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Single Family ResidenceResidential
$842,330$335 / 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 95How 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 $627,500 on May 3, 2021

3803 COSMOS LN

FORT COLLINS, CO 80528
4
Beds
4
Baths
2,513 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
2011
Year BuiltThe year the home was originally built, according to county records.
2
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

$842K
$799K low$885K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$627,500 · May 3, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,874 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$53,560 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,395
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$41,165
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$53,560
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$799,400

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLarimer
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.2019
Lot (acres)The size of the land the home sits on, from county records.0.15
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
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.Porch · 894 ft²

Transaction History(6)

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
Zach Elementary SchoolA+
Elementary · Grades KG–5 · 0.1 mi
H
Fossil Ridge High SchoolD-
High · Grades 9–12 · 0.6 mi
M
Preston Middle SchoolA
Middle · Grades 6–8 · 1.2 mi

District: Poudre School District R-1

Neighborhood · ZIP 80528These 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.39
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
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.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.28,377
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,297 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$137,932
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$167,785
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.14 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.69%

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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

3803 Cosmos Ln 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 92% of homes in Observatory Village
  • Costs more per square foot than 68% of homes in Fort Collins 80528
  • Bigger than 82% of homes in Larimer County
  • Has a bigger lot than 78% of homes in Observatory Village
  • Newer than 87% of homes in Observatory Village

What homes are worth in Fort Collins 80528

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

This home
$335K$1.8M

This home is worth more than 72% of homes in Fort Collins 80528.

How it measures up in Fort Collins 80528

The dot is this home. The mark in the middle is the typical home in Fort Collins 80528.

Estimated value$842,330
CheaperTypical $679,031Pricier

Pricier than 72% of homes nearby

Price per ft²$335
CheaperTypical $312Pricier

Pricier than 68% of homes nearby

Living area2,513 ft²
SmallerTypical 2,164 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.15 ac
SmallerTypical 0.17 acBigger

Bigger than 41% of homes nearby

Year built2011
OlderTypical 2003Newer

Newer than 77% of homes nearby

How 3803 Cosmos Ln ranks against every home in each area.
MeasureThis homeObservatory VillageFort Collins 80528Larimer County
Estimated valuepricier than$842,33092% of homes72% of homes85% of homes
Price per ft²pricier than$33560% of homes68% of homes51% of homes
Living areabigger than2,513 ft²69% of homes63% of homes82% of homes
Lot sizebigger than0.15 ac78% of homes41% of homes28% of homes
Year builtnewer than201187% of homes77% of homes81% of homes

About 3803 Cosmos Ln

How much is 3803 Cosmos Ln, Fort Collins, CO worth?

The TopHap Estimate for 3803 Cosmos Ln, Fort Collins, CO is $842,330 as of Sep 24, 2026. The likely range is $799,335 to $885,325. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3803 Cosmos Ln, Fort Collins, CO last sell?

3803 Cosmos Ln, Fort Collins, CO last sold on May 3, 2021 for $627,500, according to the county's recorded deed. TopHap holds 5 recorded sales for this parcel.

How big is 3803 Cosmos Ln, Fort Collins, CO?

3803 Cosmos Ln, Fort Collins, CO has 4 bedrooms, 4 bathrooms, 2,513 square feet of living space and a 0.15-acre lot.

When was 3803 Cosmos Ln, Fort Collins, CO built?

3803 Cosmos Ln, Fort Collins, CO was built in 2011, making it 15 years old. The building has 2 stories.

What schools serve 3803 Cosmos Ln, Fort Collins, CO?

3803 Cosmos Ln, Fort Collins, CO is assigned to Zach Elementary School (elementary), rated A+; Fossil Ridge High School (high), rated D-; Preston Middle School (middle), rated A. All sit in Poudre School District R-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3803 Cosmos Ln, Fort Collins, CO compare to other homes in Fort Collins 80528?

Among the 7,746 homes in Fort Collins 80528, it is worth more than 72% of them ($842,330 against a typical $679,031), its price per square foot is higher than 68% of them ($335 against a typical $312), it is bigger than 63% of them (2,513 ft² against a typical 2,164 ft²), its lot is bigger than 41% of them (0.15 ac against a typical 0.17 ac) and it is newer than 77% of them (2011 against a typical 2003). Measured against all of Larimer County, it is worth more than 85% 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 3803 Cosmos Ln, Fort Collins, CO?

The 2024 property tax bill for 3803 Cosmos Ln, Fort Collins, CO was $4,874. The county assessed it at $53,560.

More homes on Cosmos Ln

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