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Single Family ResidenceResidential
$686,741$306 / 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 Oct 21, 2026
Last sold for $584,851 on Sep 27, 2022

400 KOLLEEN CT

WHITE ROCK, NM 87547
3
Beds
2
Baths
2,244 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.
0.26 ac
Lot SizeThe size of the land the home sits on, from county records.
1972
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$687K
$656K low$717K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$584,851 · Sep 27, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,970 (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.$228,020 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$38,150
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$189,870
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$221,390
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$684,080

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLOS ALAMOS
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2005
Lot (acres)The size of the land the home sits on, from county records.0.26
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.None
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.Porch · 336 ft²

Transaction History(3)

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.

E
Pinon Elementary SchoolA+
Elementary · Grades PK–6 · 0.9 mi
M
Los Alamos Middle SchoolA+
Middle · Grades 7–8 · 7.6 mi
H
Los Alamos High SchoolA+
High · Grades 10–12 · 8.2 mi

District: Los Alamos Public Schools

Neighborhood · ZIP 87547These 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.33
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.116

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.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.1.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.6%
PopulationHow many people live in this area.5,025
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.765 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$142,015
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$162,938
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.16 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.76%

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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

400 Kolleen Ct 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 71% of homes in White Rock 87547

What homes are worth in White Rock 87547

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

This home
$399K$1M

This home is worth more than 71% of homes in White Rock 87547.

How it measures up in White Rock 87547

The dot is this home. The mark in the middle is the typical home in White Rock 87547.

Estimated value$686,741
CheaperTypical $585,056Pricier

Pricier than 71% of homes nearby

Price per ft²$306
CheaperTypical $305Pricier

Pricier than 52% of homes nearby

Living area2,244 ft²
SmallerTypical 1,974 ft²Bigger

Bigger than 64% of homes nearby

Lot size0.26 ac
SmallerTypical 0.26 acBigger

Bigger than 50% of homes nearby

Year built1972
OlderTypical 1973Newer

Newer than 45% of homes nearby

How 400 Kolleen Ct ranks against every home in each area.
MeasureThis homeWhite Rock 87547Los Alamos County
Estimated valuepricier than$686,74171% of homes65% of homes
Price per ft²pricier than$30652% of homes51% of homes
Living areabigger than2,244 ft²64% of homes61% of homes
Lot sizebigger than0.26 ac50% of homes56% of homes
Year builtnewer than197245% of homes49% of homes

About 400 Kolleen Ct

How much is 400 Kolleen Ct, White Rock, NM worth?

The TopHap Estimate for 400 Kolleen Ct, White Rock, NM is $686,741 as of Oct 21, 2026. The likely range is $656,355 to $717,127. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 400 Kolleen Ct, White Rock, NM last sell?

400 Kolleen Ct, White Rock, NM last sold on Sep 27, 2022 for $584,851, according to the county's recorded deed.

How big is 400 Kolleen Ct, White Rock, NM?

400 Kolleen Ct, White Rock, NM has 3 bedrooms, 2 bathrooms, 2,244 square feet of living space and a 0.26-acre lot.

When was 400 Kolleen Ct, White Rock, NM built?

400 Kolleen Ct, White Rock, NM was built in 1972, making it 54 years old. The building has 1 story.

What schools serve 400 Kolleen Ct, White Rock, NM?

400 Kolleen Ct, White Rock, NM is assigned to Pinon Elementary School (elementary), rated A+; Los Alamos Middle School (middle), rated A+; Los Alamos High School (high), rated A+. All sit in Los Alamos Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 400 Kolleen Ct, White Rock, NM compare to other homes in White Rock 87547?

Among the 2,477 homes in White Rock 87547, it is worth more than 71% of them ($686,741 against a typical $585,056), its price per square foot is higher than 52% of them ($306 against a typical $305), it is bigger than 64% of them (2,244 ft² against a typical 1,974 ft²), its lot is bigger than 50% of them (0.26 ac against a typical 0.26 ac) and it is newer than 45% of them (1972 against a typical 1973). Measured against all of Los Alamos County, it is worth more than 65% 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 400 Kolleen Ct, White Rock, NM?

The 2026 property tax bill for 400 Kolleen Ct, White Rock, NM was $4,970. The county assessed it at $228,020.

More homes on Kolleen Ct

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Assigned schools

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