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Single Family ResidenceResidential
$305,380$530 / 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 47How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $137,500 on Sep 2, 2005

RIVERSIDE DR

CO
2
Beds
1
Baths
576 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.
2015
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.

Valuation

$305K
$144K low$466K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$137,500 · Sep 2, 2005
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$305,380
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$244,304

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$332 (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.$3,676 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,676
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$3,379
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$54,060

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.Single Family Residence
CountyBOULDER
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)
HeatingThe type of heating system in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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 · 9.2 mi
E
Lyons Elementary SchoolA-
Elementary · Grades PK–5 · 9.2 mi

District: St. Vrain Valley School District Re 1j

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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

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.

  • Worth less than 96% of homes in Boulder County
  • Costs more per square foot than 80% of homes in Allenspark Vicinity
  • Smaller than 98% of homes in Boulder County
  • Has a smaller lot than 94% of homes in Allenspark Vicinity
  • Newer than 98% of homes in Allenspark Vicinity

How it measures up in Allenspark Vicinity

The dot is this home. The mark in the middle is the typical home in Allenspark Vicinity.

Estimated value$305,380
CheaperTypical $459,747Pricier

Pricier than 18% of homes nearby

Price per ft²$530
CheaperTypical $436Pricier

Pricier than 80% of homes nearby

Living area576 ft²
SmallerTypical 1,096 ft²Bigger

Bigger than 12% of homes nearby

Lot size0.15 ac
SmallerTypical 1.29 acBigger

Bigger than 6% of homes nearby

Year built2015
OlderTypical 1958Newer

Newer than 98% of homes nearby

How Riverside Dr ranks against every home in each area.
MeasureThis homeAllenspark VicinityBoulder County
Estimated valuepricier than$305,38018% of homes4% of homes
Price per ft²pricier than$53080% of homes77% of homes
Living areabigger than576 ft²12% of homes2% of homes
Lot sizebigger than0.15 ac6% of homes35% of homes
Year builtnewer than201598% of homes91% of homes

About Riverside Dr

How much is Riverside Dr, , CO worth?

The TopHap Estimate for Riverside Dr, , CO is $305,380 as of Jul 14, 2026. The likely range is $144,337 to $466,423. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did Riverside Dr, , CO last sell?

Riverside Dr, , CO last sold on Sep 2, 2005 for $137,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is Riverside Dr, , CO?

Riverside Dr, , CO has 2 bedrooms, 1 bathrooms, 576 square feet of living space and a 0.15-acre lot.

When was Riverside Dr, , CO built?

Riverside Dr, , CO was built in 2015, making it 11 years old. The building has 1 story.

What schools serve Riverside Dr, , CO?

Riverside Dr, , 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 Riverside Dr, , CO compare to other homes in Allenspark Vicinity?

Among the 1,286 homes in Allenspark Vicinity, it is worth more than 18% of them ($305,380 against a typical $459,747), its price per square foot is higher than 80% of them ($530 against a typical $436), it is bigger than 12% of them (576 ft² against a typical 1,096 ft²), its lot is bigger than 6% of them (0.15 ac against a typical 1.29 ac) and it is newer than 98% of them (2015 against a typical 1958). Measured against all of Boulder County, it is worth more than 4% 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 Riverside Dr, , CO?

The 2025 property tax bill for Riverside Dr, , CO was $332. The county assessed it at $3,676.

Closest homes

Assigned schools

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