21906 Knob Pl
Ashburn, VA 20148
4 bd 5 ba 2,884 sqft Built 2011 Lot 9,148 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 | $714,760 | $324,600 | $1,039,360 | $8,366 |
| 2023 | $564,700 | $309,600 | $874,300 | $7,650 |
| 2022 | $568,170 | $269,600 | $837,770 | $7,456 |
| 2021 | $487,200 | $259,600 | $746,800 | $7,318 |
| 2020 | $481,590 | $199,600 | $681,190 | $7,050 |
| 2019 | $463,280 | $199,600 | $662,880 | $6,927 |
| 2018 | $442,200 | $189,600 | $631,800 | $6,855 |
| 2017 | $419,840 | $189,600 | $609,440 | $6,856 |
| 2016 | $410,340 | $189,600 | $599,940 | $6,869 |
| 2015 | $424,270 | $189,600 | $613,870 | $6,967 |
| 2014 | $403,310 | $179,600 | $582,910 | $6,732 |
| 2013 | $377,660 | $179,600 | $557,260 | $6,714 |
| 2012 | $350,600 | $179,600 | $530,200 | $6,547 |
| 2011 | — | $159,600 | $159,600 | $2,050 |
| 2009 | — | $80,000 | $80,000 | $1,120 |
| 2008 | — | $164,500 | $164,500 | $1,875 |
Property facts
Year built
2011
Property type
single_family
Stories
—
Beds
4
Baths
5
Living area
2,884 sqft
Lot size
9,148 sqft
ZIP code
20148
City
Ashburn
Street
Knob Pl
Coordinates
39.01067, -77.55767
Comparable properties nearby
Frequently asked questions
When did 21906 Knob Pl last sell?
No public-record sale is on file for 21906 Knob Pl.
What is the current tax assessment for 21906 Knob Pl?
The most recent total assessment for 21906 Knob Pl (year 2025) is $1,039,360 with $8,366 in property tax.
When was 21906 Knob Pl built?
21906 Knob Pl was built in 2011.
How does 21906 Knob Pl compare to others on Knob Pl?
We do not currently track other properties on Knob Pl.
What are the property facts for 21906 Knob Pl?
21906 Knob Pl is a 4 bed, 5 bath, 2,884 sqft, 9,148 sqft lot single_family.
Is 21906 Knob Pl a flip candidate?
No — 21906 Knob Pl does not appear in our flips dataset.
Is 21906 Knob Pl a tax-appeal candidate?
No — 21906 Knob Pl is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+1.0%
Implied 1-yr
+4.0%
2026 Q3
$1.01M
2026 Q4
$1.01M
ZIP 20148 — Median Price History + Forecast
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Geography