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Single Family ResidenceResidential
$9,999,999$4,205 / 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 92How 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 $6,900,000 on Mar 16, 2021

403 W HALLAM ST

ASPEN, CO 81611
3
Beds
4
Baths
2,378 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.
1888
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$10M
$10M low$10M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$6,900,000 · Mar 16, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$23,292 (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.$629,850 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$418,360
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$211,490
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$734,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$10,077,600

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.Victorian
CountyPitkin
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.2005
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)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Radiant
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes

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
Aspen Middle SchoolA-
Middle · Grades 5–8 · 1.2 mi
E
Aspen Elementary SchoolC+
Elementary · Grades KG–4 · 1.2 mi
H
Aspen High SchoolB-
High · Grades 9–12 · 1.3 mi

District: Aspen School District 1

Neighborhood · ZIP 81611These 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.92
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 100.116

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.60%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.39%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.7%
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.11,555
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.36 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$100,141
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$176,559
Average tempThe average temperature here across a full year.30°F
Annual precipHow much rain and melted snow falls here in a typical year.31 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

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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

403 W Hallam 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.

  • Among the most valuable homes in Aspen 81611
  • Costs more per square foot than 96% of homes in Pitkin County
  • Has a bigger lot than 66% of homes in Aspen 81611
  • Older than 98% of homes in Pitkin County

What homes are worth in Aspen 81611

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

This home
$180K$10M

This home is worth more than almost all homes in Aspen 81611.

How it measures up in Aspen 81611

The dot is this home. The mark in the middle is the typical home in Aspen 81611.

Estimated value$9,999,999
CheaperTypical $2,880,025Pricier

Pricier than almost all homes nearby

Price per ft²$4205
CheaperTypical $2084Pricier

Pricier than 94% of homes nearby

Living area2,378 ft²
SmallerTypical 1,548 ft²Bigger

Bigger than 64% of homes nearby

Lot size0.1 ac
SmallerTypical 1,786 ft²Bigger

Bigger than 66% of homes nearby

Year built1888
OlderTypical 1980Newer

Newer than 3% of homes nearby

How 403 W Hallam St ranks against every home in each area.
MeasureThis homeAspen 81611Pitkin County
Estimated valuepricier than$9,999,999almost all homesalmost all homes
Price per ft²pricier than$420594% of homes96% of homes
Living areabigger than2,378 ft²64% of homes64% of homes
Lot sizebigger than0.1 ac66% of homes59% of homes
Year builtnewer than18883% of homes2% of homes

About 403 W Hallam St

How much is 403 W Hallam St, Aspen, CO worth?

The TopHap Estimate for 403 W Hallam St, Aspen, CO is $9,999,999 as of Sep 24, 2026. The likely range is $9,999,999 to $9,999,999. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 403 W Hallam St, Aspen, CO last sell?

403 W Hallam St, Aspen, CO last sold on Mar 16, 2021 for $6,900,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 403 W Hallam St, Aspen, CO?

403 W Hallam St, Aspen, CO has 3 bedrooms, 4 bathrooms, 2,378 square feet of living space and a 0.10-acre lot.

When was 403 W Hallam St, Aspen, CO built?

403 W Hallam St, Aspen, CO was built in 1888, making it 138 years old. It is a victorian home. The building has 1 story.

What schools serve 403 W Hallam St, Aspen, CO?

403 W Hallam St, Aspen, CO is assigned to Aspen Middle School (middle), rated A-; Aspen Elementary School (elementary), rated C+; Aspen High School (high), rated B-. All sit in Aspen School District 1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 403 W Hallam St, Aspen, CO compare to other homes in Aspen 81611?

Among the 6,935 homes in Aspen 81611, it is worth more than almost all of them ($9,999,999 against a typical $2,880,025), its price per square foot is higher than 94% of them ($4205 against a typical $2084), it is bigger than 64% of them (2,378 ft² against a typical 1,548 ft²), its lot is bigger than 66% of them (0.1 ac against a typical 1,786 ft²) and it is newer than 3% of them (1888 against a typical 1980). Measured against all of Pitkin County, it is worth more than almost all 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 403 W Hallam St, Aspen, CO?

The 2025 property tax bill for 403 W Hallam St, Aspen, CO was $23,292. The county assessed it at $629,850.

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