621 W 21st StSioux FallsSD57105








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Ziffy AI Summary
A quick, investor-focused snapshot highlighting income strength, yield potential.
| Key metrics | Value |
|---|---|
| Price | $399,900 |
| Est. Rent | $3,200/mo |
| ROI | 18% |
- Attractive rent-to-price ratio for income stability
- Good fit for DSCR financing with healthy coverage


Investment Highlights
Investment property for sale in Sioux Falls at 621 W 21st St, Sioux Falls, SD, 57105 uses $39,780 cash to close to unlock $1,848/yr annual cash flow and $154/mo monthly cash flow. Total monthly income runs $912/mo, and a $587/mo payment keeps the spread at $154/mo. Purchase price stands at $120,000, and rental yield measures 9.12% with $912/mo rent. Return on cash invested shows 24.55% in year one, and 5% annual appreciation builds toward $33,154 over five years. Five-year ROI reaches 127.92% and total cumulative return in cash records $50,887. Financing may use Ziffy Mortgage’s DSCR loan, which bases approval on $912/mo property income covering a $587/mo payment rather than investor’s personal income.
Single Family
Built in 1900
5,320 sqft lot
$N/A/sqft
No HOA
Neighborhood Data
Neighborhood data shown for ZIP Code: 57105, Sioux Falls, SD area.
Housing Distribution
Housing Statistics
| Category | Value |
|---|---|
| Total HU (Housing Units) | 10,634 (100%) |
| Owner Occupied HU | 6,499 (61.1%) |
| Renter Occupied HU | 3,466 (32.6%) |
| Vacant Housing Units | 669 ( 6.3%) |
| Median Home Value | $287,839 |
| Average Home Value | $346,547 |
Housing Distribution
Address Breakdown
Residential
9,840
Single Family
8,112
Multi-Family
1,728
Businesses
1,020
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Listed by: David Shelton • CENTURY 21 Advantage
Mls Name: Realtor Association of the Sioux Empire
Mls Provider:
Mls ID: #22503868
Disclaimer: The data relating to real estate for sale on this web site comes in part from the Internet Data Exchange Program of the REALTOR Association of the Sioux Empire, Inc., Multiple Listing Service. Real estate listings held by brokerage firms other than Zillow, Inc. are marked with the Internet Data Exchange logo or the Internet Data Exchange thumbnail logo (a little black house) and detailed information about them includes the name of the listing brokers. Information is deemed reliable but not guaranteed. Copyright 2025 REALTOR Association of the Sioux Empire, Inc., Inc. Multiple Listing Service. All rights reserved.







