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Single Family ResidenceResidential
$456,162$537 / 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 97How 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 $395,000 on Jul 23, 2020

10505 DOWNING ST

NORTHGLENN, CO 80233
4
Beds
2
Baths
850 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1964
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

$456K
$441K low$471K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$395,000 · Jul 23, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,683 (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.$28,750 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,750
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$23,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$32,290
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$460,000

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
CountyAdams
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.0.17
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
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, Detached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 200 ft²

Transaction History(2)

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
Leroy Drive Elementary SchoolC
Elementary · Grades KG–5 · 0.3 mi
M
Northglenn Middle SchoolC
Middle · Grades 6–8 · 0.7 mi
H
Thornton High SchoolD-
High · Grades 9–12 · 1.4 mi

District: Northglenn-Thornton School District 12

Neighborhood · ZIP 80233These 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.94
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 100.41

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.7%
PopulationHow many people live in this area.51,691
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5,551 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,509
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$100,105
Average tempThe average temperature here across a full year.51°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

10505 Downing 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.

  • Costs more per square foot than 98% of homes in Denver 80233
  • Smaller than 94% of homes in Adams County
  • Older than 79% of homes in Adams County

What homes are worth in Denver 80233

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

This home
$308K$639K

This home is worth more than 52% of homes in Denver 80233.

How it measures up in Denver 80233

The dot is this home. The mark in the middle is the typical home in Denver 80233.

Estimated value$456,162
CheaperTypical $452,363Pricier

Pricier than 52% of homes nearby

Price per ft²$537
CheaperTypical $294Pricier

Pricier than 98% of homes nearby

Living area850 ft²
SmallerTypical 1,480 ft²Bigger

Bigger than 9% of homes nearby

Lot size0.17 ac
SmallerTypical 0.17 acBigger

Bigger than 42% of homes nearby

Year built1964
OlderTypical 1977Newer

Newer than 27% of homes nearby

How 10505 Downing St ranks against every home in each area.
MeasureThis homeDenver 80233Adams County
Estimated valuepricier than$456,16252% of homes44% of homes
Price per ft²pricier than$53798% of homes98% of homes
Living areabigger than850 ft²9% of homes6% of homes
Lot sizebigger than0.17 ac42% of homes52% of homes
Year builtnewer than196427% of homes21% of homes

About 10505 Downing St

How much is 10505 Downing St, Northglenn, CO worth?

The TopHap Estimate for 10505 Downing St, Northglenn, CO is $456,162 as of Sep 24, 2026. The likely range is $441,147 to $471,177. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10505 Downing St, Northglenn, CO last sell?

10505 Downing St, Northglenn, CO last sold on Jul 23, 2020 for $395,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 10505 Downing St, Northglenn, CO?

10505 Downing St, Northglenn, CO has 4 bedrooms, 2 bathrooms, 850 square feet of living space and a 0.17-acre lot.

When was 10505 Downing St, Northglenn, CO built?

10505 Downing St, Northglenn, CO was built in 1964, making it 62 years old. It is a ranch home. The building has 1 story.

What schools serve 10505 Downing St, Northglenn, CO?

10505 Downing St, Northglenn, CO is assigned to Leroy Drive Elementary School (elementary), rated C; Northglenn Middle School (middle), rated C; Thornton High School (high), rated D-. All sit in Northglenn-Thornton School District 12. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 10505 Downing St, Northglenn, CO compare to other homes in Denver 80233?

Among the 13,052 homes in Denver 80233, it is worth more than 52% of them ($456,162 against a typical $452,363), its price per square foot is higher than 98% of them ($537 against a typical $294), it is bigger than 9% of them (850 ft² against a typical 1,480 ft²), its lot is bigger than 42% of them (0.17 ac against a typical 0.17 ac) and it is newer than 27% of them (1964 against a typical 1977). Measured against all of Adams County, it is worth more than 44% 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 10505 Downing St, Northglenn, CO?

The 2025 property tax bill for 10505 Downing St, Northglenn, CO was $1,683. The county assessed it at $28,750.

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