4252 Comet Circle, Union City, CA 94587-4026, USA

Property CA
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1

Property Overview:

4252 Comet Cir is a condominium townhouse in Union City, CA, built in 1970. It features 4 bedrooms, 1.5 bathrooms, and 1,342 sq. ft. of living space. The home includes a detached 2-car garage with extra storage, a balcony overlooking a green common area, and has been completely remodeled. The estimated home value is $635,700.

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 Itliong-Vera Cruz Middle, Alvarado Elementary, James Logan High, and Decoto School for Independent Study.

    • Average SAT score: 969 (state average: 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:

  • Completely remodeled with over $100K in updates.
  • Large living spaces and open layout.
  • Detached 2-car garage with new epoxy flooring and extra storage.
  • Balcony with pool and greenbelt views.
  • New flooring, paint, cabinets, kitchen, and bathrooms throughout.
  • Fourth bedroom, laundry room, and half bath on ground floor for convenience.
  • New furnace and newer roof/exterior paint (by HOA).
  • Low HOA fee: $358/month (includes water).
  • Quiet location near community pool, large park, and landscaped grounds.
  • Move-in ready and ideal for families.

Location Benefits:

  • Walkable to shops, groceries, bus lines, and schools.
  • Easy access to Highway 880 and Dumbarton Bridge for commuters.
  • Vibrant community with family-friendly amenities and spring festival-ready.
  • Open house and private showings available (text 510-738-6448 for info).
2

Price and Status History

date type price
1987-10-09 Rental 89000
1989-12-14 Sold 144000
1990-12-18 Rental 10000
1998-10-09 Sold 155000
1998-12-23 Sold 155000
2001-08-29 Sold 280000
2018-09-04 For Sale 648888
2018-10-15 Sold 605835
2025-04-09 For Sale 888888
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Superfund Enterprise Management System

No data found within 1.0 miles for this property.

Toxic Release Inventory

No data found within 1.0 miles for this property.

Integrated Compliance Information System - Air

No data found within 1.0 miles for this property.

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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 7
AE 0 0 0 5
AH 0 0 0 0
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
South Hayward Hayward 0 0 1
South Hayward Newark 0 0 1
South Hayward Niles 0 0 1

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 1 0
Very high 0 0 0 2

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 0
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
1 0 1 1 2 1 1 1
2 1 2 2 2 2 2 1
3 1 1 1 1 1 1 1
4 1 1 1 1 2 1 1
5 1 1 1 2 1 1 1
6 1 1 1 1 2 2 1
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8 2 2 2 3 3 4 1
9 2 4 3 5 2 3 4
10 5 5 6 6 6 5 5
11 5 6 7 8 8 6 6
12 5 3 5 4 7 5 5
13 5 5 5 5 5 4 4
14 3 5 7 7 5 4 5
15 3 5 5 6 5 3 6
16 4 5 6 4 5 3 4
17 3 4 4 5 4 3 2
18 2 3 4 3 3 2 4
19 3 2 4 2 3 3 3
20 2 2 2 2 2 2 1
21 2 2 2 1 2 1 1
22 2 2 2 2 2 1 1
23 1 1 1 1 1 1 1