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Single Family ResidenceResidential
$714,829$571 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $610,000 on Oct 18, 2021

18 CASTLETON AVE

RANDOLPH, MA 02368
3
Beds
3
Baths
1,251 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
2017
Year BuiltThe year the home was originally built, according to county records.
1
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

$715K
$687K low$742K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$610,000 · Oct 18, 2021
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.$135,329
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$108,263
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.85%
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.$579,500
EVOLVE BANK & TRUST · P · recorded Oct 18, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,133 (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.$614,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$250,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$363,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$522,215

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.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Raised Ranch
CountyNORFOLK
Lot (acres)The size of the land the home sits on, from county records.0.51
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
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
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
Martin E Young Elementary SchoolD+
Elementary · Grades KG–5 · 0.6 mi
H
Randolph High SchoolD
High · Grades 9–12 · 0.9 mi
M
Randolph Community Middle SchoolD+
Middle · Grades 6–8 · 2.7 mi

District: Randolph School District

Neighborhood · ZIP 02368These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
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.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.36,419
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,217 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,288
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$125,123
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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 Castleton Ave 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 89% of homes in Randolph 02368
  • Costs more per square foot than 96% of homes in Randolph 02368
  • Smaller than 75% of homes in Norfolk County
  • Has a bigger lot than 86% of homes in Randolph 02368
  • Among the newest homes in Randolph 02368

What homes are worth in Randolph 02368

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

This home
$263K$869K

This home is worth more than 89% of homes in Randolph 02368.

How it measures up in Randolph 02368

The dot is this home. The mark in the middle is the typical home in Randolph 02368.

Estimated value$714,829
CheaperTypical $549,849Pricier

Pricier than 89% of homes nearby

Price per ft²$571
CheaperTypical $403Pricier

Pricier than 96% of homes nearby

Living area1,251 ft²
SmallerTypical 1,344 ft²Bigger

Bigger than 40% of homes nearby

Lot size0.51 ac
SmallerTypical 0.28 acBigger

Bigger than 86% of homes nearby

Year built2017
OlderTypical 1962Newer

Newer than almost all homes nearby

How 18 Castleton Ave ranks against every home in each area.
MeasureThis homeRandolph 02368Norfolk County
Estimated valuepricier than$714,82989% of homes47% of homes
Price per ft²pricier than$57196% of homes76% of homes
Living areabigger than1,251 ft²40% of homes25% of homes
Lot sizebigger than0.51 ac86% of homes63% of homes
Year builtnewer than2017almost all homes97% of homes

About 18 Castleton Ave

How much is 18 Castleton Ave, Randolph, MA worth?

The TopHap Estimate for 18 Castleton Ave, Randolph, MA is $714,829 as of Jul 14, 2026. The likely range is $687,365 to $742,293. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Castleton Ave, Randolph, MA last sell?

18 Castleton Ave, Randolph, MA last sold on Oct 18, 2021 for $610,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 18 Castleton Ave, Randolph, MA?

18 Castleton Ave, Randolph, MA has 3 bedrooms, 3 bathrooms, 1,251 square feet of living space and a 0.51-acre lot.

When was 18 Castleton Ave, Randolph, MA built?

18 Castleton Ave, Randolph, MA was built in 2017, making it 9 years old. It is a raised ranch home. The building has 1 story.

What schools serve 18 Castleton Ave, Randolph, MA?

18 Castleton Ave, Randolph, MA is assigned to Martin E Young Elementary School (elementary), rated D+; Randolph High School (high), rated D; Randolph Community Middle School (middle), rated D+. All sit in Randolph School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 Castleton Ave, Randolph, MA compare to other homes in Randolph 02368?

Among the 9,442 homes in Randolph 02368, it is worth more than 89% of them ($714,829 against a typical $549,849), its price per square foot is higher than 96% of them ($571 against a typical $403), it is bigger than 40% of them (1,251 ft² against a typical 1,344 ft²), its lot is bigger than 86% of them (0.51 ac against a typical 0.28 ac) and it is newer than almost all of them (2017 against a typical 1962). Measured against all of Norfolk County, it is worth more than 47% 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 Castleton Ave, Randolph, MA?

The 2025 property tax bill for 18 Castleton Ave, Randolph, MA was $7,133. The county assessed it at $614,400.

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Assigned schools

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