374 S 21st Street, San Jose, California 95116, San Jose, 95116 - 0 bed, 0 bath
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374 S 21st Street
San Jose, California 95116
ACTIVE
CONDITION: EXCELLENT
0Beds
0Baths
1,493Sq Ft
7,800Lot Size
Property Price
LIST PRICE$1,188,000
EST. MARKET VALUE
$1,083,104
9% AboveMARKET VALUE
SUMMARY
This Residential Income Property is a Strong Value Opportunity, listed at $1,188,000—positioned well above the $1,083,104 Fair Market Value. While priced at a premium, the property features a brand-new 2BD/2BA ADU and a renovated 1BD/1BA main house, maintaining an Excellent Condition Rating. With pre-approved plans for a two-story duplex already in permit review, this asset offers significant development upside for those looking to scale to four units. It is an ideal acquisition for Buy-and-Hold Investors or Owner-Occupants seeking a turnkey house-hack in a prime San Jose location.
Estimated Market Value
$1,083,104
Based on Realkey algorithm analyzing recent comparable sales in San Jose.
Comparable Sales Map
Comparables within 1 miles sold in recently
Map unavailable.
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 374 S 21st Street Subject 0 bd · 0 ba · 1,493 sqft · $725 | $1,188,000* List Price | 0 | 0 | 1,493 | $725 | - |
A 139 S 19th Street Active 0 bd · 0 ba · 1,484 sqft · $1,028 · 0.3 mi | $1,525,000 List Price | 0 | 0 | 1,484 | $1,028 | 0.3 mi |
* Subject property listed price vs sold prices of comps.
Condition Analysis
See Full ReportOVERALL CONDITION SCORE
Excellent
TeardownExcellent
Property is new construction or fully renovated.
The property features a brand-new, detached ADU with modern finishes, recessed lighting, and new appliances. The main house has been recently renovated, and the overall site is positioned for immediate occupancy or further development with no maintenance required.
PROSSTRENGTHS & OPPORTUNITIES
- Immediate Income & House Hacking
The property features a brand-new, vacant 2BD/2BA ADU and a renovated 1BD/1BA main house currently generating $3,000/month, providing immediate cash flow or a turnkey house-hack opportunity.
- Significant Development Upside
With plans for a two-story duplex already in permit review, the property offers a streamlined path to expand to four units on a generous 7,800 sq ft lot, saving the buyer months of design and planning time.
- Prime Silicon Valley Location
Ideally situated near Downtown San Jose, San Jose State University, and major tech hubs, the property ensures high rental demand and strong long-term appreciation potential.
CONSRISKS & DEFICIENCIES
- MLS Listing Discrepancy
Living area discrepancy between mls listing and other public or private record. mls listing living area = 1493, other record living area = 744.
- Development Execution Risk
While plans are in review, the buyer must assume the costs and complexities of construction and final city approvals to realize the property's full four-unit potential.
- Compact Living Spaces
Both existing units are under 750 sq ft, which may limit appeal for larger families or tenants seeking more spacious accommodations until the additional duplex is completed.
About 374 S 21st Street
Two homes being sold together make this an excellent house hack + future development opportunity! Live in the brand-new ADU and let the main house help pay your mortgage. On roughly 7,800 sq ft in San Jose, this property has a newly built, detached 2BD/2BA ADU (749 sq ft), vacant and ready for you to move in. The renovated 1BD/1BA main house (744 sq ft, built in 1930) rents at $3,000/mo. Prefer to hold both as rentals? The ADU projects at around $3,500/mo, for about $6,500/mo combined. BONUS 2 additional homes in the pipeline: Plans for a two-story duplex, with two 3BD/3BA units of 1,188 sq ft each, are already in permit review with the city. The design work is done, so you pick up where it leaves off instead of starting from scratch. Live on-site while you build out to four units. Close to Downtown, major tech employers, San Jose State University and freeway access. Excellent opportunity for investors, developers, builders looking for the next project.
Property Details
Public Facts
- Property Type
- Duplex
- Year Built
- 2026
- Lot Size
- 7,800 Sq. Ft.
Interior
- Total Bedrooms
- 0
- Total Bathrooms
- -
Exterior & Parking
No exterior & parking available.
Utilities & Misc
- HOA Fee
- $0 / Month
Neighborhood Insights
Sensitive Facilities
No sensitive facilities data found.
Neighborhood Comparison
| Feature | Subject | Average Home |
|---|---|---|
| Beds | 0.0 | 0.0 |
| Baths | 0.0 | 0.0 |
| Square foot | 1,493 | 2,404.563 |
| Lot Size | 7,800 | 6,807.656 |
| Price | $1.19M | $1.42M |
| Price per sq ft | $796 | $613 |
| Built year | 2026 | 1962 |
| HOA | $0 | $0 |
| Days on market | 15 | 72 |
Pricing History
Listed for Sale
Oct 9, 2026
$1,188,000
Initial Listing
Sold
Apr 9, 2025
$1,050,000
Public Record
Sold
Dec 11, 2024
$880,000
Public Record