Historic Two-Story Office
For Sale
$699,000
728 6th St, Rapid City, SD 57701
Two-story office building with original wood finishes, leaded-glass transom windows, and an unfinished basement for storage.
Property Size5,896 SF
Price / SF$118.55
Days on Market231
Property Features for 728 6th St
General Information
Standard status
Active
Size
5,896 SF
Amenities
conference room
kitchenette
wrap-around porch
on-site parking
Building Details
Year Built
1914
Stories
2
Construction
Prairie-style
Listing Agency:
SUN REAL ESTATE
Listed By:
ELLI THURSTON
(605) 484-5226
Source:
Exprealty
Added: Mar 3
Changed: Oct 14
Last Checked: Oct 19 at 1:24PM
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 SUN REAL ESTATE
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Investment Insights
Based on property information with market context.
The Michael Quinn House is a preserved historic office building constructed in 1914. The property features concrete brick construction, original wood floors and doors, and leaded-glass transom windows along with seeded (historic) glass windows that reflect its early 20th-century character. The interior includes a main level with three separate entrances (front, west side, and rear), a reception/secretarial area, a large front office suite, additional private offices, a spacious conference room, a kitchenette area, and a half bathroom. The second level offers an expansive open layout suitable for flexible office or equipment use. An additional full unfinished basement provides storage, archives, or future expansion opportunities, including a cellar.
The building is located on the corner of Quincy and 6th Street in Downtown Rapid City within the Central Business District. The property also includes a wrap-around porch for sheltered outdoor space and on-site downtown parking for convenient daily access.
This offering is listed on the Historic Register. The wood shingle roof was replaced approximately 10 years ago, supporting long-term building maintenance while retaining the property’s original architectural integrity and period details.
The building is located on the corner of Quincy and 6th Street in Downtown Rapid City within the Central Business District. The property also includes a wrap-around porch for sheltered outdoor space and on-site downtown parking for convenient daily access.
This offering is listed on the Historic Register. The wood shingle roof was replaced approximately 10 years ago, supporting long-term building maintenance while retaining the property’s original architectural integrity and period details.
Key Highlights
- Historic two‑story commercial office building constructed in 1914, on 6th Street in Rapid City’s Central Business District
- Approximately 3,864 SF premium office space plus 1,932 SF unfinished basement for storage, archives, or future expansion
- Prairie‑style concrete brick construction with original wood floors and doors, plus leaded‑glass transom windows and historic seeded glass windows
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$56,381
Cap Rate
8.07%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,127,620
$1.1M
Cap Rate 7%
$805,443
$805.4K
Cap Rate 9%
$626,456
$626.5K
Market Conditions
NOI Build-Up for 5,896 SF
Gross rent
$88.4K $15.00/SF
− Vacancy
−$13.3K −$2.25/SF
EGI
$75.2K $12.75/SF
− OpEx
−$18.8K −$3.19/SF
NOI
$56.4K $9.56/SF
Area
Pennington County, SD
Vacancy
15.00%
Lease Rate
$15.00 /SF/Yr
Expense Ratio
25.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,127,620
Cap Rate 7%
$805,443
Cap Rate 9%
$626,456
Alternative Uses
Best Use
Office B
$805.4K
$704.8K – $939.7K
NOI $56,381 @ 7.0% cap · market cap 8.07%
Second Best
—
—
no second resolved use
Theoretical Best
Specialty Retail
$1.07M
$935.3K – $1.25M
NOI $74,820 @ 7.0% cap · market cap 10.70%
Zoning and permitted uses should be independently verified with authorities.
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Current Use
Location Intelligence
Trade Area within ½ mile
2,188
Businesses Nearby
Explore this area
Business Placement
Demographics for 57701, SD
46,258
Population
20,526
Households
2.3
Avg Household Size
36
Median Age
28%
College-Educated
93%
High-School Grad
52.2 sq mi
ZIP Area
886
Density / Sq Mi
$52,733
Median Household Income
$34,971
Median Earnings
$892
Median Rent
$229,900
Median Home Value
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Market
Vacancy Rate% for Office in Midwest region
Frequently Asked Questions
What type of property is this?
Office building - Two-story office building with original wood finishes, leaded-glass transom windows, and an unfinished basement for storage.
Where is this office building located?
The property is located at 728 6th St Rapid City, SD.
What is the asking price?
The asking price for this property is $699,000.
What are key features of this property?
This property features: Historic two‑story commercial office building constructed in 1914, on 6th Street in Rapid City’s Central Business District; Approximately 3,864 SF premium office space plus 1,932 SF unfinished basement for storage, archives, or future expansion; Prairie‑style concrete brick construction with original wood floors and doors, plus leaded‑glass transom windows and historic seeded glass windows
