639 Northern Ave
Mill Valley, CA 94941
3 bd 2 ba 1,508 sqft Built 1953 Lot 10,034 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 | $328,089 | $874,904 | $1,202,993 | $19,168 |
| 2024 | $328,089 | $874,904 | $1,202,993 | $18,449 |
| 2023 | $315,351 | $840,936 | $1,156,287 | $18,317 |
| 2022 | $309,168 | $824,448 | $1,133,616 | $18,440 |
| 2021 | $303,108 | $808,288 | $1,111,396 | $17,600 |
| 2020 | $70,598 | $47,058 | $117,656 | $5,845 |
| 2019 | $69,214 | $46,136 | $115,350 | $4,480 |
| 2018 | $67,857 | $45,231 | $113,088 | $3,415 |
| 2017 | $66,527 | $44,344 | $110,871 | $3,054 |
| 2016 | $65,223 | $43,475 | $108,698 | $3,151 |
| 2015 | $64,243 | $42,822 | $107,065 | $2,910 |
| 2014 | $62,985 | $41,983 | $104,968 | $2,767 |
| 2013 | $62,701 | $41,794 | $104,495 | $2,733 |
| 2012 | $61,471 | $40,974 | $102,445 | $2,654 |
| 2010 | $60,266 | $40,171 | $100,437 | $2,662 |
| 2009 | $59,816 | $39,871 | $99,687 | $2,294 |
| 2008 | $58,783 | $39,182 | $97,965 | $2,258 |
| 2006 | $57,630 | $38,414 | $96,044 | $1,948 |
Property facts
Year built
1953
Property type
single_family
Stories
—
Beds
3
Baths
2
Living area
1,508 sqft
Lot size
10,034 sqft
ZIP code
94941
City
Mill Valley
Street
Northern Ave
Coordinates
37.87986, -122.54533
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 639 Northern Ave last sell?
No public-record sale is on file for 639 Northern Ave.
What is the current tax assessment for 639 Northern Ave?
The most recent total assessment for 639 Northern Ave (year 2025) is $1,202,993 with $19,168 in property tax.
When was 639 Northern Ave built?
639 Northern Ave was built in 1953.
How does 639 Northern Ave compare to others on Northern Ave?
We track 8 other properties on Northern Ave. Browse the list under "Other properties on Northern Ave" to compare beds, baths, and sale history.
What are the property facts for 639 Northern Ave?
639 Northern Ave is a 3 bed, 2 bath, 1,508 sqft, 10,034 sqft lot single_family.
Is 639 Northern Ave a flip candidate?
No — 639 Northern Ave does not appear in our flips dataset.
Is 639 Northern Ave a tax-appeal candidate?
No — 639 Northern 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
-2.0%
Implied 1-yr
-7.9%
2026 Q2
$1.91M
2026 Q3
$1.87M
ZIP 94941 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Northern Ave