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Vacant LandVacant Land
Last sold for $85,000 on Jun 12, 2025

507 RIVERSIDE DR

LYONS, CO 80540
1
Beds
1.5
Baths
570 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1929
Year BuiltThe year the home was originally built, according to county records.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$85,000 · Jun 12, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$47 (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.$902 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$902
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$937
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$3,470

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.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Vacant Land
StyleThe architectural style of the home, such as ranch or colonial.A-Frame
CountyBOULDER
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.1960
Lot (acres)The size of the land the home sits on, from county records.0.11
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.Asphalt
HeatingThe type of heating system in the home.Floor/Wall Furnace
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 · 90 ft²

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.

M
Lyons Middle / Senior High SchoolA-
Middle · Grades 6–12 · 9.5 mi
E
Lyons Elementary SchoolA-
Elementary · Grades PK–5 · 9.5 mi

District: St. Vrain Valley School District Re 1j

Neighborhood · ZIP 80540These 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.157
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.54

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.72%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.35%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.3,726
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.23 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,918
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$148,576
Average tempThe average temperature here across a full year.41°F
Annual precipHow much rain and melted snow falls here in a typical year.22 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

507 Riverside Dr 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.

  • Smaller than 98% of homes in Boulder County
  • Has a smaller lot than 98% of homes in Lyons 80540
  • Older than 95% of homes in Boulder County

How it measures up in Lyons 80540

The dot is this home. The mark in the middle is the typical home in Lyons 80540.

Living area570 ft²
SmallerTypical 1,708 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.11 ac
SmallerTypical 0.73 acBigger

Bigger than 2% of homes nearby

Year built1929
OlderTypical 1978Newer

Newer than 9% of homes nearby

How 507 Riverside Dr ranks against every home in each area.
MeasureThis homeAllenspark VicinityLyons 80540Boulder County
Living areabigger than570 ft²11% of homes3% of homes2% of homes
Lot sizebigger than0.11 ac3% of homes2% of homes20% of homes
Year builtnewer than192915% of homes9% of homes5% of homes

About 507 Riverside Dr

When did 507 Riverside Dr, Lyons, CO last sell?

507 Riverside Dr, Lyons, CO last sold on Jun 12, 2025 for $85,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 507 Riverside Dr, Lyons, CO?

507 Riverside Dr, Lyons, CO has 1 bedrooms, 1.5 bathrooms, 570 square feet of living space and a 0.11-acre lot.

When was 507 Riverside Dr, Lyons, CO built?

507 Riverside Dr, Lyons, CO was built in 1929, making it 97 years old. It is a a-frame home.

What schools serve 507 Riverside Dr, Lyons, CO?

507 Riverside Dr, Lyons, CO is assigned to Lyons Middle / Senior High School (middle), rated A-; Lyons Elementary School (elementary), rated A-. All sit in St. Vrain Valley School District Re 1j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 507 Riverside Dr, Lyons, CO compare to other homes in Lyons 80540?

Among the 2,475 homes in Lyons 80540, it is bigger than 3% of them (570 ft² against a typical 1,708 ft²), its lot is bigger than 2% of them (0.11 ac against a typical 0.73 ac) and it is newer than 9% of them (1929 against a typical 1978). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 507 Riverside Dr, Lyons, CO?

The 2025 property tax bill for 507 Riverside Dr, Lyons, CO was $47. The county assessed it at $902.

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