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Single Family ResidenceResidential
$549,325$263 / 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 Aug 30, 2026
Last sold for $360,000 on Aug 20, 2020

121 MOUNTAIN SPRING RD

BURLINGTON, CT 06013
4
Beds
2.5
Baths
2,085 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.
1.05 ac
Lot SizeThe size of the land the home sits on, from county records.
1992
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$549K
$503K low$595K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$360,000 · Aug 20, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,334 (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.$313,320 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$80,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$232,820
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$313,320
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$219,324

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.Colonial
CountyNORTHWEST HILLS
Lot (acres)The size of the land the home sits on, from county records.1.05
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

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
Lake Garda Elementary SchoolA
Elementary · Grades PK–4 · 2.4 mi
M
Har-Bur Middle SchoolB
Middle · Grades 5–8 · 2.6 mi
H
Lewis S. Mills High SchoolB+
High · Grades 9–12 · 2.7 mi

District: Regional School District 10

Neighborhood · ZIP 06013These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.66

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.8,827
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.295 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$146,997
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,053
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.53 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

121 Mountain Spring Rd 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 more than 66% of homes in Northwest Hills County
  • Bigger than 65% of homes in Northwest Hills County
  • Newer than 82% of homes in Northwest Hills County

What homes are worth in Burlington 06013

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

This home
$258K$1M

This home is worth more than 54% of homes in Burlington 06013.

How it measures up in Burlington 06013

The dot is this home. The mark in the middle is the typical home in Burlington 06013.

Estimated value$549,325
CheaperTypical $531,459Pricier

Pricier than 54% of homes nearby

Price per ft²$263
CheaperTypical $263Pricier

Pricier than 51% of homes nearby

Living area2,085 ft²
SmallerTypical 2,082 ft²Bigger

Bigger than 50% of homes nearby

Lot size1.05 ac
SmallerTypical 1.2 acBigger

Bigger than 41% of homes nearby

Year built1992
OlderTypical 1983Newer

Newer than 66% of homes nearby

How 121 Mountain Spring Rd ranks against every home in each area.
MeasureThis homeBurlington 06013Northwest Hills County
Estimated valuepricier than$549,32554% of homes66% of homes
Price per ft²pricier than$26351% of homes54% of homes
Living areabigger than2,085 ft²50% of homes65% of homes
Lot sizebigger than1.05 ac41% of homes48% of homes
Year builtnewer than199266% of homes82% of homes

About 121 Mountain Spring Rd

How much is 121 Mountain Spring Rd, Burlington, CT worth?

The TopHap Estimate for 121 Mountain Spring Rd, Burlington, CT is $549,325 as of Aug 30, 2026. The likely range is $503,397 to $595,253. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 121 Mountain Spring Rd, Burlington, CT last sell?

121 Mountain Spring Rd, Burlington, CT last sold on Aug 20, 2020 for $360,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 121 Mountain Spring Rd, Burlington, CT?

121 Mountain Spring Rd, Burlington, CT has 4 bedrooms, 2.5 bathrooms, 2,085 square feet of living space and a 1.05-acre lot.

When was 121 Mountain Spring Rd, Burlington, CT built?

121 Mountain Spring Rd, Burlington, CT was built in 1992, making it 34 years old. It is a colonial home. The building has 2 stories.

What schools serve 121 Mountain Spring Rd, Burlington, CT?

121 Mountain Spring Rd, Burlington, CT is assigned to Lake Garda Elementary School (elementary), rated A; Har-Bur Middle School (middle), rated B; Lewis S. Mills High School (high), rated B+. All sit in Regional School District 10. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 121 Mountain Spring Rd, Burlington, CT compare to other homes in Burlington 06013?

Among the 3,555 homes in Burlington 06013, it is worth more than 54% of them ($549,325 against a typical $531,459), its price per square foot is higher than 51% of them ($263 against a typical $263), it is bigger than 50% of them (2,085 ft² against a typical 2,082 ft²), its lot is bigger than 41% of them (1.05 ac against a typical 1.2 ac) and it is newer than 66% of them (1992 against a typical 1983). Measured against all of Northwest Hills County, it is worth more than 66% 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 121 Mountain Spring Rd, Burlington, CT?

The 2025 property tax bill for 121 Mountain Spring Rd, Burlington, CT was $8,334. The county assessed it at $313,320.

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