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Single Family ResidenceResidential
$510,204$373 / 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 Jun 23, 2026
Last sold for $510,000 on Nov 12, 2025

18 SAINT JOHN ST

SOUTH DARTMOUTH, MA 02748
4
Beds
1
Baths
1,367 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$510K
$469K low$551K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$510,000 · Nov 12, 2025
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$25,704
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$20,563
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.95%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$484,500
PLAZA HOME MORTGAGE INC · recorded Nov 12, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,640 (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.$306,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$117,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$188,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$544,825

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.64 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.72%
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.1 percent coastal flood zone

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.Conventional
CountyBRISTOL
Lot (acres)The size of the land the home sits on, from county records.0.11
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
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(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
Joseph DemelloB+
Elementary · Grades KG–5 · 0.4 mi
M
Dartmouth Middle SchoolB+
Middle · Grades 6–8 · 2.0 mi
H
Dartmouth High SchoolB+
High · Grades 9–12 · 2.6 mi

District: Dartmouth School District

Neighborhood · ZIP 02748These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.58

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.26%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.12,068
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.466 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$114,677
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$132,559
Average tempThe average temperature here across a full year.50°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.52%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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 Saint John 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.

  • Worth less than 77% of homes in South Dartmouth 02748
  • Costs less per square foot than 73% of homes in South Dartmouth 02748
  • Smaller than 70% of homes in South Dartmouth 02748
  • Has a smaller lot than 94% of homes in South Dartmouth 02748
  • Older than 89% of homes in South Dartmouth 02748

What homes are worth in South Dartmouth 02748

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

This home
$386K$3M

This home is worth more than 23% of homes in South Dartmouth 02748.

How it measures up in South Dartmouth 02748

The dot is this home. The mark in the middle is the typical home in South Dartmouth 02748.

Estimated value$510,204
CheaperTypical $723,206Pricier

Pricier than 23% of homes nearby

Price per ft²$373
CheaperTypical $427Pricier

Pricier than 27% of homes nearby

Living area1,367 ft²
SmallerTypical 1,772 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.11 ac
SmallerTypical 0.41 acBigger

Bigger than 6% of homes nearby

Year built1900
OlderTypical 1965Newer

Newer than 11% of homes nearby

How 18 Saint John St ranks against every home in each area.
MeasureThis homeSouth Dartmouth 02748Bristol County
Estimated valuepricier than$510,20423% of homes46% of homes
Price per ft²pricier than$37327% of homes65% of homes
Living areabigger than1,367 ft²30% of homes33% of homes
Lot sizebigger than0.11 ac6% of homes11% of homes
Year builtnewer than190011% of homes14% of homes

About 18 Saint John St

How much is 18 Saint John St, South Dartmouth, MA worth?

The TopHap Estimate for 18 Saint John St, South Dartmouth, MA is $510,204 as of Jun 23, 2026. The likely range is $469,387 to $551,020. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Saint John St, South Dartmouth, MA last sell?

18 Saint John St, South Dartmouth, MA last sold on Nov 12, 2025 for $510,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 18 Saint John St, South Dartmouth, MA?

18 Saint John St, South Dartmouth, MA has 4 bedrooms, 1 bathrooms, 1,367 square feet of living space and a 0.11-acre lot.

When was 18 Saint John St, South Dartmouth, MA built?

18 Saint John St, South Dartmouth, MA was built in 1900, making it 126 years old. It is a conventional home. The building has 2 stories.

What schools serve 18 Saint John St, South Dartmouth, MA?

18 Saint John St, South Dartmouth, MA is assigned to Joseph Demello (elementary), rated B+; Dartmouth Middle School (middle), rated B+; Dartmouth High School (high), rated B+. All sit in Dartmouth School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Saint John St, South Dartmouth, MA compare to other homes in South Dartmouth 02748?

Among the 4,976 homes in South Dartmouth 02748, it is worth more than 23% of them ($510,204 against a typical $723,206), its price per square foot is higher than 27% of them ($373 against a typical $427), it is bigger than 30% of them (1,367 ft² against a typical 1,772 ft²), its lot is bigger than 6% of them (0.11 ac against a typical 0.41 ac) and it is newer than 11% of them (1900 against a typical 1965). Measured against all of Bristol County, it is worth more than 46% 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 Saint John St, South Dartmouth, MA?

The 2025 property tax bill for 18 Saint John St, South Dartmouth, MA was $2,640. The county assessed it at $306,600.

Closest homes

More homes in South Dartmouth 02748

Assigned schools

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