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Single Family ResidenceResidential
$718,438$627 / 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 91How 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 $28,900 on Jun 1, 1977

107 N MACK ST

FORT COLLINS, CO 80521
2
Beds
1
Baths
1,146 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1949
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$718K
$654K low$783K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$28,900 · Jun 1, 1977

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,809 (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.$43,383 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,005
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$42,378
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$43,383
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$647,500

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.9 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
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.1997
Lot (acres)The size of the land the home sits on, from county records.0.10
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.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 · 468 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

107 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 more than 80% of homes in Fort Collins 80521
  • Costs more per square foot than 97% of homes in Larimer County
  • Smaller than 82% of homes in Larimer County
  • Has a smaller lot than 92% of homes in Old Town West
  • Older than 93% of homes in Larimer County

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
$254K$1.4M

This home is worth more than 80% 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$718,438
CheaperTypical $523,120Pricier

Pricier than 80% of homes nearby

Price per ft²$627
CheaperTypical $390Pricier

Pricier than 91% of homes nearby

Living area1,146 ft²
SmallerTypical 1,339 ft²Bigger

Bigger than 35% of homes nearby

Lot size0.1 ac
SmallerTypical 0.19 acBigger

Bigger than 8% of homes nearby

Year built1949
OlderTypical 1967Newer

Newer than 23% of homes nearby

How 107 N Mack St ranks against every home in each area.
MeasureThis homeOld Town WestFort Collins 80521Larimer County
Estimated valuepricier than$718,43851% of homes80% of homes75% of homes
Price per ft²pricier than$62765% of homes91% of homes97% of homes
Living areabigger than1,146 ft²47% of homes35% of homes18% of homes
Lot sizebigger than0.1 ac8% of homes8% of homes12% of homes
Year builtnewer than194964% of homes23% of homes7% of homes

About 107 N Mack St

How much is 107 N Mack St, Fort Collins, CO worth?

The TopHap Estimate for 107 N Mack St, Fort Collins, CO is $718,438 as of Oct 21, 2026. The likely range is $653,530 to $783,346. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 107 N Mack St, Fort Collins, CO last sell?

107 N Mack St, Fort Collins, CO last sold on Jun 1, 1977 for $28,900, according to the county's recorded deed.

How big is 107 N Mack St, Fort Collins, CO?

107 N Mack St, Fort Collins, CO has 2 bedrooms, 1 bathrooms, 1,146 square feet of living space and a 0.10-acre lot.

When was 107 N Mack St, Fort Collins, CO built?

107 N Mack St, Fort Collins, CO was built in 1949, making it 77 years old. It is a ranch home. The building has 1 story.

What schools serve 107 N Mack St, Fort Collins, CO?

107 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 107 N Mack St, Fort Collins, CO compare to other homes in Fort Collins 80521?

Among the 9,046 homes in Fort Collins 80521, it is worth more than 80% of them ($718,438 against a typical $523,120), its price per square foot is higher than 91% of them ($627 against a typical $390), it is bigger than 35% of them (1,146 ft² against a typical 1,339 ft²), its lot is bigger than 8% of them (0.1 ac against a typical 0.19 ac) and it is newer than 23% of them (1949 against a typical 1967). Measured against all of Larimer County, it is worth more than 75% 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 107 N Mack St, Fort Collins, CO?

The 2024 property tax bill for 107 N Mack St, Fort Collins, CO was $3,809. The county assessed it at $43,383.

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