
4439 Horner St, Union City, CA
4439 Horner St, Union City, CA
Property Description
Welcome to this charming and well-kept home sitting on an impressive 7,500 sq ft lot in the highly sought-after city of Union City. The residence offers a warm and cozy interior, ideal for buyers seeking comfort and a property with long-term upside in one of the most desirable markets in the Bay Area. The expansive lot opens the door to exceptional potential — including the opportunity to build an ADU for additional living space or rental income. With a wide street that provides abundant parking and a generous backyard ready for future improvements, this property stands out as a rare find. A valuable combination of location, lot size, and investment flexibility makes this home a smart choice for both homeowners and investors looking to maximize returns in Union City.
Features & Amenities
Property Details
Mortgage Calculator
Current Rates
Comparative Market Analysis
Affordable Tier · 4 active · 5 closed
Union City · Single Family Residence
Listed 7.8% below the median closed sale of $1,030,000. Closed comps sold at 111% of list — strong seller's market.
Price Position
Priced below the market — value advantage over the field.
Active Properties (4)
Active Comparables
| Address | City | Year | BD | BTH | SqFt | LotSz | LP/SqFt | LP | DIM | Score |
|---|---|---|---|---|---|---|---|---|---|---|
| 2502 Begonia St | Union City | 1971 | 3 | 2 | 1,382 | 7,008 | $868 | $1.20M | 39 | 80 |
| 2603 Central Ave | Union City | 1974 | 3 | 2 | 1,425 | 6,930 | $877 | $1.25M | 26 | 80 |
| 32245 Chechester Dr | Union City | 1977 | 3 | 2 | 1,542 | 5,970 | $907 | $1.40M | 11 | 76 |
| 34838 Lilac St | Union City | 1971 | 3 | 2 | 1,544 | 6,100 | $899 | $1.39M | 59 | 75 |
| Total: 4 · Average | 3.0 | 2.0 | 1,473.25 | 6,502 | $887.75 | $1.31M | 33.75 | |||
| Median | 1,542 | $1.39M | ||||||||
Closed Properties (5)
Closed Comparables
| Address | City | Year | Date | BD | BTH | SqFt | LotSz | LP | SP | SP/SqFt | SP/LP | DIM | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1017 I St | Union City | 1916 | 08/12/2026 | 2 | 1 | 1,198 | 6,000 | $449,000 | $520,000 | $434 | 1.16 | 35 | 83 |
| 33741 12Th St | Union City | 1923 | 07/22/2026 | 3 | 2 | 1,366 | 5,000 | $700,000 | $780,000 | $571 | 1.11 | 40 | 81 |
| 30806 Vallejo St | Union City | 1925 | 06/25/2026 | 3 | 2 | 1,201 | 7,020 | $999,888 | $1.12M | $933 | 1.12 | 29 | 80 |
| 32526 Jacklynn Dr | Union City | 1974 | 09/28/2026 | 3 | 2 | 1,374 | 6,100 | $1.30M | $1.38M | $1,004 | 1.06 | 38 | 79 |
| 577 Jonathan Way | Union City | 1956 | 06/09/2026 | 3 | 2 | 1,380 | 7,500 | $949,950 | $1.03M | $746 | 1.08 | 29 | 79 |
| Total: 5 · Average | 2.8 | 1.8 | 1,303.8 | 6,324 | $966,000 | $966,000 | $737.6 | — | 34.2 | ||||
| Median | 1,366 | $1.03M | $1.03M | ||||||||||
Market Analysis
List vs Sale $/SqFt
Sale Price Trend
Days on Market
Sale vs List Price
This analysis was generated automatically from MLS data. For an in-depth, human-reviewed valuation, contact Joseph Sardella at josephsardella@gmail.com.