1339 MAIN ST Columbia SC 29201

Located at the intersection of Lady and Assembly Streets in Downtown Columbia, 1280 Assembly Street is a mixed-use building spanning approximately 16,000 square feet. This versatile space features a combination of ±8,000 SF of private offices and ±8,000 SF of large open area suitable for various flexible uses. There is a bonus back office area that can be used for storage, an ancillary office, a data room or a potential catering kitchen. The building features unique street-side windows that overlook Assembly Street, as well as skylight windows that offer impressive views. Ideal uses include retail, office or mixed-use space, including banquet, event, training or conference space.

Located in the heart of Downtown Columbia, the property is pedestrian-friendly to the Main Street District, the Vista, SC State House and the University of South Carolina campus. Nearby venues include the Koger Center, Colonial Life Arena, Columbia Metropolitan Convention Center and the Columbia Museum of Art.

• Located in the heart of Downtown Columbia - one block from the SC State House

• ±16,000 SF total | ±8,000-SF open area and ±8,000-SF office/conference room space

• Bonus back office area that can be used for storage, ancillary office, data room or potential catering kitchen

• Potential for hotel or multifamily use. Ideal retail, office or mixed-use space, including banquet, event, training or conference space

• Street parking available

• Adjoining City of Columbia six-story parking garage with access points from Assembly or Lady Streets (available for lease)

The City of Columbia and Trinity Partners are pleased to present Washington Square, a landmark development opportunity in the heart of downtown.​ Built in 1973 and encompassing 90,402 square feet, this iconic brutalist-style office building is poised for transformation as part of Project Catalyst—the City’s initiative to leverage public assets and private investment to drive growth, strengthen the local economy, and enhance quality of life.​

Strategically located within walking distance of the State House and the University of South Carolina, Washington Square offers unmatched access to Columbia’s civic, cultural, and commercial core.​ The property sits at the center of a thriving district, surrounded by retail, dining, and office activity, and adjacent to the City of Columbia’s $50 million Municipal Complex and Core Spaces’ $250 million mixed-use development.​

Ideal redevelopment scenarios include a full-service/boutique hotel, a mixed-use residential and retail project, or creative office and hospitality combinations.​ Columbia seeks a development partner who shares its vision for long-term growth and will work collaboratively to maximize the return on investment for all stakeholders.​

Washington Square represents a rare opportunity to reimagine a historic property in Columbia’s center of commerce and culture—creating a dynamic, high-impact project that both honors the city’s past and advances its future.​

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  Main Street Development Opportunity

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  90,402 SF brutalist-style office building

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  Built in 1973

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  Historic tax credits available

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  Opportunity to expand development site through a partnership with the city

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  One block from the State House and steps from USC campus

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  Ideal redevelopment scenarios include a full-service/boutique hotel, a mixed-use residential and retail project, or creative office and hospitality combinations

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  Property Website: https://growth.columbiasc.gov/portfolio/washington-square/