Building Details

Building Size 5,714 SF

Year Built 1970

Spaces For Lease

at 100 S Spring Avenue Contact us

Suite 205 $500/Mo

Size

294 SF

Term

Negotiable

Contact us

Suite 260 $1,817/Mo

Size

1,453 SF

Term

Negotiable

Contact us

Suite 270 $729/Mo

Size

583 SF

Term

Negotiable

Contact us

Listing Agency: NAI | Sioux Falls m***@naisiouxfalls.com Show Phone

Listed By: Michael Martin, CCIM · License #16008 Show Phone

Source: Naiglobal

Added: Nov 22, 2025 Changed: Aug 8 Last Checked: Aug 8 at 12:02PM

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Investment Insights

Based on property information with market context.

This office space, available starting February 1st, 2026, is located close to downtown. The property features on-site parking and includes a first-floor ADA-compliant conference room. The building does not have an elevator. The property offers 5714 square feet of space.

Key Highlights

• Close to downtown location
• Benefit from on‑site parking
• Available February 1st, 2026

Property Analytics

Property Profile

Current Use

EGE Group LLC Accounting Firm Even Law Firm: ... Law Firm Butler Michael J Law Firm Watertown, SD Real ... Real Estate Agency First Choice of the Midwest Insurance Agency

Suggested Use

Top Pick Dental Office Carpet & Flooring Store Locksmith Acupuncture Pet Grooming Service (Bike/Boat/Book/etc) Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

NNN (Triple Net)

Lease Type

Location Intelligence

Trade Area within ½ mile

2,545

Businesses Nearby

Explore this area Business Placement

Demographics for 57104, SD

26,998

Population

13,952

Households

1.9

Avg Household Size

37

Median Age

25%

College-Educated

90%

High-School Grad

30.4 sq mi

ZIP Area

888

Density / Sq Mi

$59,161

Median Household Income

$39,101

Median Earnings

$849

Median Rent

$183,700

Median Home Value

Market

Lease Benchmarks for Sioux Falls, SD

$14.81 /SF/Yr

Avg Asking Price

$7–$27 /SF/Yr

Price Range

4,828 SF

Avg Space Size

Vacancy Rate% for Office in Midwest region

13.7% 2019

15.6% 2020

17.1% 2021

18.9% 2022

21% 2023

22% 2024

21.3% 2025

Questions? Ask Rey

Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

What type of property is this? Where is this office units located? What is the lease rate? Find similar properties ... What are key features of this property?

Ask Rey about this property ...

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Frequently Asked Questions

What type of property is this?

Office units - Office space available February 1st, 2026, close to downtown.

Where is this office units located?

The property is located at 100 S Spring Avenue Sioux Falls, SD.

What is the lease rate?

The lease rate is $500/Mo.

What are key features of this property?

This property features: Close to downtown location; Benefit from on‑site parking; Available February 1st, 2026