639 Middlefield Rd, Palo Alto, CA 94301, USA

Property CA
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1

Property Overview:

639 Middlefield Rd is a single-family home in Palo Alto, CA, built in 1978. It features 3 bedrooms, 2 bathrooms, an office area, and 1,798 sq. ft. of living space. The home includes an attached garage with laundry, fireplace, dual heating, and cooling system. Designed by one of Palo Alto’s best-known residential architects, it received the American Institute of Architects Award of Merit for Homes for Better Living.

Neighborhood Highlights:

  • Crime Rate:

    • Personal crime risk: 4.4% (lower than state average of 11.8%)
    • Property crime risk: 10.7% (about equal to state average of 10.8%)

  • Schools:
    Nearby schools include Addison Elementary, Frank S. Greene Jr. Middle, Palo Alto High, and Packard Children’s Hospital/Stanford.

    • Average SAT score: 1221 (626 Math, 595 English) — well above state average of 975.

  • Job Market:

    • 80.8% white-collar jobs, 19.2% blue-collar jobs
    • Unemployment rate: 2.1% (lower than state average of 4.7%)

  • Demographics:

    • Community population: 15,402 (17% growth since 2000)
    • 50% families with children
    • Largest age group: 45-54 years (15.56%)
    • Second-largest: 25-34 years (13.36%)

  • Natural Disaster Risk:

    • High flood risk
    • Low tornado risk
    • High earthquake risk

  • Weather:

    • Average temperature: 51.7°F (January), 87.6°F (July)
    • Average rainfall: 17.3 inches/year
    • Average snowfall: 0.1 inches/year

  • Cost of Living:

    • Median household income: $132,129
    • Average annual spending: $83,423

Property Features:

  • Award-winning modern design with soaring 16-ft ceilings and clerestory windows for abundant natural light
  • Hardwood floors and balconies on three sides
  • Updated kitchen with quartz counters and stainless steel appliances
  • Spacious master suite opens to the wraparound yard
  • Fireplace in living room
  • Dual heating and energy-efficient HVAC (including heat pump and 5.12kW solar system)
  • All closets with organizers
  • Extra-large one-car garage with cabinets and storage
  • No HOA
  • Wraparound yard with gardens, deck, benches, and blackboard for relaxing, entertaining, or gardening

Location Benefits:

  • Prime Downtown Palo Alto location — walkable to shopping, restaurants, movies, medical/dental offices, and parks
  • Superb for Silicon Valley & Stanford commutes — near train and easy access to Hwy 101 and other routes
  • Great K-12 schools
  • Safe, vibrant, and family-friendly community
2

Price and Status History

date type price
2016-08-12 Sold 1900000
2019-02-22 Sold 1227240
2023-08-29 Off Market NaN
2025-03-27 For Sale 2920000
2025-04-07 For Sale 2800000
2025-04-24 For Sale 2650000
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

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 4 23
AE 0 0 0 6
AH 1 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 Mindego Hill 0 0 1
San Andreas - Peninsula Palo Alto 0 0 2
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 3 0

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 0
5

Traffic Noise by Hour x Weekday

hour_of_day Monday Tuesday Wednesday Thursday Friday Saturday Sunday
0 54 NaN NaN 54 55 56 NaN
1 50 57 53 54 50 54 53
2 51 53 53 54 53 54 52
3 54 51 50 55 52 52 53
4 50 52 NaN 51 51 52 51
5 52 50 51 50 50 51 54
6 52 51 51 50 52 51 51
7 NaN 50 50 52 52 50 47
8 52 NaN 48 52 NaN NaN 51
9 51 51 50 49 49 NaN 52
10 51 50 NaN 50 51 NaN 51
11 51 51 52 NaN NaN NaN 51
12 NaN 52 NaN 52 50 NaN NaN
13 52 50 50 50 51 NaN 52
14 54 51 51 54 52 49 49
15 53 NaN 58 57 58 NaN 49
16 51 50 54 53 56 52 52
17 51 53 53 51 55 49 53
18 51 54 55 55 56 NaN 51
19 55 49 57 55 55 54 54
20 53 53 56 55 52 51 56
21 NaN 53 55 55 54 NaN 52
22 56 54 57 NaN 54 52 49
23 NaN 54 54 54 53 51 54
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Airplane Noise by Hour x Weekday

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0 1 1 2 1 1 1 1
1 1 1 1 1 1 2 1
2 1 1 1 2 2 2 1
3 1 1 1 1 1 1 1
4 1 1 1 1 0 3 1
5 1 1 1 2 1 1 1
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18 5 6 5 8 5 6 6
19 5 4 7 6 5 3 4
20 4 3 3 3 3 3 2
21 2 3 3 3 3 2 3
22 2 1 2 2 2 3 1
23 2 2 1 1 1 1 1