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Single Family ResidenceResidential
$963,712$86 / 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 88How 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

345 BOSTON RD

BILLERICA, MA 01821
4
Beds
2
Baths
11,155 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.
0.92 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.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$964K
$850K low$1.1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,415 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$983,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$359,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$624,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$970,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$960,735

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.38
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
11
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
59
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
90
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.
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
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.92
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(4)

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

H
Billerica Memorial High SchoolC+
High · Grades 8–12 · 0.2 mi
M
Marshall Middle SchoolB-
Middle · Grades 5–7 · 0.4 mi
E
ParkerB-
Elementary · Grades KG–4 · 0.5 mi

District: Billerica School District

Neighborhood · ZIP 01821These 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.40
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
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.98%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
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.1.3%
PopulationHow many people live in this area.31,495
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,857 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$133,460
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$152,991
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.47 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

345 Boston 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 94% of homes in Billerica 01821
  • Among the lowest price per square foot in Billerica 01821
  • Among the largest homes in Billerica 01821
  • Has a bigger lot than 78% of homes in Billerica 01821
  • Older than 98% of homes in Billerica 01821

What homes are worth in Billerica 01821

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

This home
$280K$1.1M

This home is worth more than 94% of homes in Billerica 01821.

How it measures up in Billerica 01821

The dot is this home. The mark in the middle is the typical home in Billerica 01821.

Estimated value$963,712
CheaperTypical $681,391Pricier

Pricier than 94% of homes nearby

Price per ft²$86
CheaperTypical $374Pricier

Cheaper than almost all homes nearby

Living area11,155 ft²
SmallerTypical 1,872 ft²Bigger

Bigger than almost all homes nearby

Lot size0.92 ac
SmallerTypical 0.57 acBigger

Bigger than 78% of homes nearby

Year built1900
OlderTypical 1970Newer

Newer than 2% of homes nearby

How 345 Boston Rd ranks against every home in each area.
MeasureThis homeBillerica 01821Middlesex County
Estimated valuepricier than$963,71294% of homes68% of homes
Price per ft²pricier than$86almost no homesalmost no homes
Living areabigger than11,155 ft²almost all homesalmost all homes
Lot sizebigger than0.92 ac78% of homes76% of homes
Year builtnewer than19002% of homes15% of homes

About 345 Boston Rd

How much is 345 Boston Rd, Billerica, MA worth?

The TopHap Estimate for 345 Boston Rd, Billerica, MA is $963,712 as of Sep 24, 2026. The likely range is $849,967 to $1,077,457. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 345 Boston Rd, Billerica, MA last sell?

345 Boston Rd, Billerica, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 345 Boston Rd, Billerica, MA?

345 Boston Rd, Billerica, MA has 4 bedrooms, 2 bathrooms, 11,155 square feet of living space and a 0.92-acre lot.

When was 345 Boston Rd, Billerica, MA built?

345 Boston Rd, Billerica, MA was built in 1900, making it 126 years old.

What schools serve 345 Boston Rd, Billerica, MA?

345 Boston Rd, Billerica, MA is assigned to Billerica Memorial High School (high), rated C+; Marshall Middle School (middle), rated B-; Parker (elementary), rated B-. All sit in Billerica School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 345 Boston Rd, Billerica, MA compare to other homes in Billerica 01821?

Among the 10,006 homes in Billerica 01821, it is worth more than 94% of them ($963,712 against a typical $681,391), its price per square foot is higher than almost none of them ($86 against a typical $374), it is bigger than almost all of them (11,155 ft² against a typical 1,872 ft²), its lot is bigger than 78% of them (0.92 ac against a typical 0.57 ac) and it is newer than 2% of them (1900 against a typical 1970). Measured against all of Middlesex County, it is worth more than 68% 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 345 Boston Rd, Billerica, MA?

The 2026 property tax bill for 345 Boston Rd, Billerica, MA was $11,415. The county assessed it at $983,200.

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