15 Sandstone St
Portola Valley, CA 94028
4 bd 2 ba 2,620 sqft Built 1985 Lot 23,065 sqft single_family
Most recent sale
$3,100,000
Oct 31, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Jan 18, 2023 | Sold | $980,500 | Public Record |
| Dec 23, 2022 | Sold | $1,045,000 | Public Record |
| Oct 31, 2022 | Sold | $3,100,000 | MLS #ML81906947 |
| Sep 12, 2022 | Listed | $3,295,000 | MLS #ML81906947 |
| Jul 21, 2022 | Listing removed | $3,450,000 | MLSListings |
| Jun 17, 2022 | Price changed | $3,450,000 | MLS #ML81895577 |
| Jun 9, 2022 | Listed | $3,850,000 | MLS #ML81895577 |
| May 13, 1988 | Sold | $697,000 | Public Record |
| Mar 14, 1985 | Sold | $449,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $593,027 | $2,632,211 | $3,225,238 | $36,969 |
| 2024 | $593,027 | $2,632,211 | $3,225,238 | $36,514 |
| 2023 | $570,000 | $2,530,000 | $3,100,000 | $35,937 |
| 2022 | $831,774 | $541,110 | $1,372,884 | $16,693 |
| 2021 | $815,465 | $530,500 | $1,345,965 | $16,469 |
| 2020 | $807,105 | $525,061 | $1,332,166 | $16,456 |
| 2019 | $791,280 | $514,766 | $1,306,046 | $16,249 |
| 2018 | $775,766 | $504,673 | $1,280,439 | $15,473 |
| 2017 | $760,556 | $494,778 | $1,255,334 | $15,254 |
| 2016 | $745,644 | $485,077 | $1,230,721 | $14,963 |
| 2015 | $734,445 | $477,791 | $1,212,236 | $14,812 |
| 2014 | $720,059 | $468,432 | $1,188,491 | $14,403 |
| 2013 | $716,806 | $466,315 | $1,183,121 | $14,187 |
| 2012 | $702,752 | $457,172 | $1,159,924 | $13,828 |
| 2011 | $688,974 | $448,208 | $1,137,182 | $13,538 |
| 2010 | $683,826 | $444,859 | $1,128,685 | $13,321 |
| 2009 | $685,452 | $445,916 | $1,131,368 | $13,037 |
| 2008 | $672,013 | $437,173 | $1,109,186 | $12,661 |
| 2007 | $658,837 | $428,601 | $1,087,438 | $12,326 |
Property facts
Year built
1985
Property type
single_family
Stories
2
Beds
4
Baths
2
Living area
2,620 sqft
Lot size
23,065 sqft
ZIP code
94028
City
Portola Valley
Street
Sandstone St
Coordinates
37.36390, -122.20874
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$18,600
Gross rental yield
7.20%
Implied cap rate
4.68%
Trend-extrapolated value
—
Frequently asked questions
When did 15 Sandstone St last sell?
15 Sandstone St most recently sold on Oct 31, 2022 for $3,100,000.
What is the current tax assessment for 15 Sandstone St?
The most recent total assessment for 15 Sandstone St (year 2025) is $3,225,238 with $36,969 in property tax.
How does 15 Sandstone St's assessment compare to its last sale price?
The current assessment is 4.0% above the last sale price of $3,100,000.
When was 15 Sandstone St built?
15 Sandstone St was built in 1985.
How does 15 Sandstone St compare to others on Sandstone St?
We track 4 other properties on Sandstone St. Browse the list under "Other properties on Sandstone St" to compare beds, baths, and sale history.
What are the property facts for 15 Sandstone St?
15 Sandstone St is a 4 bed, 2 bath, 2,620 sqft, 23,065 sqft lot single_family.
Is 15 Sandstone St a flip candidate?
No — 15 Sandstone St does not appear in our flips dataset.
Is 15 Sandstone St a tax-appeal candidate?
Yes — 15 Sandstone St appears in our tax-appeal candidates list, meaning its current assessment exceeds its recent sale price by 15% or more.
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 Sandstone St