4200 Comet Circle, Union City, CA 94587-4026, USA

Property CA
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1

Property Overview:

4200 Comet Cir is a condominium/townhome in Union City, CA, built in 1972. It features 3 bedrooms, 1.5–2 bathrooms, and 1,137 sq. ft. of living space. The home includes a parking garage and has an estimated value of $639,100.

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, Pioneer Elementary, James Logan High, and Decoto School for Independent Study.

    • 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:

  • Updated end-unit townhome with new interior paint, new flooring, new dishwasher, new cabinet paint, newer countertops, newer stove, newer refrigerator, and newer doors/door knobs throughout.
  • Upgraded kitchen with stainless steel appliances, granite countertops, and modern finishes.
  • Open floorplan, spacious bedrooms, in-unit laundry, and a full 2-car garage.
  • Large, maintenance-free backyard—ideal for indoor/outdoor entertaining.
  • Dual-paned windows, crown moulding, and ample storage (garage cabinets).
  • Community amenities: Multiple parks, swimming pools, clubhouse, basketball/tennis courts, and walking trails.
  • Quiet, family-oriented neighborhood with easy access to freeways 880 & Dumbarton Bridge.

Location Benefits:

  • Walking distance to schools, parks, shopping, groceries, and restaurants.
  • Close proximity to Silicon Valley companies (8–15 mins to Facebook campuses).
  • Near Coyote Hills Regional Park, NewPark Mall, and Union Landing shopping.
  • Commuter-friendly with quick freeway access, yet tucked away in a tranquil community.
  • Perfect for families and those seeking a well-rounded, convenient lifestyle.
2

Price and Status History

date type price
1981-06-01 Off Market 24500
1987-10-30 Sold 87000
2007-08-09 For Sale NaN
2007-10-19 Sold 387000
2007-10-24 Sold 387000
2014-04-16 Sold 382000
2014-04-23 Sold 380000
2021-07-20 For Sale NaN
2021-08-25 Sold 705000
2023-10-12 Off Market NaN
2023-10-20 Coming Soon NaN
2023-11-02 For Sale 715000
2024-01-03 For Sale NaN
2024-01-16 For Sale 720000
2024-01-17 For Sale NaN
2024-02-14 Sold 817000
2025-01-21 Sold 164754
3

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.

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 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 1

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
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11 5 5 8 7 8 6 7
12 5 3 5 4 7 4 5
13 5 5 5 5 5 4 4
14 3 5 6 7 4 4 5
15 4 4 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 1 2 2
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