Twin Creeks South, 506 Cartagena Ln, San Ramon, CA 94583, USA


Property Overview:

506 Cartagena Ln is a single-family home in San Ramon, CA, built in 1979. It features 4 bedrooms, 2 bathrooms, and 2,106 sq. ft. of living space. The home includes a parking garage and has an estimated value of $1,209,000.


Neighborhood Highlights:

  • Population & Demographics:

    • Community population: 44,826 (14.4% growth since 2000)
    • 73.5% families with children
    • Largest age group: 45-54 years (17.62%)
    • Second largest: 35-44 years (16.01%)
  • Crime Rate:

    • Personal crime risk: 1.9% (well below state average of 11.8%)
    • Property crime risk: 5% (below state average of 10.8%)
  • Schools:

    • Nearby schools: Twin Creeks Elementary, Iron Horse Middle, California High
    • Average SAT score: 1025 (532 Math, 493 English) — above state average of 975
  • Job Market:

    • 73.6% white-collar jobs, 26.4% blue-collar jobs
    • Unemployment rate: 2.1% (lower than state average of 4.7%)
  • Cost of Living:

    • Median household income: $106,061
    • Average annual spending: $72,645
  • Natural Disaster Risk:

    • Low flood risk, low tornado risk, high earthquake risk
  • Weather:

    • Average temperature: 44.7°F (January), 73.1°F (July)
    • Average rainfall: 21.0 inches/year
    • Average snowfall: 0 inches/year

Property Features:

  • Extensively updated with modern HVAC systems and low-voltage lighting
  • Spacious master suite on the second floor, plus two additional bedrooms and a family bathroom
  • Fourth bedroom off the front hall, ideal for guests or office
  • Large living room with adjacent dining area for gatherings
  • Remodeled kitchen with light wood cabinetry and solid surface countertops, open to the family room
  • Backyard oasis:
    • Shaded redwood deck with 5-person spa
    • Pristine lawn framed by majestic palm trees and specimen redwoods
    • Multiple patio areas and retractable awning
    • Large gravel dog run
    • Space for boat or RV parking

Location Benefits:

  • Minutes from shopping, entertainment, and the new City Center
  • Award-winning schools nearby
  • Highly sought-after Twin Creeks neighborhood
  • Elevated position with spectacular curb appeal
  • Perfect for family living and entertaining

Price and Status History

date type price
1970-01-01 For Sale 1798000.0
1983-07-11 Rental 166000.0
1999-09-16 Sold 425000.0
2004-03-09 Sold 674000.0
2021-08-04 For Sale NaN
2021-09-17 Sold 1475000.0
2025-01-08 Sold 1798000.0
2025-01-12 Pending 1073487.5
2025-01-22 Pending NaN
2025-02-20 Sold 1722350.0

Superfund Enterprise Management System

SITE NAME ADDRESS FEDERAL FACILITY NPL STATUS NON-NPL STATUS CONTAMINANTS SEMS EPA ID DISTANCE (MILES)
PG&E ENGINEERING RESEARCH CTR 3400 Crow Canyon Road, San Ramon, CA 94583-1308, USA N N NF 0 CAD073926628 0.94

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.

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 8
AE 0 0 0 2
AH 0 0 0 0
AO 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.

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 Diablo 0 1 0
Northern Calaveras Dublin 0 1 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 0 3
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 2 1
Very High 0 0 0 0

Traffic Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 42 43 NaN NaN NaN NaN NaN
1 NaN NaN NaN NaN NaN 46 NaN
2 NaN NaN 44 NaN NaN NaN NaN
3 NaN 44 NaN NaN NaN NaN NaN
4 NaN 44 45 NaN NaN NaN 45
5 NaN NaN NaN NaN NaN NaN NaN
6 NaN 45 45 45 44 NaN NaN
7 45 NaN NaN NaN 45 NaN 45
8 NaN 43 NaN 45 NaN NaN NaN
9 NaN 44 44 NaN NaN NaN NaN
10 NaN NaN NaN 44 45 45 NaN
11 45 NaN NaN NaN 45 45 NaN
12 NaN NaN NaN NaN NaN NaN NaN
13 NaN NaN NaN NaN NaN NaN NaN
14 NaN 45 NaN NaN 44 NaN 44
15 NaN 44 NaN NaN NaN NaN NaN
16 45 45 44 NaN NaN NaN NaN
17 NaN NaN NaN 44 NaN NaN NaN
18 NaN NaN NaN NaN NaN NaN 44
19 45 NaN NaN NaN 44 NaN 46
20 NaN NaN NaN NaN NaN NaN NaN
21 NaN 45 NaN NaN NaN NaN NaN
22 NaN NaN 44 NaN NaN NaN 45
23 45 NaN NaN NaN NaN NaN 45

Airplane Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 1 0 1 1 1 1 1
1 1 1 0 1 1 1 1
2 1 1 0 1 1 1 0
3 0 1 0 1 1 2 0
4 0 1 1 1 0 1 1
5 1 1 1 2 1 1 1
6 1 2 2 2 2 1 1
7 2 2 2 2 3 2 1
8 2 2 2 2 2 2 2
9 2 2 2 2 3 4 2
10 2 3 2 2 3 3 3
11 3 3 3 4 4 5 5
12 3 3 4 4 4 2 4
13 4 3 3 5 4 3 4
14 3 5 4 3 4 3 2
15 4 3 4 3 3 3 3
16 3 3 2 3 3 3 3
17 2 3 2 4 3 3 2
18 2 2 2 1 3 1 2
19 1 3 2 2 2 1 2
20 2 1 1 1 1 2 1
21 1 1 2 1 2 1 2
22 1 1 1 2 1 1 1
23 1 1 1 1 1 2 1