21 Neptune Ct
San Ramon, CA 94583
3 bd 2 ba 1,310 sqft Built 1963 Lot 7,200 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 | $242,623 | $529,869 | $772,492 | $9,136 |
| 2024 | $242,623 | $529,869 | $772,492 | $8,954 |
| 2023 | $233,202 | $509,295 | $742,497 | $8,808 |
| 2022 | $228,630 | $499,309 | $727,939 | $8,743 |
| 2021 | $224,148 | $489,519 | $713,667 | $8,570 |
| 2020 | $221,850 | $484,500 | $706,350 | $8,512 |
| 2019 | $181,760 | $259,663 | $441,423 | $5,674 |
| 2018 | $178,197 | $254,572 | $432,769 | $5,245 |
| 2017 | $174,703 | $249,581 | $424,284 | $5,049 |
| 2016 | $171,278 | $244,688 | $415,966 | $4,978 |
| 2015 | $168,706 | $241,013 | $409,719 | $4,929 |
| 2014 | $165,402 | $236,292 | $401,694 | $4,868 |
| 2013 | $147,616 | $210,884 | $358,500 | $4,361 |
| 2012 | $130,323 | $186,177 | $316,500 | $3,862 |
| 2011 | $139,793 | $199,707 | $339,500 | $4,110 |
| 2010 | $157,080 | $224,403 | $381,483 | $4,526 |
| 2009 | $148,646 | $212,354 | $361,000 | $4,278 |
| 2008 | $154,367 | $220,527 | $374,894 | $4,387 |
| 2007 | $151,341 | $216,203 | $367,544 | $4,323 |
Property facts
Year built
1963
Property type
single_family
Stories
1
Beds
3
Baths
2
Living area
1,310 sqft
Lot size
7,200 sqft
ZIP code
94583
City
San Ramon
Street
Neptune Ct
Coordinates
37.72824, -121.92584
Comparable properties nearby
Frequently asked questions
When did 21 Neptune Ct last sell?
No public-record sale is on file for 21 Neptune Ct.
What is the current tax assessment for 21 Neptune Ct?
The most recent total assessment for 21 Neptune Ct (year 2025) is $772,492 with $9,136 in property tax.
When was 21 Neptune Ct built?
21 Neptune Ct was built in 1963.
How does 21 Neptune Ct compare to others on Neptune Ct?
We do not currently track other properties on Neptune Ct.
What are the property facts for 21 Neptune Ct?
21 Neptune Ct is a 3 bed, 2 bath, 1,310 sqft, 7,200 sqft lot single_family.
Is 21 Neptune Ct a flip candidate?
No — 21 Neptune Ct does not appear in our flips dataset.
Is 21 Neptune Ct a tax-appeal candidate?
No — 21 Neptune Ct is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+0.5%
Implied 1-yr
+1.8%
2026 Q3
$1.3M
2026 Q4
$1.3M
ZIP 94583 — Median Price History + Forecast
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Geography