Building Details

Year built 2001

Roof type Composition

Listing Agency: Great Peaks Realty h***@rushmore.com Show Phone

Listed By: Heath Gran · License #1984 Show Phone

Added: Sep 30 Changed: Nov 2 Last Checked: Nov 3 at 9:06PM

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MLS# 90513

Copyright © 2026 Mt. Rushmore Area Association of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

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Investment Insights

Based on property information with market context.

This office property at 135 E Colorado Boulevard in Spearfish was built in 2001 and has a composition roof. The parcel contains 0.04 acres and is situated in the city’s downtown area.

Key Highlights

• Downtown location at 135 E Colorado Boulevard, Spearfish, SD 57783
• Built in 2001
• 0.04‑acre parcel

Property Analytics

Who owns this building? See the owner, sales and loan history

Open Analytics

Current Use

Security First Bank ... Bank

Suggested Use

Top Pick Plumbing Service (Bike/Boat/Book/etc) Store Grocery & Convenience Store Pharmacy HVAC Service Barber Shop

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

725

Businesses Nearby

Balanced

Demand for This Use

Explore this area Business Placement

Demographics for 57783, SD

16,165

Population

8,347

Households

1.9

Avg Household Size

41

Median Age

40%

College-Educated

96%

High-School Grad

213.2 sq mi

ZIP Area

76

Density / Sq Mi

$64,970

Median Household Income

$35,014

Median Earnings

$946

Median Rent

$332,300

Median Home Value

Market

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

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$1,850/Mo

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Remodeled Flex Suite with Shop Space

320 S 26th St, Spearfish, SD 57783

$2,200/Mo

2,000 sqft

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Similar Off Market Nearby

• Northern Hills Technology — 526 N Main St, Spearfish, SD 57783
• Computer Support Services — 740 N 8th St, Spearfish, SD 57783

Frequently Asked Questions

What type of property is this?

Office space - Built in 2001, the office is located in downtown Spearfish.

Where is this office space located?

The property is located at 135 E Colorado Boulevard Spearfish, SD.

What is the lease rate?

The lease rate is $3,400/Mo.

What are key features of this property?

This property features: Downtown location at 135 E Colorado Boulevard, Spearfish, SD 57783; Built in 2001; 0.04‑acre parcel