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Single Family ResidenceResidential
$490,614$834 / 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 93How 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

131 N MACK ST

FORT COLLINS, CO 80521
1
Beds
1
Baths
588 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
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

$491K
$454K low$527K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,758 (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.$28,710 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,030
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$22,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$28,710
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$428,500

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Ranch
CountyLarimer
Lot (acres)The size of the land the home sits on, from county records.0.20
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.Stone (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Floor/Wall Furnace
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 879 ft²

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

E
Putnam Elementary School of ScienceC
Elementary · Grades PK–5 · 0.5 mi
M
Lincoln Middle IB World SchoolC+
Middle · Grades 6–8 · 1.0 mi
H
Poudre High SchoolC
High · Grades 9–12 · 1.4 mi

District: Poudre School District R-1

Neighborhood · ZIP 80521These 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.124
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.50

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.28%
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.37,077
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,576 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,880
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$84,296
Average tempThe average temperature here across a full year.48°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.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

131 N Mack St 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 less than 77% of homes in Old Town West
  • Among the highest price per square foot in Larimer County
  • Among the smallest homes in Old Town West
  • Among the oldest homes in Fort Collins 80521

What homes are worth in Fort Collins 80521

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

This home
$250K$1.3M

This home is worth more than 40% of homes in Fort Collins 80521.

How it measures up in Fort Collins 80521

The dot is this home. The mark in the middle is the typical home in Fort Collins 80521.

Estimated value$490,614
CheaperTypical $520,557Pricier

Pricier than 40% of homes nearby

Price per ft²$834
CheaperTypical $390Pricier

Pricier than 98% of homes nearby

Living area588 ft²
SmallerTypical 1,333 ft²Bigger

Smaller than almost all homes nearby

Lot size0.2 ac
SmallerTypical 0.19 acBigger

Bigger than 59% of homes nearby

Year built1890
OlderTypical 1967Newer

Older than almost all homes nearby

How 131 N Mack St ranks against every home in each area.
MeasureThis homeOld Town WestFort Collins 80521Larimer County
Estimated valuepricier than$490,61423% of homes40% of homes34% of homes
Price per ft²pricier than$83495% of homes98% of homesalmost all homes
Living areabigger than588 ft²almost no homesalmost no homes2% of homes
Lot sizebigger than0.2 ac58% of homes59% of homes53% of homes
Year builtnewer than18902% of homesalmost no homesalmost no homes

About 131 N Mack St

How much is 131 N Mack St, Fort Collins, CO worth?

The TopHap Estimate for 131 N Mack St, Fort Collins, CO is $490,614 as of Sep 24, 2026. The likely range is $454,403 to $526,825. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 131 N Mack St, Fort Collins, CO last sell?

131 N Mack St, Fort Collins, CO last sold on Jan 29, 1979, according to the county's recorded deed.

How big is 131 N Mack St, Fort Collins, CO?

131 N Mack St, Fort Collins, CO has 1 bedrooms, 1 bathrooms, 588 square feet of living space and a 0.20-acre lot.

When was 131 N Mack St, Fort Collins, CO built?

131 N Mack St, Fort Collins, CO was built in 1890, making it 136 years old. It is a ranch home. The building has 1 story.

What schools serve 131 N Mack St, Fort Collins, CO?

131 N Mack St, Fort Collins, CO is assigned to Putnam Elementary School of Science (elementary), rated C; Lincoln Middle IB World School (middle), rated C+; Poudre High School (high), rated C. All sit in Poudre School District R-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 131 N Mack St, Fort Collins, CO compare to other homes in Fort Collins 80521?

Among the 9,054 homes in Fort Collins 80521, it is worth more than 40% of them ($490,614 against a typical $520,557), its price per square foot is higher than 98% of them ($834 against a typical $390), it is bigger than almost none of them (588 ft² against a typical 1,333 ft²), its lot is bigger than 59% of them (0.2 ac against a typical 0.19 ac) and it is newer than almost none of them (1890 against a typical 1967). Measured against all of Larimer County, it is worth more than 34% 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 131 N Mack St, Fort Collins, CO?

The 2024 property tax bill for 131 N Mack St, Fort Collins, CO was $1,758. The county assessed it at $28,710.

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