21004 Rocky Knoll Sq
Ashburn, VA 20147
2 bd 2 ba 1,525 sqft Built 2017 condos
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 | $340,990 | $150,000 | $490,990 | $3,952 |
| 2023 | $360,810 | $140,000 | $500,810 | $4,382 |
| 2022 | $293,710 | $130,000 | $423,710 | $3,771 |
| 2021 | $316,130 | $115,000 | $431,130 | $4,225 |
| 2020 | $310,030 | $100,000 | $410,030 | $4,243 |
| 2019 | $313,080 | $95,000 | $408,080 | $4,264 |
Property facts
Year built
2017
Property type
condos
Stories
4
Beds
2
Baths
2
Living area
1,525 sqft
Lot size
—
ZIP code
20147
City
Ashburn
Street
Rocky Knoll Sq
Coordinates
39.03501, -77.45823
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21004 Rocky Knoll Sq last sell?
No public-record sale is on file for 21004 Rocky Knoll Sq.
What is the current tax assessment for 21004 Rocky Knoll Sq?
The most recent total assessment for 21004 Rocky Knoll Sq (year 2025) is $490,990 with $3,952 in property tax.
When was 21004 Rocky Knoll Sq built?
21004 Rocky Knoll Sq was built in 2017.
How does 21004 Rocky Knoll Sq compare to others on Rocky Knoll Sq?
We track 8 other properties on Rocky Knoll Sq. Browse the list under "Other properties on Rocky Knoll Sq" to compare beds, baths, and sale history.
What are the property facts for 21004 Rocky Knoll Sq?
21004 Rocky Knoll Sq is a 2 bed, 2 bath, 1,525 sqft condos.
Is 21004 Rocky Knoll Sq a flip candidate?
No — 21004 Rocky Knoll Sq does not appear in our flips dataset.
Is 21004 Rocky Knoll Sq a tax-appeal candidate?
No — 21004 Rocky Knoll Sq is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+2.2%
Implied 1-yr
+8.8%
2026 Q3
$878.2K
2026 Q4
$895.1K
ZIP 20147 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Rocky Knoll Sq