451 23rd Ave, San Mateo, CA 94403, USA

Property CA
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1

Property Overview:

451 23rd Ave is a single-family home in San Mateo, CA, built in 1931. It features 4 bedrooms, 3 bathrooms (including a downstairs bedroom & bath), and 2,944 sq. ft. of living space. The home includes a detached garage and a central heating system. Last sold in April 2019 for $1,988,000; current estimated value is $2,667,000.

Neighborhood Highlights:

  • Crime Rate:

    • Personal crime risk: 6% (lower than state average of 11.8%).
    • Property crime risk: 6.6% (lower than state average of 10.8%).

  • Schools:
    Nearby schools include Meadow Heights Elementary, Borel Middle, and Hillsdale High.

    • Average SAT score: 1076 (553 Math, 523 English)—higher than state average of 975.
    • Assigned to Aragon High School (highly regarded).

  • Job Market:

    • 67.9% white-collar jobs, 32.1% blue-collar jobs.
    • Unemployment rate: 2.5% (lower than state average of 4.7%).

  • Demographics:

    • Community population: 38,894 (7% growth since 2000).
    • 64% families with children.
    • Largest age group: 35-44 years (16.07%); second largest: 25-34 years (14.94%).

  • Natural Disaster Risk:

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

  • Weather:

    • Average temperature: 51.6°F (January), 70.5°F (July).
    • Average rainfall: 20.4 inches/year.
    • Average snowfall: 0 inches/year.

  • Cost of Living:

    • Median household income: $83,713.
    • Average annual spending: $61,232.

Property Features:

  • Tudor-inspired architecture with a blend of classic character & modern elegance.
  • Meticulously remodeled with quality craftsmanship and modern amenities.
  • Gorgeous granite, eat-in kitchen with high-end stainless steel appliances.
  • Spacious family room with backyard access—ideal for entertaining.
  • Master suite retreat with balcony overlooking a lush backyard.
  • Beautifully landscaped lot with multiple fruit trees (fig, plum, peach, two kinds of lemon, orange).
  • Privacy, comfort, and functionality throughout.

Location Benefits:

  • Close to Beresford Park & Recreation Center, parks, and the renovated Hillsdale Mall.
  • Easy access to public transportation and commute corridors.
  • Family-friendly community with highly rated schools and recreation options.
  • Perfect for entertaining, playing, and relaxation.
2

Price and Status History

date type price
1985-02-18 Rental 174000
1986-02-14 Rental 193000
2006-05-02 For Sale 1149000
2006-06-11 Sold 1075000
2019-02-06 For Sale 2088000
2019-03-06 For Sale NaN
2019-03-18 Pending NaN
2019-03-22 Sold 1988000
2019-04-22 Sold 1807000
2024-07-01 Price Estimation 2124254
2024-11-08 Sold 1988000
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

PLANT NAME ADDRESS OPERATING STATUS DISTANCE (MILES)
DELAWARE SHELL AUTO SERVICE 1790 South Delaware Street, San Mateo, CA 94402-2651, USA OPR: Operating 0.9
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 2
AH 0 0 0 2
AO 0 0 0 1
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 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 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 1
Very High 0 0 1 7
5

Traffic Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 NaN 32 NaN 45 49 24 NaN
1 NaN 50 NaN NaN NaN NaN NaN
2 49 39 43 NaN NaN 39 NaN
3 43 NaN NaN NaN NaN NaN NaN
4 54 50 NaN 47 51 NaN NaN
5 NaN NaN NaN 46 NaN NaN NaN
6 NaN NaN 38 NaN 38 36 47
7 NaN NaN NaN NaN NaN NaN NaN
8 NaN NaN 41 NaN NaN NaN NaN
9 36 NaN NaN 37 NaN NaN NaN
10 NaN NaN 34 NaN NaN NaN NaN
11 NaN NaN NaN NaN 41 NaN 36
12 40 NaN 34 33 41 NaN 39
13 NaN NaN NaN NaN NaN NaN NaN
14 36 NaN NaN NaN NaN NaN 39
15 NaN NaN 44 NaN NaN 49 NaN
16 44 NaN NaN NaN NaN NaN NaN
17 NaN 39 NaN 49 47 NaN NaN
18 49 NaN 49 NaN NaN 45 NaN
19 NaN 50 NaN NaN NaN NaN NaN
20 NaN 45 NaN NaN NaN NaN 47
21 NaN NaN NaN NaN NaN 42 NaN
22 NaN NaN 36 NaN NaN NaN NaN
23 43 48 NaN NaN NaN NaN NaN
6

Airplane Noise by Hour x Weekday

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