821 Mosby Hollow Dr
Herndon, VA 20170
4 bd 3 ba 1,952 sqft Built 1977 Lot 10,204 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 | $344,020 | $250,000 | $594,020 | $8,470 |
| 2024 | $344,020 | $250,000 | $594,020 | $8,223 |
| 2023 | $326,670 | $250,000 | $576,670 | $8,007 |
| 2022 | $311,110 | $235,000 | $546,110 | $7,691 |
| 2021 | $285,420 | $195,000 | $480,420 | $5,637 |
| 2020 | $237,850 | $187,000 | $424,850 | $5,028 |
| 2019 | $245,210 | $187,000 | $432,210 | $5,115 |
| 2018 | $227,050 | $180,000 | $407,050 | $4,681 |
| 2017 | $220,440 | $175,000 | $395,440 | $4,591 |
| 2016 | $216,120 | $170,000 | $386,120 | $4,473 |
| 2015 | $211,880 | $165,000 | $376,880 | $4,205 |
| 2014 | $215,660 | $165,000 | $380,660 | $4,238 |
| 2013 | $196,010 | $145,000 | $341,010 | $3,771 |
| 2012 | $181,150 | $123,000 | $304,150 | $3,333 |
| 2011 | $182,190 | $119,000 | $301,190 | $3,270 |
| 2009 | $172,130 | $117,000 | $289,130 | $3,009 |
| 2008 | $265,940 | $163,000 | $428,940 | $3,950 |
| 2007 | $316,770 | $160,000 | $476,770 | $4,248 |
Property facts
Year built
1977
Property type
single_family
Stories
2
Beds
4
Baths
3
Living area
1,952 sqft
Lot size
10,204 sqft
ZIP code
20170
City
Herndon
Street
Mosby Hollow Dr
Coordinates
38.97291, -77.39961
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 821 Mosby Hollow Dr last sell?
No public-record sale is on file for 821 Mosby Hollow Dr.
What is the current tax assessment for 821 Mosby Hollow Dr?
The most recent total assessment for 821 Mosby Hollow Dr (year 2025) is $594,020 with $8,470 in property tax.
When was 821 Mosby Hollow Dr built?
821 Mosby Hollow Dr was built in 1977.
How does 821 Mosby Hollow Dr compare to others on Mosby Hollow Dr?
We track 4 other properties on Mosby Hollow Dr. Browse the list under "Other properties on Mosby Hollow Dr" to compare beds, baths, and sale history.
What are the property facts for 821 Mosby Hollow Dr?
821 Mosby Hollow Dr is a 4 bed, 3 bath, 1,952 sqft, 10,204 sqft lot single_family.
Is 821 Mosby Hollow Dr a flip candidate?
No — 821 Mosby Hollow Dr does not appear in our flips dataset.
Is 821 Mosby Hollow Dr a tax-appeal candidate?
No — 821 Mosby Hollow Dr 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 Mosby Hollow Dr