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Single Family ResidenceResidential
$2,839,212$718 / 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 Sep 24, 2026
Last sold for $1,550,000 on Jan 28, 2014

18 MORTAR ROCK RD

WESTPORT, CT 06880
5
Beds
5.5
Baths
3,954 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.
0.69 ac
Lot SizeThe size of the land the home sits on, from county records.
1966
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
12
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$2.8M
$2.7M low$3M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,550,000 · Jan 28, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$19,337 (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.$1,025,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$412,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$612,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,025,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$717,710

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
CountyWESTERN CONNECTICUT
Lot (acres)The size of the land the home sits on, from county records.0.69
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
PoolWhether the property has a pool, and what kind, such as in-ground.Pool W/Hot Tub/Spa

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
Saugatuck Elementary SchoolA+
Elementary · Grades KG–5 · 0.7 mi
H
Staples High SchoolA+
High · Grades 9–12 · 2.5 mi
M
Bedford Middle SchoolA+
Middle · Grades 6–8 · 2.6 mi

District: Westport School District

Neighborhood · ZIP 06880These 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.94
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.82

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.36%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.2%
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.30,681
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,183 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$219,182
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$324,431
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

18 Mortar Rock 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 90% of homes in Western Connecticut County
  • Costs more per square foot than 84% of homes in Western Connecticut County
  • Bigger than 88% of homes in Western Connecticut County
  • Has a bigger lot than 71% of homes in Compo

What homes are worth in Westport 06880

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

This home
$588K$6.7M

This home is worth more than 71% of homes in Westport 06880.

How it measures up in Westport 06880

The dot is this home. The mark in the middle is the typical home in Westport 06880.

Estimated value$2,839,212
CheaperTypical $2,055,475Pricier

Pricier than 71% of homes nearby

Price per ft²$718
CheaperTypical $712Pricier

Pricier than 51% of homes nearby

Living area3,954 ft²
SmallerTypical 2,904 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.69 ac
SmallerTypical 1 acBigger

Bigger than 43% of homes nearby

Year built1966
OlderTypical 1965Newer

Newer than 52% of homes nearby

How 18 Mortar Rock Rd ranks against every home in each area.
MeasureThis homeCompoWestport 06880Western Connecticut County
Estimated valuepricier than$2,839,21259% of homes71% of homes90% of homes
Price per ft²pricier than$71829% of homes51% of homes84% of homes
Living areabigger than3,954 ft²76% of homes71% of homes88% of homes
Lot sizebigger than0.69 ac71% of homes43% of homes50% of homes
Year builtnewer than196659% of homes52% of homes49% of homes

About 18 Mortar Rock Rd

How much is 18 Mortar Rock Rd, Westport, CT worth?

The TopHap Estimate for 18 Mortar Rock Rd, Westport, CT is $2,839,212 as of Sep 24, 2026. The likely range is $2,700,243 to $2,978,181. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Mortar Rock Rd, Westport, CT last sell?

18 Mortar Rock Rd, Westport, CT last sold on Jan 28, 2014 for $1,550,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 18 Mortar Rock Rd, Westport, CT?

18 Mortar Rock Rd, Westport, CT has 5 bedrooms, 5.5 bathrooms, 3,954 square feet of living space and a 0.69-acre lot.

When was 18 Mortar Rock Rd, Westport, CT built?

18 Mortar Rock Rd, Westport, CT was built in 1966, making it 60 years old. It is a colonial home. The building has 2 stories.

What schools serve 18 Mortar Rock Rd, Westport, CT?

18 Mortar Rock Rd, Westport, CT is assigned to Saugatuck Elementary School (elementary), rated A+; Staples High School (high), rated A+; Bedford Middle School (middle), rated A+. All sit in Westport School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Mortar Rock Rd, Westport, CT compare to other homes in Westport 06880?

Among the 9,793 homes in Westport 06880, it is worth more than 71% of them ($2,839,212 against a typical $2,055,475), its price per square foot is higher than 51% of them ($718 against a typical $712), it is bigger than 71% of them (3,954 ft² against a typical 2,904 ft²), its lot is bigger than 43% of them (0.69 ac against a typical 1 ac) and it is newer than 52% of them (1966 against a typical 1965). Measured against all of Western Connecticut County, it is worth more than 90% 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 18 Mortar Rock Rd, Westport, CT?

The 2025 property tax bill for 18 Mortar Rock Rd, Westport, CT was $19,337. The county assessed it at $1,025,300.

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