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CondominiumResidential

11721 Karbon Hill Ct

RESTON, VA 20191
1980
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 19806 units1,053–1,234 ft²
$2.2M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$373K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$316
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-18.0%vs the Reston ZIP median sale $/ft² ($386)

Sales Performance

$357K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
2
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
33.3%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+4.9%per yeartypical hold 4.2 yrsfrom 5 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20042006200820092018201920242026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20042006200820092018201920242026

13 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

2 bed
6 units
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
2 bd · 2 ba · 1,053 ft²
3 units
2 bd · 2 ba · 1,234 ft²
2 units
One-off layouts
1 unit

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$340K–$340K
1 unit
$358K–$358K
1 unit
$366K–$366K
1 unit
$379K–$382K
3 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.83%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.0%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.4.6 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.0%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.60%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$369,119
Median tax billThe middle annual property tax bill among the building's units.$4,024
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit 201Jul 14, 2026$339,000Unit T2Feb 25, 2026$375,000Unit 102Apr 19, 2024$355,000Unit 102Feb 10, 2020$270,000Unit T1Dec 6, 2019$250,000Unit T1Feb 28, 2018$229,900Unit T2Jan 9, 2018$245,000Unit T1Apr 20, 2017$205,119Unit 202Jan 5, 2009$200,000Unit 101May 19, 2008$259,900

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
CountyFairfax
ConstructionThe main material the home's frame and walls are built from.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.BalconyPatio · 72 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Terraset Elementary SchoolB+
Elementary · Grades PK–6 · 0.5 mi
H
South Lakes High SchoolC
High · Grades 9–12 · 0.7 mi
M
Hughes Middle SchoolA-
Middle · Grades 7–8 · 0.7 mi

District: Fairfax County Public Schools

Neighborhood · ZIP 20191These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.30,650
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,674 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,723
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$166,233
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

11721 Karbon Hill Ct Apt T1
2 bd · 2 ba · 1,053 ft²
$366K
11721 Karbon Hill Ct Apt T2
2 bd · 2 ba · 1,222 ft²
$379K
11721 Karbon Hill Ct Apt 101
2 bd · 2 ba · 1,053 ft²
$358K
11721 Karbon Hill Ct Apt 102
2 bd · 2 ba · 1,234 ft²
$381K
11721 Karbon Hill Ct # 201
2 bd · 2 ba · 1,053 ft²
$340K
11721 Karbon Hill Ct Apt 202
2 bd · 2 ba · 1,234 ft²
$382K

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

About 11721 Karbon Hill Ct

How many units are in 11721 Karbon Hill Ct, Reston, VA?

11721 Karbon Hill Ct, Reston, VA has 6 residential units across built in 1980, according to county assessor records.

What is a unit at 11721 Karbon Hill Ct, Reston, VA worth?

The median TopHap Estimate across the 6 units at 11721 Karbon Hill Ct, Reston, VA is $372,527. That works out to $316 per square foot. Units run from 1,053 to 1,234 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 11721 Karbon Hill Ct, Reston, VA expensive for Reston?

Units at 11721 Karbon Hill Ct, Reston, VA carry a median of $316 per square foot, 18% below the Reston median of $386 per square foot.

How often do units sell at 11721 Karbon Hill Ct, Reston, VA?

2 units at 11721 Karbon Hill Ct, Reston, VA sold in the last 12 months, out of 13 recorded arms-length sales all time. That is a turnover rate of 33.3% of the building per year. The median sale over that period was $357K.

Have units at 11721 Karbon Hill Ct, Reston, VA appreciated?

Across 5 repeat sales of the same unit, 11721 Karbon Hill Ct, Reston, VA returned a median 4.9% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 4.2 years.

What floor plans does 11721 Karbon Hill Ct, Reston, VA have?

The most common plan at 11721 Karbon Hill Ct, Reston, VA is a 2-bedroom of 1,053 square feet, repeated 3 times, with a median estimate of $357,977. TopHap identifies 2 recurring plans in the building.

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