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Single Family ResidenceResidential
$290,072$250 / 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 97How 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 $102,000 on Mar 5, 1999

21 WATT AVE

LUDLOW, MA 01056
3
Beds
1
Baths
1,161 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1961
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$290K
$281K low$300K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$102,000 · Mar 5, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,198 (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.$262,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$95,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$166,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$240,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$286,069

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.25 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.Ranch
CountyHAMPDEN
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.1962
Lot (acres)The size of the land the home sits on, from county records.0.28
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.Asphalt
HeatingThe type of heating system in the home.Electric
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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
Paul R Baird Middle SchoolC-
Middle · Grades 6–8 · 1.4 mi
E
East Street Elementary School
Elementary · Grades PK–1 · 1.5 mi
H
Ludlow Senior High SchoolC
High · Grades 9–12 · 1.6 mi

District: Ludlow School District

Neighborhood · ZIP 01056These 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.57
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.54

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.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.20,664
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.738 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$79,317
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,106
Average tempThe average temperature here across a full year.48°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.50%

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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

21 Watt 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 80% of homes in Ludlow 01056
  • Smaller than 78% of homes in Ludlow 01056
  • Has a smaller lot than 65% of homes in Ludlow 01056

What homes are worth in Ludlow 01056

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

This home
$234K$710K

This home is worth more than 20% of homes in Ludlow 01056.

How it measures up in Ludlow 01056

The dot is this home. The mark in the middle is the typical home in Ludlow 01056.

Estimated value$290,072
CheaperTypical $358,910Pricier

Pricier than 20% of homes nearby

Price per ft²$250
CheaperTypical $248Pricier

Pricier than 52% of homes nearby

Living area1,161 ft²
SmallerTypical 1,530 ft²Bigger

Bigger than 22% of homes nearby

Lot size0.28 ac
SmallerTypical 0.4 acBigger

Bigger than 35% of homes nearby

Year built1961
OlderTypical 1964Newer

Newer than 46% of homes nearby

How 21 Watt Ave ranks against every home in each area.
MeasureThis homeLudlow 01056Hampden County
Estimated valuepricier than$290,07220% of homes29% of homes
Price per ft²pricier than$25052% of homes55% of homes
Living areabigger than1,161 ft²22% of homes25% of homes
Lot sizebigger than0.28 ac35% of homes47% of homes
Year builtnewer than196146% of homes58% of homes

About 21 Watt Ave

How much is 21 Watt Ave, Ludlow, MA worth?

The TopHap Estimate for 21 Watt Ave, Ludlow, MA is $290,072 as of Sep 24, 2026. The likely range is $280,594 to $299,550. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Watt Ave, Ludlow, MA last sell?

21 Watt Ave, Ludlow, MA last sold on Mar 5, 1999 for $102,000, according to the county's recorded deed.

How big is 21 Watt Ave, Ludlow, MA?

21 Watt Ave, Ludlow, MA has 3 bedrooms, 1 bathrooms, 1,161 square feet of living space and a 0.28-acre lot.

When was 21 Watt Ave, Ludlow, MA built?

21 Watt Ave, Ludlow, MA was built in 1961, making it 65 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Watt Ave, Ludlow, MA?

21 Watt Ave, Ludlow, MA is assigned to Paul R Baird Middle School (middle), rated C-; East Street Elementary School (elementary); Ludlow Senior High School (high), rated C. All sit in Ludlow School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Watt Ave, Ludlow, MA compare to other homes in Ludlow 01056?

Among the 7,285 homes in Ludlow 01056, it is worth more than 20% of them ($290,072 against a typical $358,910), its price per square foot is higher than 52% of them ($250 against a typical $248), it is bigger than 22% of them (1,161 ft² against a typical 1,530 ft²), its lot is bigger than 35% of them (0.28 ac against a typical 0.4 ac) and it is newer than 46% of them (1961 against a typical 1964). Measured against all of Hampden County, it is worth more than 29% 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 21 Watt Ave, Ludlow, MA?

The 2026 property tax bill for 21 Watt Ave, Ludlow, MA was $4,198. The county assessed it at $262,200.

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