9 Valley Oak St
Portola Valley, CA 94028
5 bd 3 ba 3,120 sqft Built 1985 Lot 20,038 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,312,373 | $1,995,903 | $3,308,276 | $37,810 |
| 2024 | $1,312,373 | $1,995,903 | $3,308,276 | $37,405 |
| 2023 | $1,261,413 | $1,918,400 | $3,179,813 | $36,815 |
| 2022 | $1,236,680 | $1,880,785 | $3,117,465 | $35,813 |
| 2021 | $1,212,432 | $1,843,907 | $3,056,339 | $35,337 |
| 2020 | $1,200,000 | $1,825,000 | $3,025,000 | $35,208 |
| 2019 | $289,422 | $53,592 | $343,014 | $5,529 |
| 2018 | $283,748 | $52,542 | $336,290 | $5,290 |
| 2017 | $278,185 | $51,512 | $329,697 | $5,192 |
| 2016 | $272,731 | $50,502 | $323,233 | $5,076 |
| 2015 | $268,635 | $49,744 | $318,379 | $4,993 |
| 2014 | $263,374 | $48,770 | $312,144 | $4,827 |
| 2013 | $262,185 | $48,550 | $310,735 | $4,742 |
| 2012 | $257,045 | $47,599 | $304,644 | $4,506 |
| 2011 | $252,006 | $46,666 | $298,672 | $4,384 |
| 2010 | $250,124 | $46,318 | $296,442 | $4,298 |
| 2009 | $250,719 | $46,429 | $297,148 | $4,008 |
| 2008 | $245,804 | $45,519 | $291,323 | $3,792 |
| 2007 | $240,985 | $44,627 | $285,612 | $3,689 |
Property facts
Year built
1985
Property type
single_family
Stories
2
Beds
5
Baths
3
Living area
3,120 sqft
Lot size
20,038 sqft
ZIP code
94028
City
Portola Valley
Street
Valley Oak St
Coordinates
37.36271, -122.20637
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 9 Valley Oak St last sell?
No public-record sale is on file for 9 Valley Oak St.
What is the current tax assessment for 9 Valley Oak St?
The most recent total assessment for 9 Valley Oak St (year 2025) is $3,308,276 with $37,810 in property tax.
When was 9 Valley Oak St built?
9 Valley Oak St was built in 1985.
How does 9 Valley Oak St compare to others on Valley Oak St?
We track 7 other properties on Valley Oak St. Browse the list under "Other properties on Valley Oak St" to compare beds, baths, and sale history.
What are the property facts for 9 Valley Oak St?
9 Valley Oak St is a 5 bed, 3 bath, 3,120 sqft, 20,038 sqft lot single_family.
Is 9 Valley Oak St a flip candidate?
No — 9 Valley Oak St does not appear in our flips dataset.
Is 9 Valley Oak St a tax-appeal candidate?
No — 9 Valley Oak St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-1.6%
Implied 1-yr
-6.2%
2026 Q2
$4.26M
2026 Q3
$4.19M
ZIP 94028 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Valley Oak St