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Single Family ResidenceResidential
$646,785$524 / 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 Jul 14, 2026
Last sold for $547,500 on Aug 19, 2022

66 W UNION ST

ASHLAND, MA 01721
3
Beds
1.5
Baths
1,234 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.
3.24 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

$647K
$615K low$679K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$547,500 · Aug 19, 2022
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.$159,285
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$127,428
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.75%
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.$487,500
GUARANTEED RATE INC · P · recorded Aug 19, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,951 (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.$544,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$253,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$291,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$574,465

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.58
92
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
15
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
58
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
93
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
33
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.57 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.Cape Cod
CountyMIDDLESEX
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.1974
Lot (acres)The size of the land the home sits on, from county records.3.24
ConstructionThe main material the home's frame and walls are built from.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

Transaction History(11)

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.

M
Ashland Middle SchoolA
Middle · Grades 6–8 · 0.2 mi
E
Henry E Warren Elementary School
Elementary · Grades KG–2 · 1.4 mi
H
Ashland High SchoolA
High · Grades 9–12 · 1.5 mi

District: Ashland School District

Neighborhood · ZIP 01721These 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.47
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.63

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.1%
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.18,969
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,481 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$135,702
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$157,800
Average tempThe average temperature here across a full year.49°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.58%

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

66 W Union 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 69% of homes in Middlesex County
  • Costs more per square foot than 92% of homes in Ashland 01721
  • Smaller than 87% of homes in Ashland 01721
  • Has a bigger lot than 92% of homes in Middlesex County
  • Older than 93% of homes in Ashland 01721

What homes are worth in Ashland 01721

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

This home
$438K$1.3M

This home is worth more than 42% of homes in Ashland 01721.

How it measures up in Ashland 01721

The dot is this home. The mark in the middle is the typical home in Ashland 01721.

Estimated value$646,785
CheaperTypical $682,219Pricier

Pricier than 42% of homes nearby

Price per ft²$524
CheaperTypical $390Pricier

Pricier than 92% of homes nearby

Living area1,234 ft²
SmallerTypical 1,799 ft²Bigger

Bigger than 13% of homes nearby

Lot size3.24 ac
SmallerTypical 0.73 acBigger

Bigger than 70% of homes nearby

Year built1940
OlderTypical 1984Newer

Newer than 7% of homes nearby

How 66 W Union St ranks against every home in each area.
MeasureThis homeAshland 01721Middlesex County
Estimated valuepricier than$646,78542% of homes31% of homes
Price per ft²pricier than$52492% of homes64% of homes
Living areabigger than1,234 ft²13% of homes22% of homes
Lot sizebigger than3.24 ac70% of homes92% of homes
Year builtnewer than19407% of homes36% of homes

About 66 W Union St

How much is 66 W Union St, Ashland, MA worth?

The TopHap Estimate for 66 W Union St, Ashland, MA is $646,785 as of Jul 14, 2026. The likely range is $615,024 to $678,546. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 66 W Union St, Ashland, MA last sell?

66 W Union St, Ashland, MA last sold on Aug 19, 2022 for $547,500, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 66 W Union St, Ashland, MA?

66 W Union St, Ashland, MA has 3 bedrooms, 1.5 bathrooms, 1,234 square feet of living space and a 3.24-acre lot.

When was 66 W Union St, Ashland, MA built?

66 W Union St, Ashland, MA was built in 1940, making it 86 years old. It is a cape cod home. The building has 1 story.

What schools serve 66 W Union St, Ashland, MA?

66 W Union St, Ashland, MA is assigned to Ashland Middle School (middle), rated A; Henry E Warren Elementary School (elementary); Ashland High School (high), rated A. All sit in Ashland School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 66 W Union St, Ashland, MA compare to other homes in Ashland 01721?

Among the 6,092 homes in Ashland 01721, it is worth more than 42% of them ($646,785 against a typical $682,219), its price per square foot is higher than 92% of them ($524 against a typical $390), it is bigger than 13% of them (1,234 ft² against a typical 1,799 ft²), its lot is bigger than 70% of them (3.24 ac against a typical 0.73 ac) and it is newer than 7% of them (1940 against a typical 1984). Measured against all of Middlesex County, it is worth more than 31% 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 66 W Union St, Ashland, MA?

The 2025 property tax bill for 66 W Union St, Ashland, MA was $6,951. The county assessed it at $544,300.

Closest homes

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Assigned schools

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