4-6 Warren Road, San Mateo, CA 94401, USA


Property Overview:

4 & 6 Warren Road is a one-of-a-kind corner duplex located on the border of San Mateo & Burlingame, built in 1941. The property sits on an oversized 6,852 sq. ft. corner lot and features two large 2-bedroom, 1-bathroom units:

  • 4 Warren: 1,607 sq. ft.
  • 6 Warren: 1,291 sq. ft.
    Each unit includes a private one-car garage and a large private backyard.

Neighborhood Highlights:

  • Prime Location:

    • Just blocks from Burlingame Avenue with access to top restaurants and shopping.
    • Located ON the Burlingame/San Mateo border.
  • Upcoming Improvements:

    • In the center of the CalTrans ECR Roadway Renewal Project (starting mid-2024), which will bring:
      • Updated drainage
      • Underground power lines
      • Pedestrian walkways
      • Smoother pavement
      • Increased walkability along El Camino Real

Property Features:

  • Two massive units:
    • 2 bedrooms / 1 bathroom each
    • Private one-car garages
    • Large private backyards
  • Tenants pay ALL utilities directly:
    • Water, trash removal, gas, and electric
  • Sewer lateral line work:
    • Scheduled for completion and clearance prior to closing

Location Benefits:

  • Walkable to Burlingame Avenue: Shopping, dining, and amenities just a few blocks away
  • Easy access to major transportation corridors
  • Future infrastructure upgrades will enhance property value and neighborhood appeal
  • Ideal for investors or owner-occupants seeking a premium duplex in a sought-after location

Price and Status History

date type price
1976-04-02 Rental 106500
2010-08-19 Rental 239000
2024-04-01 For Sale 2400000
2024-04-02 For Sale 2400000
2024-04-24 For Sale 2198000
2024-05-06 Pending 2198000
2024-05-13 Sold 2200000

Superfund Enterprise Management System

SITE NAME ADDRESS FEDERAL FACILITY NPL STATUS NON-NPL STATUS CONTAMINANTS SEMS EPA ID DISTANCE (MILES)
PICKRELL D J 1408 Chapin Avenue, Burlingame, CA 94010-4003, USA N N NF 0 CAD074632522 0.56

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 1 3
AE 0 0 0 26
AH 0 0 0 1
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 San Francisco South 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 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 1
Very High 0 0 1 1

Traffic Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 60 63 66 66 64 64 38
1 62 NaN 65 60 61 64 62
2 62 61 61 63 63 52 61
3 NaN 62 61 62 42 40 62
4 61 62 62 63 61 58 59
5 61 60 62 50 64 63 62
6 58 61 59 59 56 NaN 61
7 59 58 59 59 NaN 58 60
8 58 59 59 58 57 58 NaN
9 NaN 60 59 61 58 60 60
10 58 57 59 59 NaN 59 NaN
11 60 58 57 60 59 59 NaN
12 NaN 60 58 60 59 58 59
13 59 57 59 61 60 58 NaN
14 62 60 57 62 61 NaN 58
15 63 63 63 64 65 NaN 59
16 60 61 62 59 61 58 62
17 61 63 63 64 63 62 63
18 63 62 64 65 41 63 63
19 63 64 63 62 65 64 63
20 63 NaN 63 52 65 62 63
21 64 61 63 62 NaN 61 63
22 NaN 62 65 61 NaN 64 63
23 66 63 65 59 62 60 61

Airplane Noise by Hour x Weekday

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