309 W Main St 6,971 SF 50% Leased Office Building Round Rock, TX 78664 $3,500,000 ($502.08/SF)

Rarely does an opportunity like this surface in downtown Round Rock. The Harrell-Henna House is a 6,971 SF two-story Class B office building in the heart of Round Rock's historic commercial district — one block from City Hall, steps from the courthouse, and walkable to the full complement of downtown shops, restaurants, and municipal offices. Direct IH-35 access puts the property at the center of everything Williamson County has to offer.
Originally constructed in the early 1900s and fully renovated in 2001, the building carries genuine character that modern Class A product simply can't replicate. The layout is purpose-built for professional services: a well-conceived mix of hard-walled private offices and open bullpen areas across two floors, shared common areas, and a kitchenette. It functions as a single-tenant headquarters or a multi-tenant income property — and right now, it's doing both.
The building is approximately 50% leased to established tenants, providing an owner-user with immediate income to offset carrying costs from day one. The balance — up to 3,494 SF across three available suites ranging from 696 to 1,791 SF — is ready for occupancy. That's the kind of deal structure that makes sense on a balance sheet.
The ideal buyer is an attorney, CPA, title company, financial advisory firm, or professional services practice that wants a permanent address in the most recognized commercial corridor in Williamson County — with built-in income to help carry the asset.
Downtown Round Rock on corner of Harris and West Main street near city offices, free public parking, restaurants.