18 Santiago Ave
Atherton, CA 94027
7 bd 7 ba 10,800 sqft Built 2001 Lot 46,801 sqft single_family
Most recent sale
$18,650,000
Sep 27, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Sep 27, 2022 | Sold | $18,650,000 | Public Record |
| Jun 17, 2022 | Listed | $21,500,000 | MLS #ML81896693 |
| Jul 1, 1996 | Sold | $1,625,000 | Public Record |
| Aug 30, 1990 | Sold | $1,410,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $7,959,060 | $11,444,400 | $19,403,460 | $214,778 |
| 2024 | $7,959,060 | $11,444,400 | $19,403,460 | $208,882 |
| 2023 | $7,650,000 | $11,000,000 | $18,650,000 | $205,021 |
| 2022 | $2,712,084 | $1,534,764 | $4,246,848 | $48,523 |
| 2021 | $2,658,906 | $1,504,671 | $4,163,577 | $47,616 |
| 2020 | $2,631,643 | $1,489,243 | $4,120,886 | $47,218 |
| 2019 | $2,580,043 | $1,460,043 | $4,040,086 | $46,653 |
| 2018 | $2,529,454 | $1,431,415 | $3,960,869 | $45,507 |
| 2017 | $2,479,857 | $1,403,349 | $3,883,206 | $45,594 |
| 2016 | $2,431,233 | $1,375,833 | $3,807,066 | $44,482 |
| 2015 | $2,394,714 | $1,355,167 | $3,749,881 | $44,087 |
| 2014 | $2,347,805 | $1,328,622 | $3,676,427 | $43,260 |
| 2013 | $2,337,195 | $1,322,618 | $3,659,813 | $42,207 |
| 2012 | $2,291,368 | $1,296,685 | $3,588,053 | $41,568 |
| 2011 | $2,246,440 | $1,271,260 | $3,517,700 | $40,782 |
| 2010 | $2,229,651 | $1,261,759 | $3,491,410 | $40,237 |
| 2009 | $2,234,948 | $1,264,757 | $3,499,705 | $39,789 |
| 2008 | $2,191,126 | $1,239,958 | $3,431,084 | $38,870 |
| 2007 | $2,148,163 | $1,215,646 | $3,363,809 | $37,815 |
Property facts
Year built
2001
Property type
single_family
Stories
—
Beds
7
Baths
7
Living area
10,800 sqft
Lot size
46,801 sqft
ZIP code
94027
City
Atherton
Street
Santiago Ave
Coordinates
37.44477, -122.20098
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$111,900
Gross rental yield
7.20%
Implied cap rate
4.68%
Trend-extrapolated value
—
Frequently asked questions
When did 18 Santiago Ave last sell?
18 Santiago Ave most recently sold on Sep 27, 2022 for $18,650,000.
What is the current tax assessment for 18 Santiago Ave?
The most recent total assessment for 18 Santiago Ave (year 2025) is $19,403,460 with $214,778 in property tax.
How does 18 Santiago Ave's assessment compare to its last sale price?
The current assessment is 4.0% above the last sale price of $18,650,000.
When was 18 Santiago Ave built?
18 Santiago Ave was built in 2001.
How does 18 Santiago Ave compare to others on Santiago Ave?
We track 6 other properties on Santiago Ave. Browse the list under "Other properties on Santiago Ave" to compare beds, baths, and sale history.
What are the property facts for 18 Santiago Ave?
18 Santiago Ave is a 7 bed, 7 bath, 10,800 sqft, 46,801 sqft lot single_family.
Is 18 Santiago Ave a flip candidate?
No — 18 Santiago Ave does not appear in our flips dataset.
Is 18 Santiago Ave a tax-appeal candidate?
No — 18 Santiago Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+9.2%
Implied 1-yr
+36.6%
2026 Q3
$24.52M
2026 Q4
$25.93M
ZIP 94027 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Santiago Ave