Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$566,527$411 / 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 90How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $117,000 on Feb 21, 2001

21 MILLS AVE

SOUTH BURLINGTON, VT 05403
3
Beds
1.5
Baths
1,380 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.
1959
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$567K
$510K low$623K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$117,000 · Feb 21, 2001

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,090 (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.$387,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$77,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$310,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$387,600

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.35
37
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
3
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
52
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
75
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
10
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 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
CountyCHITTENDEN
Lot (acres)The size of the land the home sits on, from county records.0.17
RoofThe main material covering the roof, such as asphalt shingle or tile.Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
FireplaceWhether the home has a fireplace, and what kind.Yes
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.Deck

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
Gertrude Chamberlin SchoolA
Elementary · Grades PK–5 · 0.4 mi
M
Frederick H. Tuttle Middle SchoolA+
Middle · Grades 6–8 · 1.1 mi
H
South Burlington High SchoolA+
High · Grades 9–12 · 1.2 mi

District: South Burlington School District

Neighborhood · ZIP 05403These 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.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.96

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.95%
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.7.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.19,965
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,192 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$98,551
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,891
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.49%

Owner Tools

Do you own this home?
Claim this home

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

21 Mills Ave 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 88% of homes in South Burlington 05403
  • Has a smaller lot than 86% of homes in Chittenden County
  • Older than 83% of homes in South Burlington 05403

What homes are worth in South Burlington 05403

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

This home
$260K$1.2M

This home is worth more than 62% of homes in South Burlington 05403.

How it measures up in South Burlington 05403

The dot is this home. The mark in the middle is the typical home in South Burlington 05403.

Estimated value$566,527
CheaperTypical $486,347Pricier

Pricier than 62% of homes nearby

Price per ft²$411
CheaperTypical $305Pricier

Pricier than 88% of homes nearby

Living area1,380 ft²
SmallerTypical 1,550 ft²Bigger

Bigger than 43% of homes nearby

Lot size0.17 ac
SmallerTypical 0.23 acBigger

Bigger than 25% of homes nearby

Year built1959
OlderTypical 1983Newer

Newer than 17% of homes nearby

How 21 Mills Ave ranks against every home in each area.
MeasureThis homeSouth Burlington 05403Chittenden County
Estimated valuepricier than$566,52762% of homes61% of homes
Price per ft²pricier than$41188% of homes87% of homes
Living areabigger than1,380 ft²43% of homes38% of homes
Lot sizebigger than0.17 ac25% of homes14% of homes
Year builtnewer than195917% of homes24% of homes

About 21 Mills Ave

How much is 21 Mills Ave, South Burlington, VT worth?

The TopHap Estimate for 21 Mills Ave, South Burlington, VT is $566,527 as of Aug 30, 2026. The likely range is $510,158 to $622,896. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Mills Ave, South Burlington, VT last sell?

21 Mills Ave, South Burlington, VT last sold on Feb 21, 2001 for $117,000, according to the county's recorded deed.

How big is 21 Mills Ave, South Burlington, VT?

21 Mills Ave, South Burlington, VT has 3 bedrooms, 1.5 bathrooms, 1,380 square feet of living space and a 0.17-acre lot.

When was 21 Mills Ave, South Burlington, VT built?

21 Mills Ave, South Burlington, VT was built in 1959, making it 67 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Mills Ave, South Burlington, VT?

21 Mills Ave, South Burlington, VT is assigned to Gertrude Chamberlin School (elementary), rated A; Frederick H. Tuttle Middle School (middle), rated A+; South Burlington High School (high), rated A+. All sit in South Burlington School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Mills Ave, South Burlington, VT compare to other homes in South Burlington 05403?

Among the 7,244 homes in South Burlington 05403, it is worth more than 62% of them ($566,527 against a typical $486,347), its price per square foot is higher than 88% of them ($411 against a typical $305), it is bigger than 43% of them (1,380 ft² against a typical 1,550 ft²), its lot is bigger than 25% of them (0.17 ac against a typical 0.23 ac) and it is newer than 17% of them (1959 against a typical 1983). Measured against all of Chittenden County, it is worth more than 61% 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 21 Mills Ave, South Burlington, VT?

The 2025 property tax bill for 21 Mills Ave, South Burlington, VT was $6,090. The county assessed it at $387,600.

More homes on Mills Ave

Closest homes

More homes in South Burlington 05403

Assigned schools

Explore the area

See this home in context

Open 21 Mills Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map