On market for first time in 35 years. Terrific property & location. 4BD/3BA w/ LG living/dining rm, country-style kit, 2-car gar, pool/pool house Easy to show. Go direct/lockbox
Single-familyProperty Type
1951Year Built
1.01 acresLot Size
$1,365Est. Price/Sq.Ft.
Listed by Jay Gertridge•DRE #01395065• Kerwin & Associates
Bought with Carolyn Botts• Compass
Source:MLSListings #ML80710556
Redfin Estimate
$3,959,438
$2.2M since sold in May 2010$56K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 32.9% higher than the average sale price ($2.98M) of 4 comparable homes.
On market for first time in 35 years. Terrific property & location. 4BD/3BA w/ LG living/dining rm, country-style kit, 2-car gar, pool/pool house Easy to show. Go direct/lockbox
Year
Property tax
Land + Additions
Assessment*
2025
$34,852 (+1.3%)
$2,065,313 + $971,973
$3,037,286
2024
$34,419 (+1.6%)
$2,065,313 + $971,973
$3,037,286
2023
$33,871 (+2.8%)
$2,024,817 + $952,917
$2,977,734
2022
$32,950 (+1.4%)
$1,985,115 + $934,234
$2,919,349
2021
$32,510 (+0.3%)
$1,946,192 + $915,918
$2,862,110
2020
$32,398 (+1.2%)
$1,908,032 + $897,961
$2,805,993
2019
$32,019 (+5.1%)
$1,888,468 + $888,755
$2,777,223
2018
$30,452 (+1.3%)
$1,851,440 + $871,331
$2,722,771
2017
$30,056 (+1.9%)
$1,779,548 + $837,499
$2,617,047
2016
$29,506 (+3.6%)
$1,779,548 + $837,499
$2,617,047
2015
$28,482 (+5.6%)
$1,744,655 + $821,079
$2,565,734
2014
$26,960 (+26.3%)
$1,684,787 + $652,882
$2,337,669
2012
$21,346 (+2.0%)
$1,677,173 + $743,000
$2,420,173
2011
$20,937 (−19.0%)
$1,644,288 + $205,536
$1,849,824
2010
$25,840 (+1.1%)
$1,612,048 + $201,506
$1,813,554
2009
$25,563 (+2.4%)
$2,179,661 + $103,793
$2,283,454
2008
$24,967
$2,184,840 + $104,040
$2,288,880
Tax history for 4850 Alpine Rd
Year
Property tax
Land + Additions
Assessment*
2025
$34,852 (+1.3%)
$2,065,313 + $971,973
$3,037,286
2024
$34,419 (+1.6%)
$2,065,313 + $971,973
$3,037,286
2023
$33,871 (+2.8%)
$2,024,817 + $952,917
$2,977,734
2022
$32,950 (+1.4%)
$1,985,115 + $934,234
$2,919,349
2021
$32,510 (+0.3%)
$1,946,192 + $915,918
$2,862,110
2020
$32,398 (+1.2%)
$1,908,032 + $897,961
$2,805,993
2019
$32,019 (+5.1%)
$1,888,468 + $888,755
$2,777,223
2018
$30,452 (+1.3%)
$1,851,440 + $871,331
$2,722,771
2017
$30,056 (+1.9%)
$1,779,548 + $837,499
$2,617,047
2016
$29,506 (+3.6%)
$1,779,548 + $837,499
$2,617,047
2015
$28,482 (+5.6%)
$1,744,655 + $821,079
$2,565,734
2014
$26,960 (+26.3%)
$1,684,787 + $652,882
$2,337,669
2012
$21,346 (+2.0%)
$1,677,173 + $743,000
$2,420,173
2011
$20,937 (−19.0%)
$1,644,288 + $205,536
$1,849,824
2010
$25,840 (+1.1%)
$1,612,048 + $201,506
$1,813,554
2009
$25,563 (+2.4%)
$2,179,661 + $103,793
$2,283,454
2008
$24,967
$2,184,840 + $104,040
$2,288,880
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Property details
Interior
Bathroom Information
# of Full Baths: 3
# of 1/2 Baths: 1
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Room Information
# of Rooms: 8
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Good
Pool Information
Has Pool
Property Information
Subdivision Name: ESTATE/JOSE ANTONIO MARTINEZ
Living Sq. Ft: 2,900
Gross Sq. Ft: 2,630
Ground Floor Sq. Ft: 2,900
Building Sq. Ft: 2,900
# of Stories: 1
Legal Description: PTN LOT 7 MARTINEZ PARTITION RSM 2/83-84
Parking & Garage Information
# of Parking Spaces: 2
Garage/Parking Sq. Ft: 708
Lot Information
# of Buildings: 1
Land Sq. Ft: 44,159
Legal Lot Number: 7
Acres: 1.0138
Zoning Code: R1001A
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 4
Baths: 3.5
Sq. Ft.: 2,900
Stories: 1.0
Lot Size: 1.01 acres
Style: Single Family Residential
Year Built: 1951
Year Renovated: 1988
County: San Mateo County
APN: 079140320
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
Corte Madera School
Public 4-8 • Assigned • 0.3mi
10/10
Woodside High School
Public 9-12 • Assigned • 5.7mi
8/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.62% chance of being in a wildfire in next 30 years
2/10 Heat Factor
7 days above 94° expected this year, 14 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
7/10 Air Factor
12 unhealthy days expected this year, 12 days in 30 years
Provided by First Street
Historical weather
Portola Valley, CA • 94028
Average low and high temperatures (°F)
61
43
62
45
69
48
68
47
73
50
78
53
77
54
83
56
80
57
76
53
63
47
59
45
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.7 hours in
June and 5 hours in December, placing it above the
U.S. average for solar exposure.
10.7 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$3.76M – $4.55M
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