639 Oak St
Herndon, VA 20170
3 bd 3 ba 1,869 sqft Built 1995 Lot 11,857 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 | $517,430 | $321,000 | $838,430 | $11,956 |
| 2024 | $517,430 | $321,000 | $838,430 | $11,749 |
| 2023 | $461,160 | $321,000 | $782,160 | $10,860 |
| 2022 | $452,120 | $296,000 | $748,120 | $10,537 |
| 2021 | $426,530 | $271,000 | $697,530 | $8,185 |
| 2020 | $402,390 | $263,000 | $665,390 | $7,874 |
| 2019 | $394,500 | $260,000 | $654,500 | $7,746 |
| 2018 | $372,570 | $260,000 | $632,570 | $7,274 |
| 2017 | $382,060 | $260,000 | $642,060 | $7,454 |
| 2016 | $382,060 | $260,000 | $642,060 | $7,438 |
| 2015 | $354,290 | $260,000 | $614,290 | $6,855 |
| 2014 | $318,460 | $241,000 | $559,460 | $6,229 |
| 2013 | $309,180 | $221,000 | $530,180 | $5,863 |
| 2012 | $255,280 | $173,000 | $428,280 | $4,693 |
| 2011 | $283,640 | $192,000 | $475,640 | $5,165 |
| 2009 | $287,420 | $221,000 | $508,420 | $5,292 |
| 2008 | $305,800 | $257,000 | $562,800 | $5,183 |
| 2007 | $439,350 | $175,000 | $614,350 | $5,473 |
Property facts
Year built
1995
Property type
single_family
Stories
1
Beds
3
Baths
3
Living area
1,869 sqft
Lot size
11,857 sqft
ZIP code
20170
City
Herndon
Street
Oak St
Coordinates
38.96810, -77.38522
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 639 Oak St last sell?
No public-record sale is on file for 639 Oak St.
What is the current tax assessment for 639 Oak St?
The most recent total assessment for 639 Oak St (year 2025) is $838,430 with $11,956 in property tax.
When was 639 Oak St built?
639 Oak St was built in 1995.
How does 639 Oak St compare to others on Oak St?
We track 3 other properties on Oak St. Browse the list under "Other properties on Oak St" to compare beds, baths, and sale history.
What are the property facts for 639 Oak St?
639 Oak St is a 3 bed, 3 bath, 1,869 sqft, 11,857 sqft lot single_family.
Is 639 Oak St a flip candidate?
No — 639 Oak St does not appear in our flips dataset.
Is 639 Oak St a tax-appeal candidate?
No — 639 Oak St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-1.5%
Implied 1-yr
-5.8%
2026 Q3
$639.8K
2026 Q4
$629.5K
ZIP 20170 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Oak St