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Single Family ResidenceResidential
$692,417
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 77How 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 $447,000 on Dec 22, 2020

503 BOSTON RD

BILLERICA, MA 01821
0
Baths
1.97 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$692K
$532K low$853K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$447,000 · Dec 22, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,863 (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.$779,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$375,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$403,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$718,700

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.37
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
57
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
89
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.1.97

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

E
ParkerB-
Elementary · Grades KG–4 · 0.8 mi
H
Billerica Memorial High SchoolC+
High · Grades 8–12 · 1.1 mi
M
Marshall Middle SchoolB-
Middle · Grades 5–7 · 1.6 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

503 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.

  • Has a bigger lot than 90% 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 54% 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$692,417
CheaperTypical $679,664Pricier

Pricier than 54% of homes nearby

Lot size1.97 ac
SmallerTypical 0.57 acBigger

Bigger than 90% of homes nearby

How 503 Boston Rd ranks against every home in each area.
MeasureThis homeBillerica 01821Middlesex County
Estimated valuepricier than$692,41754% of homes38% of homes
Lot sizebigger than1.97 ac90% of homes88% of homes

About 503 Boston Rd

How much is 503 Boston Rd, Billerica, MA worth?

The TopHap Estimate for 503 Boston Rd, Billerica, MA is $692,417 as of Sep 24, 2026. The likely range is $532,039 to $852,795. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 503 Boston Rd, Billerica, MA last sell?

503 Boston Rd, Billerica, MA last sold on Dec 22, 2020 for $447,000, according to the county's recorded deed.

What schools serve 503 Boston Rd, Billerica, MA?

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

How does 503 Boston Rd, Billerica, MA compare to other homes in Billerica 01821?

Among the 10,003 homes in Billerica 01821, it is worth more than 54% of them ($692,417 against a typical $679,664) and its lot is bigger than 90% of them (1.97 ac against a typical 0.57 ac). Measured against all of Middlesex County, it is worth more than 38% 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 503 Boston Rd, Billerica, MA?

The 2025 property tax bill for 503 Boston Rd, Billerica, MA was $8,863. The county assessed it at $779,500.

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