For Sale
  • For Sale
  • For Lease
  • Recently Sold
  • Property Lookup
  • Brokers
Office
1
  • Retail
  • Office
  • Residential Income
  • Restaurants
  • Industrial
  • Mixed-Use
  • Hospitality
  • Health Care
  • Sports & Entertainment
  • Land
  • Agricultural
  • Specialty
Price
Price range
$
$
Size
Property size / sq.ft.

Union County, SD Office Space for Sale

9 results
List
Map
Spacious Second-Floor Office Suite
Contact for pricing
2,890 SF

Spacious Second-Floor Office Suite

600 N Derby Ln, North Sioux City, SD 57049

2,890 SF office suite with reception, offices, conference room.

  • 2,890 sq ft of professional office space for a growing business.
  • Welcoming reception area and large open work area.
  • Features four private offices and a generously sized conference room.
  • Equipped with a convenient kitchenette.
  • Three restrooms provide comfort and accessibility.
Updated: Jan 19
View details
Prime Commercial Space in Dakota Dunes
Contact for pricing
3.80 Acres

Prime Commercial Space in Dakota Dunes

895 Cottonwood Ln, Dakota Dunes, SD 57049

Unbeatable visibility and traffic flow in a powerful business corridor.

  • Unbeatable visibility and high traffic flow off the only northbound I‑29 exit into Dakota Dunes.
  • Prime location across from the Holiday Inn & Suites Convention Center.
  • Located next to a thriving corporate park and surrounded by a rapidly expanding medical community.
  • Versatile suite suitable for retail, restaurant, office, or service‑based businesses.
  • Option to combine Suite C with Suites D and E for a larger footprint.
Updated: Dec 12, 2025
View details
Modern Flex Space with Garage
Contact for pricing
3,000 SF

Modern Flex Space with Garage

Modern flex space featuring offices, conference room, and heated garage.

1400 River Dr, North Sioux City, SD 57049
View details
North Sioux City Office Space
Contact for pricing
1,215 SF

North Sioux City Office Space

Well-maintained 1,215 SF office space available April 1, 2025.

600 N Derby Ln, North Sioux City, SD 57049
View details
High-End Dakota Dunes Office Space
Contact for pricing
1.73 Acres

High-End Dakota Dunes Office Space

Professionally managed office space in a prime Dakota Dunes location.

211 Sioux Point Rd, Dakota Dunes, SD 57049
View details
Move-In Ready North Sioux City Office
Contact for pricing
2,748 SF

Move-In Ready North Sioux City Office

Well-maintained 2,748 SF office space with flexible floor plan.

600 N Derby Ln, North Sioux City, SD 57049
View details
Move-in Ready Industrial Building
$625,000
6,240 SF

Move-in Ready Industrial Building

Functional industrial building with professional office space in Flynn Business Park.

501 Prosperity Way, North Sioux City, SD 57049
View details
Prime Commercial Space Dakota Dunes
Contact for pricing
3.80 Acres

Prime Commercial Space Dakota Dunes

Unbeatable visibility and traffic flow in a powerful business corridor.

895 Cottonwood Ln, Dakota Dunes, SD 57049
View details
Modern Industrial Building with Office
$1,080,000
7,200 SF

Modern Industrial Building with Office

7,200 SF building with flexible space and office.

503 Prosperity Way, North Sioux City, SD 57049
View details
Based on your search, we've compiled 10 Potential Opportunities for your consideration. Besides 9 Active listings in Union County, SD, we suggest exploring several alternatives: similar 1 Off-Market properties to explore as potential leads

Explore Off-Market Properties in Union County, SD

Consider similar Off-Market properties in Union County, SD. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

1244-1248 River Dr

1244-1248 River Dr

Office space • 9,160 SF
Value Estimation by Request
1244-1248 River Dr, North Sioux City, SD 57049
View details

Union County, SD Office Space Investment Opportunities Market Analysis

Explore 10 office space for sale in Union County, SD, showcased through 9 active listings on our real estate platform. These investment opportunities span a total of 43,560 square feet of properties for sale, with an estimated market value of $625,000.

Prices for office space in Union County, SD start at $625,000, averaging $625,000, and reaching up to $625,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you have the most current data.

List
Map