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Single Family ResidenceResidential
$173,239$142 / 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 95How 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 $106,500 on Aug 13, 2018

157 OLIVIA ST

DERBY, CT 06418
3
Beds
1
Baths
1,216 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.
2,178 ft²
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$173K
$165K low$182K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$106,500 · Aug 13, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,266 (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.$75,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$56,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$75,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$52,920

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.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
4
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
97
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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
CountyNAUGATUCK VALLEY
Lot (acres)The size of the land the home sits on, from county records.0.05
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning 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.

E
Irving SchoolD
Elementary · Grades KG–5 · 0.3 mi
H
Derby High SchoolF
High · Grades 9–12 · 0.8 mi
M
Derby Middle SchoolC
Middle · Grades 6–8 · 0.8 mi

District: Derby School District

Neighborhood · ZIP 06418These 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.109
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

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.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
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.12,707
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,336 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,431
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,707
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Owner Tools

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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

157 Olivia 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 least valuable homes in Derby 06418
  • Among the lowest price per square foot in Derby 06418
  • Smaller than 71% of homes in Naugatuck Valley County
  • Among the smallest lots in Derby 06418
  • Older than 88% of homes in Naugatuck Valley County

What homes are worth in Derby 06418

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

This home
$191K$598K

This home is worth less than almost all homes in Derby 06418.

How it measures up in Derby 06418

The dot is this home. The mark in the middle is the typical home in Derby 06418.

Estimated value$173,239
CheaperTypical $345,113Pricier

Cheaper than almost all homes nearby

Price per ft²$142
CheaperTypical $253Pricier

Cheaper than almost all homes nearby

Living area1,216 ft²
SmallerTypical 1,392 ft²Bigger

Bigger than 35% of homes nearby

Lot size2,178 ft²
SmallerTypical 0.25 acBigger

Smaller than almost all homes nearby

Year built1920
OlderTypical 1959Newer

Newer than 22% of homes nearby

How 157 Olivia St ranks against every home in each area.
MeasureThis homeDerby 06418Naugatuck Valley County
Estimated valuepricier than$173,239almost no homes3% of homes
Price per ft²pricier than$142almost no homesalmost no homes
Living areabigger than1,216 ft²35% of homes29% of homes
Lot sizebigger than2,178 ft²almost no homes2% of homes
Year builtnewer than192022% of homes12% of homes

About 157 Olivia St

How much is 157 Olivia St, Derby, CT worth?

The TopHap Estimate for 157 Olivia St, Derby, CT is $173,239 as of Aug 30, 2026. The likely range is $164,522 to $181,956. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 157 Olivia St, Derby, CT last sell?

157 Olivia St, Derby, CT last sold on Aug 13, 2018 for $106,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 157 Olivia St, Derby, CT?

157 Olivia St, Derby, CT has 3 bedrooms, 1 bathrooms, 1,216 square feet of living space and a 0.05-acre lot.

When was 157 Olivia St, Derby, CT built?

157 Olivia St, Derby, CT was built in 1920, making it 106 years old. The building has 2 stories.

What schools serve 157 Olivia St, Derby, CT?

157 Olivia St, Derby, CT is assigned to Irving School (elementary), rated D; Derby High School (high), rated F; Derby Middle School (middle), rated C. All sit in Derby School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 157 Olivia St, Derby, CT compare to other homes in Derby 06418?

Among the 3,850 homes in Derby 06418, it is worth more than almost none of them ($173,239 against a typical $345,113), its price per square foot is higher than almost none of them ($142 against a typical $253), it is bigger than 35% of them (1,216 ft² against a typical 1,392 ft²), its lot is bigger than almost none of them (2,178 ft² against a typical 0.25 ac) and it is newer than 22% of them (1920 against a typical 1959). Measured against all of Naugatuck Valley County, it is worth more than 3% 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 157 Olivia St, Derby, CT?

The 2025 property tax bill for 157 Olivia St, Derby, CT was $3,266. The county assessed it at $75,600.

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