323 Riviera Dr, Union City, CA 94587, USA

Property CA
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1

Property Overview:

323 Riviera Dr is a single-family home in Union City, CA, built in 1965. It features 4 bedrooms, 2 bathrooms, and 2,280 sq. ft. of living space. The home includes a detached 2-car garage, multiple driveways for up to 4 extra off-street parking spaces, and a paid-off solar panel system with Tesla battery. The estimated home value is $958,600.

Neighborhood Highlights:

  • Crime Rate:

    • Personal crime risk: 6.6% (lower than state average of 11.8%).
    • Property crime risk: 8.9% (lower than state average of 10.8%).

  • Schools:
    Nearby schools include Guy Junior Emanuele Elementary, James Logan High, Connecting Waters Charter - East Bay, and Centerville Junior High.

    • Average SAT score: 969 (below state average of 975).

  • Job Market:

    • 58.2% white-collar jobs, 41.8% blue-collar jobs.
    • Unemployment rate: 3.3% (lower than state average of 4.7%).

  • Demographics:

    • Community population: 65,158 (9.8% growth since 2000).
    • 81% families with children.
    • Largest age group: 35-44 years (14.66%), followed by 25-34 years (14.63%).

  • Natural Disaster Risk:

    • Low flood risk, low tornado risk, high earthquake risk.

  • Weather:

    • Average temperature: 47.0°F (January), 79.3°F (July).
    • Average rainfall: 19.2 inches/year.
    • Average snowfall: 0.1 inches/year.

  • Cost of Living:

    • Median household income: $74,926.
    • Average annual spending: $56,698.

Property Features:

  • Located in the desirable Seven Hills neighborhood at the end of a cul-de-sac for privacy and tranquility.
  • Expansive, grassy backyard with wrap-around balcony and panoramic views—no rear neighbors.
  • Possible in-law unit: Lower level with exterior access, modern kitchenette, full bathroom, large bedroom with bonus area, and office/den.
  • Spacious open kitchen with island, granite countertops, recessed lighting, and ample cabinet space.
  • Living room with vaulted ceilings and access to the wrap-around deck.
  • Main level: 3 bedrooms and a newly remodeled bathroom.
  • Upgrades:
    • Paid-off solar panel system with Tesla battery
    • Newer roof and HVAC system
    • Just replaced sewer lateral pipes
    • Water pipes & tankless water heater replaced 10 years ago
    • LVP flooring and fresh interior paint
  • Backyard amenities:
    • 2 tool sheds
    • Dog run/kennel space
    • Many fruit trees
  • Parking: Detached 2-car garage and driveways for up to 4 extra off-street parking spaces.

Location Benefits:

  • Conveniently located on the Union City/Fremont border near Mission Blvd.
  • Easy access to I-880, I-580, and I-680, as well as public transportation.
  • Close to shopping, business centers, and recreational areas like Dry Creek Pioneer Park and Quarry Lake Regional Recreation Area.
  • Family-friendly community with room to grow and entertain, ideal for multi-generational living or hosting guests.
2

Price and Status History

date type price
1997-12-04 Sold 210000
2004-06-01 Sold 445000
2007-02-23 Delisted NaN
2008-12-14 For Sale NaN
2008-12-15 For Sale 400000
2009-06-12 Off Market NaN
2009-09-04 Sold 385000
2009-09-11 Sold 385000
2013-09-26 Sold 385000
2022-05-01 For Sale NaN
2022-05-14 Off Market NaN
2022-07-22 Pending NaN
2024-01-07 Sold 1360000
2024-11-14 For Sale 1328000
2024-12-03 Pending NaN
2025-01-07 Sold 1360000
3

Superfund Enterprise Management System

SITE NAME ADDRESS FEDERAL FACILITY NPL STATUS NON-NPL STATUS CONTAMINANTS SEMS EPA ID DISTANCE (MILES)
GENERAL ELECTRIC CO 34863 Mission Boulevard, Union City, CA 94587, USA N N NF 0 CAT080012628 0.21
PACIFIC STATES STEEL 35124 Alvarado-Niles Road, Union City, CA 94587, USA N N OS 0 CAD980363030 0.78
FOREMOST MCKESSON CO 33950 7th Street, Union City, CA 94587, USA N N NF 0 CAD073934903 0.85

Toxic Release Inventory

FACILITY NAME ADDRESS TOTAL FORMS LAST FORM YEAR RISK SCREENING FACILITY ID DISTANCE (MILES)
PHIBRO-TECH INC 34400 Zwissig Way, Union City, CA 94587-3638, USA 48 2001 N/A 94587CPNRG34400 0.6

Integrated Compliance Information System - Air

No data found within 1.0 miles for this property.

4

Flood Risk Info

fld_zone very high impact: up to 0.0001 miles high impact: up to 0.2 miles moderate impact: up to 0.5 miles low-moderate impact: up to 1.5 miles
A 0 0 0 0
AE 0 0 0 4
AH 0 0 4 1
AO 0 0 0 0
VE 0 0 0 0

Flood Zone Type

code meaning
A 1% annual chance flood zone determined using approximate methods. No BFEs shown. Flood insurance and management standards apply.
AE 1% annual chance flood zone determined by detailed methods. BFEs shown. Insurance and floodplain management required.
AH Shallow flooding (ponding) zones with depths between 1-3 feet. BFEs shown. Insurance and management required.
AO Shallow flooding (sheet flow) zones with depths 1-3 feet. BFEs or average depths shown. High-velocity areas may exist.
VE Coastal 1% annual chance flood zone with wave action. BFEs shown. Insurance and management required.

Earthquake Risk Info

zone_name quad_name very high impact: up to 0.0001 miles high impact: up to 2.0 miles moderate impact: up to 10.0 miles
Northern Calaveras Dublin 0 0 1
Northern Calaveras Hayward 0 0 0
Northern Calaveras La Costa Valley 0 0 1
Northern Calaveras Livermore 0 0 1
Northern Calaveras Milpitas 0 0 0
Northern Calaveras Newark 0 0 0
Northern Calaveras Niles 0 0 1
South Hayward Dublin 0 0 0
South Hayward Hayward 0 0 1
South Hayward La Costa Valley 0 0 0
South Hayward Livermore 0 0 0
South Hayward Milpitas 0 0 1
South Hayward Newark 0 1 0
South Hayward Niles 1 0 0

Landslide Risk Info

lscat very high impact: up to 0.0001 miles high impact: up to 0.04 miles moderate impact: up to 0.1 miles low-moderate impact: up to 0.2 miles
8 0 0 0 0

Liquefaction Risk Info

Suscept very high impact: up to 0.0001 miles high impact: up to 0.05 miles moderate impact: up to 0.5 miles low-moderate impact: up to 1.0 miles
High 0 0 0 0
Very high 0 0 0 0

Wild fire Risk Info

haz_class very high impact: up to 0.0001 miles high impact: up to 0.5 miles moderate impact: up to 1.5 miles low-moderate impact: up to 3.0 miles
High 0 0 0 1
Very High 0 0 0 0
5

Traffic Noise by Hour x Weekday

Not enough data points

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Airplane Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 1 1 1 1 1 1 1
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2 1 2 1 2 2 2 0
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5 1 1 1 2 1 1 1
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19 2 3 3 2 3 1 2
20 2 1 2 1 1 2 2
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23 1 2 1 1 1 1 1