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Residential - Vacant LandResidential
$578,249
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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

31 FIR AVE

WALTHAM, MA 02451
0
Baths
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$578K
$543K low$613K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$336 (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.$34,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$34,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$32,600

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential - Vacant Land
CountyMiddlesex
Lot (acres)The size of the land the home sits on, from county records.0.12
HeatingThe type of heating system in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

M
John F. Kennedy Middle SchoolA-
Middle · Grades 6–8 · 0.4 mi
E
Douglas MacArthur Elementary SchoolA
Elementary · Grades KG–5 · 0.6 mi
H
Waltham Sr High SchoolC
High · Grades 9–12 · 0.7 mi

District: Waltham School District

Neighborhood · ZIP 02451These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.76

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.7%
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.16,966
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,036 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,384
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$156,140
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

31 Fir 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 less than 90% of homes in Piety Corner
  • Has a smaller lot than 81% of homes in Middlesex County

What homes are worth in Waltham 02451

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

This home
$370K$1.5M

This home is worth more than 11% of homes in Waltham 02451.

How it measures up in Waltham 02451

The dot is this home. The mark in the middle is the typical home in Waltham 02451.

Estimated value$578,249
CheaperTypical $787,577Pricier

Pricier than 11% of homes nearby

Lot size0.12 ac
SmallerTypical 0.18 acBigger

Bigger than 29% of homes nearby

How 31 Fir Ave ranks against every home in each area.
MeasureThis homePiety CornerWaltham 02451Middlesex County
Estimated valuepricier than$578,24910% of homes11% of homes23% of homes
Lot sizebigger than0.12 ac24% of homes29% of homes19% of homes

About 31 Fir Ave

How much is 31 Fir Ave, Waltham, MA worth?

The TopHap Estimate for 31 Fir Ave, Waltham, MA is $578,249 as of Aug 30, 2026. The likely range is $543,057 to $613,441. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 Fir Ave, Waltham, MA last sell?

31 Fir Ave, Waltham, MA last sold on Jul 3, 1963, according to the county's recorded deed.

What schools serve 31 Fir Ave, Waltham, MA?

31 Fir Ave, Waltham, MA is assigned to John F. Kennedy Middle School (middle), rated A-; Douglas MacArthur Elementary School (elementary), rated A; Waltham Sr High School (high), rated C. All sit in Waltham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31 Fir Ave, Waltham, MA compare to other homes in Waltham 02451?

Among the 4,967 homes in Waltham 02451, it is worth more than 11% of them ($578,249 against a typical $787,577) and its lot is bigger than 29% of them (0.12 ac against a typical 0.18 ac). Measured against all of Middlesex County, it is worth more than 23% 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 31 Fir Ave, Waltham, MA?

The 2025 property tax bill for 31 Fir Ave, Waltham, MA was $336. The county assessed it at $34,200.

More homes on Fir Ave

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More homes in Waltham 02451

Assigned schools

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