12695 W National Ave 17,000 - 52,050 SF of Office Space Available in New Berlin, WI 53151

This single-story ±52,050 SF office / flex building offers exceptional flexibility for a wide range of users, including corporate headquarters, call center, training, healthcare administration, and flex office operations. Originally designed for retail use and later converted to large-scale office occupancy, the building benefits from wide column spacing, an efficient open layout, and infrastructure that supports high-density employment. The space is divisible to approximately ±17,000 SF and can accommodate single-tenant or multi-tenant configurations. Existing improvements include extensive open office areas, private offices, conference rooms, break areas, and support spaces. Raised access flooring is present in select areas, allowing for flexible power and data distribution. Key building infrastructure includes a 500 kW diesel backup generator serving life-safety and select critical systems, high-capacity 480/277V three-phase electrical service, redundant fiber connectivity, and LED lighting throughout the interior and exterior. Ceiling heights are approximately 9’–10’ finished with 16’+ clear height potential above the drop ceiling, providing additional flexibility for future reconfiguration. The 7.31-acre site provides an exceptional parking ratio of approximately 7.5 spaces per 1,000 SF (±393 surface stalls), well-suited for high employee counts, training uses, or staggered shifts. Two (2) dock-high loading doors support light industrial or flex operations and efficient building servicing. The property is located along the National Avenue corridor in New Berlin, offering strong visibility, access, and proximity to I-41 and I-43. Zoning (B-1 / B-2) allows for a broad range of office, flex, and retail uses. Space is available on a NNN basis with immediate to near-term occupancy.