827 S Idaho St, San Mateo, CA 94402, USA

Property CA
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1

Property Overview:

827 S Idaho St is a single-family home in San Mateo, CA 94402, built in 1938. It features 2 bedrooms, 1.5 bathrooms, and 1,250 sq. ft. of living space on a 5,900–6,192 sq. ft. lot (survey varies). The home includes an attached one-car garage, an artist’s studio with half bath, and is currently zoned R-2 (allowing for expansion, duplex, or ADU). The property last sold for $1,120,000 on August 19, 2020. Estimated current value: $1,113,575–$1,439,990.

Neighborhood Highlights:

  • Crime Rate:

    • Low overall crime risk (7 criminal/sex offenders within 1 mile).

  • Schools:

    • Highly rated nearby schools: Sunnybrae Elementary, Borel Middle, Aragon High.
    • Other nearby schools: Martha Williams School, St. Timothy School.

  • Nearby Amenities:

    • Grocery stores: Everybody’s Market, Market Fiesta Latina, Chavez Supermarkets.
    • Coffee shops: Shoreview Cafe, Mini Coffee, JOE & THE JUICE.
    • Restaurants: Dum - Indian Comfort Food, Kamakshi’s Kitchen, America’s House.
    • Parks: Brae Park, Ryder Court Park, Central Park.

  • Natural Disaster Risk:

    • Very high earthquake risk
    • Very low tornado risk
    • Moderate to low flood risk

  • Average Sale Price for Similar Homes:

    • Ranges from $1,113,575 to $1,406,603.

Property Features:

  • Charming 2-bedroom, 1-bath home with hardwood flooring in living room and bedrooms.
  • Wood-burning fireplace in living room.
  • Classic Wedgewood stove and breakfast nook with built-in shelving in kitchen.
  • Attached one-car garage plus artist’s studio with half bath.
  • Newer roof (approx. 3 years old).
  • Sewer lateral replaced in 2013 (city program).
  • Large, level lot with R-2 zoning:
    • Potential to expand existing home, build a second unit/duplex, or add an ADU.
  • City-approved plans and building permit for a 2,362 sq. ft. home with three suites, office, full hallway bath, and two-car garage (for expansion).
  • Prime corner location at Idaho & 9th Ave, minutes from Downtown San Mateo.

Location Benefits:

  • Central location with easy access to downtown San Mateo, shopping, dining, highways, Caltrain, and SFO airport.
  • Top-rated high school nearby (Aragon High).
  • Ideal for commuters to San Francisco and Silicon Valley.
  • Established, sought-after neighborhood with strong potential for rental income or future expansion.
2

Price and Status History

date type price
2020-07-31 For Sale 1098000
2020-08-07 Pending NaN
2020-08-08 Pending NaN
2020-08-19 Sold 1027500
2023-09-13 For Sale 1439990
2023-12-15 For Sale 1439990
2024-06-01 Price Estimation 1113575
2024-12-08 Off Market NaN
2025-04-30 For Sale 2488000
3

Superfund Enterprise Management System

SITE NAME ADDRESS FEDERAL FACILITY NPL STATUS NON-NPL STATUS CONTAMINANTS SEMS EPA ID DISTANCE (MILES)
BROWNING-FERRIS INDS East 3rd Avenue, San Mateo, CA 94401, USA N N NF 0 CAD980637045 0.44
UNIVERSAL COATINGS OFF 280 EUGENE A DORAN BRG, San Mateo, CA 94401, USA N N NF 0 CAD980637037 0.92

Toxic Release Inventory

FACILITY NAME ADDRESS TOTAL FORMS LAST FORM YEAR RISK SCREENING FACILITY ID DISTANCE (MILES)
WAYNE HERZOG ENGRAVING INC 910 South Amphlett Boulevard, San Mateo, CA 94402-1801, USA 6 1990 N/A 94402WYNHR910SA 0.06

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 0.88
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 2
AE 0 0 6 14
AH 0 0 0 1
AO 0 0 0 0
VE 0 0 0 2

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 1 1 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 1
5

Traffic Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 69 68 61 62 72 65 68
1 71 71 NaN 70 66 70 72
2 71 70 72 70 69 68 70
3 69 NaN NaN 69 68 69 70
4 64 68 70 73 69 69 71
5 NaN 69 66 68 70 71 NaN
6 61 70 66 69 NaN 71 65
7 65 69 68 67 67 66 64
8 69 68 NaN 69 67 70 65
9 68 67 68 66 66 61 68
10 NaN 64 70 NaN 69 63 61
11 69 69 69 71 69 NaN NaN
12 72 NaN NaN 68 NaN 65 68
13 NaN 68 73 68 NaN 71 67
14 67 67 74 70 45 69 67
15 71 71 68 74 NaN 67 70
16 NaN NaN 72 76 69 68 68
17 72 73 70 71 74 70 69
18 69 67 74 72 NaN 68 69
19 69 70 72 71 70 73 70
20 72 73 73 68 65 49 70
21 70 NaN 65 70 NaN 69 69
22 NaN 74 73 71 76 67 72
23 67 NaN 74 71 71 70 66
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Airplane Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 3 3 2 3 4 3 2
1 2 3 2 3 3 2 2
2 2 2 3 3 3 3 2
3 1 1 1 1 1 1 1
4 1 1 1 1 1 1 1
5 2 2 1 2 1 1 1
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