the heart of downtown Milwaukee. This historic multi-story property features a variety of office and retail spaces ranging from approximately 733 SF to 3,231 SF, providing flexible options for businesses of all sizes. Tenants can take advantage of a highly visible ground-floor retail presence, expansive upper-floor office layouts, and the character of a classic downtown building. Ownership is willing to collaborate on tenant improvements and build-outs, allowing occupants to tailor their space to their operational needs. The property includes a mix of private office and open-concept opportunities, highlighted by a spacious second floor with exposed ceilings and abundant character. Its central business district location places tenants within walking distance of downtown amenities, restaurants, hotels, entertainment venues, and major employment centers. With negotiable lease terms, modified gross lease structures, and a premier downtown address, The Sentinel Building presents an excellent opportunity for office, retail, creative, professional service, or adaptive reuse users seeking a distinctive space in Milwaukee's urban core.