20 Cobblestone Ln, San Carlos, CA 94070, USA

Property CA
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1

Property Overview:

20 Cobblestone Ln is a single-family home in San Carlos, CA 94070, built in 1975. It features 4 bedrooms, 3 bathrooms, and 2,720 sq. ft. of living space on a 21,675 sq. ft. lot. The home includes a 3-car garage, central heating, and a sparkling pool. The estimated home value is $2,484,000.

Neighborhood Highlights:

  • Crime Rate:

    • Personal crime risk: 3.3% (lower than state average of 11.8%).
    • Property crime risk: 4.5% (lower than state average of 10.8%).
    • Very low overall crime risk with only 1 criminal and sex offender within 1 mile.

  • Schools:
    Nearby schools include Clifford Elementary, Sequoia High, John F Kennedy Middle, Central Middle, and Canyon Oaks Youth Center.

    • Average SAT score: 1039 (higher than state average of 975).
    • Schools are rated very good.

  • Job Market:

    • 71.4% white-collar jobs, 28.6% blue-collar jobs.
    • Unemployment rate: 1.8% (lower than state average of 4.7%).

  • Demographics:

    • Community population: 28,104 (13% growth since 2000).
    • 68% families with children.
    • Largest age group: 45-54 years (17.6%), followed by 35-44 years (17.2%).

  • Natural Disaster Risk:

    • Very high earthquake risk.
    • Very low tornado risk.
    • Minimal/low flood risk.

  • Weather:

    • Average temperature: 52.1°F (January), 76.8°F (July).
    • Average rainfall: 20.3 inches/year.
    • Average snowfall: 0 inches/year.

  • Cost of Living:

    • Median household income: $100,859.
    • Average annual spending: $69,772.

  • Home Values:

    • Average sale price for similar homes: $2,722,554 – $2,869,585.

Property Features:

  • Single-level home on a peaceful cul-de-sac in the Alder Manor neighborhood.
  • Light-filled, open floor plan with high, beamed ceilings, walls of windows, and hardwood floors.
  • Formal entry leads to a living room with custom cabinetry and fireplace, and a formal dining room.
  • Bright, functional kitchen flows into a spacious family room with a second fireplace.
  • Generously sized en-suite with deck access.
  • Laundry/mudroom with access to the 3-car garage (ample storage and tool bench).
  • Private primary suite with walk-in closet and spa access.
  • Two additional bedrooms share a full hall bathroom.
  • Sprawling back deck and sparkling pool—ideal for entertaining or relaxing.
  • Close to downtown San Carlos, parks, hiking trails, and major commute routes.
  • Timeless appeal with thoughtful upgrades for comfort and convenience.

Location Benefits:

  • Quiet, family-friendly community with strong schools and low crime.
  • Minutes from vibrant downtown San Carlos restaurants and shops.
  • Easy access to parks, hiking trails, and major commute routes.
  • Ideal for families seeking a blend of suburban tranquility and urban convenience.
2

Price and Status History

date type price
1976-02-10 Off Market 130000
2024-01-11 Price Estimation 2484000
2025-01-17 For Sale 3495000
2025-01-29 Sold 3580000
2025-02-13 Sold 3580000
2025-02-15 Sold 3495000
3

Superfund Enterprise Management System

SITE NAME ADDRESS FEDERAL FACILITY NPL STATUS NON-NPL STATUS CONTAMINANTS SEMS EPA ID DISTANCE (MILES)
GTE LENKURT INC 1105 COUNTY ROAD, San Carlos, CA 94070, USA N N DR 0 CAD009118605 0.73
CEDAR STREET RAD SOURCES 1054 Cedar Street, San Carlos, CA 94070-3867, USA N N RO 0 CAN000905619 0.88

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 1
AE 0 1 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
San Andreas - Peninsula Montara Mountain 0 0 1
San Andreas - Peninsula Palo Alto 0 0 2
San Andreas - Peninsula San Mateo 0 0 1
San Andreas - Peninsula Woodside 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 0 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 1 0
Very High 1 2 3 3
5

Traffic Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 49 51 NaN NaN 51 NaN NaN
1 49 NaN 53 NaN 48 47 51
2 51 49 49 49 50 48 43
3 51 NaN 48 52 NaN 49 51
4 NaN NaN 48 50 49 NaN NaN
5 49 NaN 50 NaN NaN NaN 49
6 44 50 48 50 47 NaN 48
7 NaN 47 45 50 51 NaN 48
8 NaN 48 NaN 47 47 NaN NaN
9 43 NaN NaN NaN NaN NaN NaN
10 NaN 50 NaN NaN NaN NaN NaN
11 47 50 49 NaN NaN NaN NaN
12 NaN 49 48 51 NaN NaN 48
13 47 NaN 48 49 45 NaN 48
14 48 NaN NaN NaN 48 NaN 49
15 NaN NaN 50 53 NaN NaN NaN
16 48 49 47 50 NaN NaN 43
17 50 47 49 NaN NaN NaN 49
18 NaN 49 NaN 50 50 NaN 51
19 51 NaN NaN 48 52 NaN 48
20 NaN 49 NaN 49 49 NaN 48
21 NaN NaN NaN NaN NaN NaN NaN
22 NaN 48 49 NaN 49 50 48
23 NaN NaN 49 49 50 50 48
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Airplane Noise by Hour x Weekday

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