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Single Family ResidenceResidential
$431,396$215 / 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 $225,000 on Apr 28, 2010

303 OLD DEEP RIVER TPKE

KILLINGWORTH, CT 06419
3
Beds
1.5
Baths
2,011 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.
3.7 ac
Lot SizeThe size of the land the home sits on, from county records.
1940
Year BuiltThe year the home was originally built, according to county records.
1
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

$431K
$395K low$468K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$225,000 · Apr 28, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,936 (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.$264,530 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$72,310
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$192,220
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$264,530
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$185,171

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.41
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
53
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyLOWER CONNECTICUT RIVER VALLEY
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.1991
Lot (acres)The size of the land the home sits on, from county records.3.70
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
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
CoolingThe type of cooling or air conditioning in the home.Yes
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

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Killingworth Elementary SchoolA-
Elementary · Grades PK–3 · 1.4 mi
M
Haddam-Killingworth Middle SchoolA-
Middle · Grades 6–8 · 1.9 mi
H
Haddam-Killingworth High SchoolA
High · Grades 9–12 · 7.3 mi

District: Regional School District 17

Neighborhood · ZIP 06419These 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.78
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.120
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.61

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.5,642
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.159 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$125,563
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$180,498
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.51 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

303 Old Deep River Tpke 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 90% of homes in Killingworth 06419
  • Costs less per square foot than 97% of homes in Killingworth 06419
  • Bigger than 66% of homes in Lower Connecticut River Valley County
  • Has a bigger lot than 91% of homes in Lower Connecticut River Valley County
  • Older than 95% of homes in Killingworth 06419

What homes are worth in Killingworth 06419

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

This home
$350K$1.3M

This home is worth more than 10% of homes in Killingworth 06419.

How it measures up in Killingworth 06419

The dot is this home. The mark in the middle is the typical home in Killingworth 06419.

Estimated value$431,396
CheaperTypical $633,705Pricier

Pricier than 10% of homes nearby

Price per ft²$215
CheaperTypical $289Pricier

Pricier than 3% of homes nearby

Living area2,011 ft²
SmallerTypical 2,090 ft²Bigger

Bigger than 47% of homes nearby

Lot size3.7 ac
SmallerTypical 2.7 acBigger

Bigger than 69% of homes nearby

Year built1940
OlderTypical 1985Newer

Newer than 5% of homes nearby

How 303 Old Deep River Tpke ranks against every home in each area.
MeasureThis homeKillingworth 06419Lower Connecticut River Valley County
Estimated valuepricier than$431,39610% of homes39% of homes
Price per ft²pricier than$2153% of homes12% of homes
Living areabigger than2,011 ft²47% of homes66% of homes
Lot sizebigger than3.7 ac69% of homes91% of homes
Year builtnewer than19405% of homes18% of homes

About 303 Old Deep River Tpke

How much is 303 Old Deep River Tpke, Killingworth, CT worth?

The TopHap Estimate for 303 Old Deep River Tpke, Killingworth, CT is $431,396 as of Sep 24, 2026. The likely range is $394,806 to $467,986. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 303 Old Deep River Tpke, Killingworth, CT last sell?

303 Old Deep River Tpke, Killingworth, CT last sold on Apr 28, 2010 for $225,000, according to the county's recorded deed.

How big is 303 Old Deep River Tpke, Killingworth, CT?

303 Old Deep River Tpke, Killingworth, CT has 3 bedrooms, 1.5 bathrooms, 2,011 square feet of living space and a 3.70-acre lot.

When was 303 Old Deep River Tpke, Killingworth, CT built?

303 Old Deep River Tpke, Killingworth, CT was built in 1940, making it 86 years old. It is a ranch home. The building has 1 story.

What schools serve 303 Old Deep River Tpke, Killingworth, CT?

303 Old Deep River Tpke, Killingworth, CT is assigned to Killingworth Elementary School (elementary), rated A-; Haddam-Killingworth Middle School (middle), rated A-; Haddam-Killingworth High School (high), rated A. All sit in Regional School District 17. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 303 Old Deep River Tpke, Killingworth, CT compare to other homes in Killingworth 06419?

Among the 2,550 homes in Killingworth 06419, it is worth more than 10% of them ($431,396 against a typical $633,705), its price per square foot is higher than 3% of them ($215 against a typical $289), it is bigger than 47% of them (2,011 ft² against a typical 2,090 ft²), its lot is bigger than 69% of them (3.7 ac against a typical 2.7 ac) and it is newer than 5% of them (1940 against a typical 1985). Measured against all of Lower Connecticut River Valley County, it is worth more than 39% 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 303 Old Deep River Tpke, Killingworth, CT?

The 2025 property tax bill for 303 Old Deep River Tpke, Killingworth, CT was $6,936. The county assessed it at $264,530.

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