Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$1,542,833$240 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $930,000 on Jan 8, 2020

18311 SEA ISLAND PL

LEESBURG, VA 20176
4
Beds
4.5
Baths
6,416 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
2004
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$1.5M
$1.5M low$1.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$930,000 · Jan 8, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,973 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,487,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$420,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,066,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,395,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,487,300

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.41
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
79
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
82
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
34
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Colonial
CountyLOUDOUN
Lot (acres)The size of the land the home sits on, from county records.0.34
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.DeckPatio · 865 ft²Porch · 92 ft²

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

M
Harper Park Middle SchoolB
Middle · Grades 6–8 · 1.6 mi
E
Frances Hazel Reid Elementary SchoolC-
Elementary · Grades PK–5 · 3.0 mi
H
Heritage High SchoolB
High · Grades 9–12 · 4.2 mi

District: Loudoun County Public Schools

Neighborhood · ZIP 20176These 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.81
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.75
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.43

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.97%
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.6.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.53,956
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.932 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$151,886
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$183,576
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.43 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

Owner Tools

Do you own this home?
Claim this home

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

How this home compares

18311 Sea Island Pl measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 94% of homes in Leesburg 20176
  • Costs less per square foot than 89% of homes in Loudoun County
  • Bigger than 96% of homes in Loudoun County
  • Has a bigger lot than 78% of homes in Leesburg 20176
  • Newer than 73% of homes in Leesburg 20176

What homes are worth in Leesburg 20176

Each bar is how many homes fall in that price range. The marker is this home.

This home
$320K$1.9M

This home is worth more than 94% of homes in Leesburg 20176.

How it measures up in Leesburg 20176

The dot is this home. The mark in the middle is the typical home in Leesburg 20176.

Estimated value$1,542,833
CheaperTypical $833,312Pricier

Pricier than 94% of homes nearby

Price per ft²$240
CheaperTypical $282Pricier

Pricier than 18% of homes nearby

Living area6,416 ft²
SmallerTypical 2,808 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.34 ac
SmallerTypical 0.19 acBigger

Bigger than 78% of homes nearby

Year built2004
OlderTypical 2001Newer

Newer than 73% of homes nearby

How 18311 Sea Island Pl ranks against every home in each area.
MeasureThis homeLeesburg 20176Loudoun County
Estimated valuepricier than$1,542,83394% of homes94% of homes
Price per ft²pricier than$24018% of homes11% of homes
Living areabigger than6,416 ft²95% of homes96% of homes
Lot sizebigger than0.34 ac78% of homes77% of homes
Year builtnewer than200473% of homes58% of homes

About 18311 Sea Island Pl

How much is 18311 Sea Island Pl, Leesburg, VA worth?

The TopHap Estimate for 18311 Sea Island Pl, Leesburg, VA is $1,542,833 as of Sep 24, 2026. The likely range is $1,479,894 to $1,605,772. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18311 Sea Island Pl, Leesburg, VA last sell?

18311 Sea Island Pl, Leesburg, VA last sold on Jan 8, 2020 for $930,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 18311 Sea Island Pl, Leesburg, VA?

18311 Sea Island Pl, Leesburg, VA has 4 bedrooms, 4.5 bathrooms, 6,416 square feet of living space and a 0.34-acre lot.

When was 18311 Sea Island Pl, Leesburg, VA built?

18311 Sea Island Pl, Leesburg, VA was built in 2004, making it 22 years old. It is a colonial home. The building has 2 stories.

What schools serve 18311 Sea Island Pl, Leesburg, VA?

18311 Sea Island Pl, Leesburg, VA is assigned to Harper Park Middle School (middle), rated B; Frances Hazel Reid Elementary School (elementary), rated C-; Heritage High School (high), rated B. All sit in Loudoun County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18311 Sea Island Pl, Leesburg, VA compare to other homes in Leesburg 20176?

Among the 15,466 homes in Leesburg 20176, it is worth more than 94% of them ($1,542,833 against a typical $833,312), its price per square foot is higher than 18% of them ($240 against a typical $282), it is bigger than 95% of them (6,416 ft² against a typical 2,808 ft²), its lot is bigger than 78% of them (0.34 ac against a typical 0.19 ac) and it is newer than 73% of them (2004 against a typical 2001). Measured against all of Loudoun County, it is worth more than 94% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 18311 Sea Island Pl, Leesburg, VA?

The 2026 property tax bill for 18311 Sea Island Pl, Leesburg, VA was $11,973. The county assessed it at $1,487,300.

More homes on Sea Island Pl

Closest homes

More homes in Leesburg 20176

Assigned schools

Explore the area

See this home in context

Open 18311 Sea Island Pl on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map