18 Cowell Ln
Atherton, CA 94027
5 bd 8 ba 6,854 sqft Built 1979 Lot 46,836 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 | $553,465 | $11,028,240 | $11,581,705 | $129,419 |
| 2024 | $553,465 | $11,028,240 | $11,581,705 | $122,198 |
| 2023 | $3,127,817 | $2,109,584 | $5,237,401 | $59,602 |
| 2022 | $3,066,488 | $2,068,220 | $5,134,708 | $56,694 |
| 2021 | $3,006,362 | $2,027,667 | $5,034,029 | $55,883 |
| 2020 | $2,975,536 | $2,006,876 | $4,982,412 | $55,460 |
| 2019 | $2,917,193 | $1,967,526 | $4,884,719 | $54,803 |
| 2018 | $2,859,995 | $1,928,948 | $4,788,943 | $53,495 |
| 2017 | $2,803,918 | $1,891,126 | $4,695,044 | $53,558 |
| 2016 | $2,748,941 | $1,854,046 | $4,602,987 | $53,315 |
| 2015 | $2,707,650 | $1,826,197 | $4,533,847 | $52,854 |
| 2014 | $2,654,612 | $1,790,425 | $4,445,037 | $51,876 |
| 2013 | $2,642,616 | $1,782,334 | $4,424,950 | $50,613 |
| 2012 | $2,590,801 | $1,747,387 | $4,338,188 | $49,859 |
| 2011 | $2,540,002 | $1,713,125 | $4,253,127 | $48,926 |
| 2010 | $2,521,020 | $1,700,322 | $4,221,342 | $48,280 |
| 2009 | $2,527,010 | $1,704,362 | $4,231,372 | $47,803 |
| 2008 | $2,477,462 | $1,670,944 | $4,148,406 | $46,726 |
| 2007 | $2,428,885 | $1,638,181 | $4,067,066 | $45,457 |
Property facts
Year built
1979
Property type
single_family
Stories
2
Beds
5
Baths
8
Living area
6,854 sqft
Lot size
46,836 sqft
ZIP code
94027
City
Atherton
Street
Cowell Ln
Coordinates
37.44171, -122.20722
Comparable properties nearby
Frequently asked questions
When did 18 Cowell Ln last sell?
No public-record sale is on file for 18 Cowell Ln.
What is the current tax assessment for 18 Cowell Ln?
The most recent total assessment for 18 Cowell Ln (year 2025) is $11,581,705 with $129,419 in property tax.
When was 18 Cowell Ln built?
18 Cowell Ln was built in 1979.
How does 18 Cowell Ln compare to others on Cowell Ln?
We track 2 other properties on Cowell Ln. Browse the list under "Other properties on Cowell Ln" to compare beds, baths, and sale history.
What are the property facts for 18 Cowell Ln?
18 Cowell Ln is a 5 bed, 8 bath, 6,854 sqft, 46,836 sqft lot single_family.
Is 18 Cowell Ln a flip candidate?
No — 18 Cowell Ln does not appear in our flips dataset.
Is 18 Cowell Ln a tax-appeal candidate?
No — 18 Cowell Ln 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 Cowell Ln