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Single Family ResidenceResidential
$905,906$316 / 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 Jul 14, 2026
Last sold for $815,000 on Mar 8, 2021

6403 COSMOS CT

ROCKLIN, CA 95677
3
Beds
2.5
Baths
2,871 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
2003
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$906K
$866K low$946K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$815,000 · Mar 8, 2021
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$575,906
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$460,725
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.36%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$330,000
WELLS FARGO BANK NA · recorded Mar 8, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,147 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$899,821 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$226,334
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$673,487
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$882,179

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.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
69
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
46
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
26
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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.Bungalow
CountyPLACER
Lot (acres)The size of the land the home sits on, from county records.0.23
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
PoolWhether the property has a pool, and what kind, such as in-ground.In-Ground Pool

Transaction History(4)

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
Sierra Elementary SchoolA
Elementary · Grades KG–6 · 0.5 mi
M
Spring View Middle SchoolB-
Middle · Grades 7–8 · 2.2 mi
H
Whitney High SchoolA
High · Grades 9–12 · 6.0 mi

District: Rocklin Unified School District

Neighborhood · ZIP 95677These 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.99
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.87

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.27,336
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,065 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$104,245
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$126,422
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.24 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.Yes

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

6403 Cosmos 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 81% of homes in Rocklin 95677
  • Costs less per square foot than 78% of homes in Rocklin 95677
  • Bigger than 85% of homes in Rocklin 95677
  • Newer than 75% of homes in Rocklin 95677

What homes are worth in Rocklin 95677

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

This home
$379K$1.5M

This home is worth more than 81% of homes in Rocklin 95677.

How it measures up in Rocklin 95677

The dot is this home. The mark in the middle is the typical home in Rocklin 95677.

Estimated value$905,906
CheaperTypical $659,531Pricier

Pricier than 81% of homes nearby

Price per ft²$316
CheaperTypical $351Pricier

Pricier than 22% of homes nearby

Living area2,871 ft²
SmallerTypical 1,937 ft²Bigger

Bigger than 85% of homes nearby

Lot size0.23 ac
SmallerTypical 0.23 acBigger

Bigger than 52% of homes nearby

Year built2003
OlderTypical 1989Newer

Newer than 75% of homes nearby

How 6403 Cosmos Ct ranks against every home in each area.
MeasureThis homeRocklin 95677Placer County
Estimated valuepricier than$905,90681% of homes77% of homes
Price per ft²pricier than$31622% of homes32% of homes
Living areabigger than2,871 ft²85% of homes82% of homes
Lot sizebigger than0.23 ac52% of homes53% of homes
Year builtnewer than200375% of homes67% of homes

About 6403 Cosmos Ct

How much is 6403 Cosmos Ct, Rocklin, CA worth?

The TopHap Estimate for 6403 Cosmos Ct, Rocklin, CA is $905,906 as of Jul 14, 2026. The likely range is $865,528 to $946,284. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6403 Cosmos Ct, Rocklin, CA last sell?

6403 Cosmos Ct, Rocklin, CA last sold on Mar 8, 2021 for $815,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 6403 Cosmos Ct, Rocklin, CA?

6403 Cosmos Ct, Rocklin, CA has 3 bedrooms, 2.5 bathrooms, 2,871 square feet of living space and a 0.23-acre lot.

When was 6403 Cosmos Ct, Rocklin, CA built?

6403 Cosmos Ct, Rocklin, CA was built in 2003, making it 23 years old. It is a bungalow home.

What schools serve 6403 Cosmos Ct, Rocklin, CA?

6403 Cosmos Ct, Rocklin, CA is assigned to Sierra Elementary School (elementary), rated A; Spring View Middle School (middle), rated B-; Whitney High School (high), rated A. All sit in Rocklin Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6403 Cosmos Ct, Rocklin, CA compare to other homes in Rocklin 95677?

Among the 9,056 homes in Rocklin 95677, it is worth more than 81% of them ($905,906 against a typical $659,531), its price per square foot is higher than 22% of them ($316 against a typical $351), it is bigger than 85% of them (2,871 ft² against a typical 1,937 ft²), its lot is bigger than 52% of them (0.23 ac against a typical 0.23 ac) and it is newer than 75% of them (2003 against a typical 1989). Measured against all of Placer County, it is worth more than 77% 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 6403 Cosmos Ct, Rocklin, CA?

The 2025 property tax bill for 6403 Cosmos Ct, Rocklin, CA was $11,147. The county assessed it at $899,821.

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Assigned schools

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