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Updated Office Building with Amenities

401 Douglas Street Sioux City, IA 51101

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High-quality office building with extensive amenities and flexible suite options.

Property size:
12,000 SF
Added:
Apr 21, 2026
Days on Market:
82
Last Refresh:
May 25 at 7:47 pm

Property Features for 401 Douglas Street

General Information

Standard status
Active
Size
12,000 SF

Listing office NAI United

Listing date Apr 21, 2026

Source Exprealty

Displayed information is deemed reliable but is not guaranteed and should be independently verified.

All listing content including descriptions, pricing, images are the copyrighted material of NAI United


Investment Insights

Based on property information with market context.

This recently updated office building offers a high-quality, full-service environment. It provides access to over 12,000 square feet of amenities. The building features views of the Missouri River and an expansive interior atrium. A redundant 1500 kW generator and uninterruptible power supply (UPS) are in place. The building includes a wellness center with showers and locker rooms, a small basketball court and fitness floor on the 6th floor, a full-service mail and document center, high-level card access security, and a Roberts Floor Cell System. Reception services and on-site property management are available. Interior access is provided to an adjacent public parking ramp and shared parking with the Hard Rock Casino. There are eight meeting rooms, including a 64-person assembly hall, a 64-person press room, three 6-person conference rooms expandable to 30, all on the main floor, a 12-person and 20-person conference rooms on the 4th floor and a 20-person executive dining room with a full kitchen and direct access to a large rooftop patio on the 5th floor. Suite 414 features 20 private offices of varying sizes and a large open cubicle space. The suite has two separate entrances with large reception/welcome areas, three conference rooms, private restrooms, and a full kitchen. Tenants also have access to two private balconies with views of downtown and the Hard Rock Casino. This suite can be demised down to 4,889 square feet or configured to 10,129 square feet. The full-service lease includes taxes, building insurance, CAM, nightly janitorial services, and utilities. Heated sidewalks are also included.

Key Highlights

  • Full‑service lease includes taxes, building insurance, CAM, nightly janitorial & utilities.
  • Enjoy free access to over 12,000 SF of amenities, including a wellness center, basketball court, fitness floor, and multiple meeting rooms.
  • Redundant 1500 kw generator and uninterruptible power supply (UPS).

Property Analytics

Property Profile Location Intelligence

Current Use by Public Records

Bankers Life Financial Advisor Horneber, Alice S Law Firm Horneber Law Firm Law Firm Iowa Poison Control ... Charitable Organization Siouxland CARES Charitable Organization

Suggested Use

(Bike/Boat/Book/etc) Store (Bike/Boat/Book/etc) Store (Bike/Boat/Book/etc) Store Locksmith Catering Service Florist Dental Office Carpet & Flooring Store (Bike/Boat/Book/etc) Store Restaurant

Zoning and permitted uses should be independently verified with local authorities.

FAQs

What type of property is this?
Office building - High-quality office building with extensive amenities and flexible suite options.
Where is this office building located?
The property is located at 401 Douglas Street Sioux City, IA.
What are key features of this property?
This property features: Full‑service lease includes taxes, building insurance, CAM, nightly janitorial & utilities.; Enjoy free access to over 12,000 SF of amenities, including a wellness center, basketball court, fitness floor, and multiple meeting rooms.; Redundant 1500 kw generator and uninterruptible power supply (UPS).
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