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CondominiumResidential
$293,447$313 / 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 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
Last sold for $114,000 on Aug 2, 2000

18 4TH ST

WESTFORD, MA 01886
3
Beds
1
Baths
937 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.
1.96 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.
3
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

$293K
$275K low$312K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$114,000 · Aug 2, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,238 (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.$240,400 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$240,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$340,670

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.42
11
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
23
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.
95
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
25
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.6 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.Condominium
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.2000
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.Gravity
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(5)

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.

E
Colonel John Robinson Elementary School
Elementary · Grades PK–2 · 0.3 mi
H
Westford AcademyA
High · Grades 9–12 · 0.8 mi
M
Lloyd G. Blanchard Middle SchoolA-
Middle · Grades 6–8 · 2.0 mi

District: Westford School District

Neighborhood · ZIP 01886These 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.19
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 100.80

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.1.8%
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.25,048
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.803 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$163,754
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$183,117
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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

18 4th 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.

  • Among the least valuable homes in Westford 01886
  • Costs less per square foot than 94% of homes in Westford 01886
  • Smaller than 94% of homes in Westford 01886
  • Has a bigger lot than 89% of homes in Middlesex County
  • Older than 95% of homes in Westford 01886

What homes are worth in Westford 01886

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

This home
$323K$1.6M

This home is worth less than almost all homes in Westford 01886.

How it measures up in Westford 01886

The dot is this home. The mark in the middle is the typical home in Westford 01886.

Estimated value$293,447
CheaperTypical $827,380Pricier

Cheaper than almost all homes nearby

Price per ft²$313
CheaperTypical $417Pricier

Pricier than 6% of homes nearby

Living area937 ft²
SmallerTypical 2,060 ft²Bigger

Bigger than 6% of homes nearby

Lot size1.96 ac
SmallerTypical 0.92 acBigger

Bigger than 86% of homes nearby

Year built1900
OlderTypical 1984Newer

Newer than 5% of homes nearby

How 18 4th St ranks against every home in each area.
MeasureThis homeWestford 01886Middlesex County
Estimated valuepricier than$293,447almost no homes3% of homes
Price per ft²pricier than$3136% of homes11% of homes
Living areabigger than937 ft²6% of homes9% of homes
Lot sizebigger than1.96 ac86% of homes89% of homes
Year builtnewer than19005% of homes15% of homes

About 18 4th St

How much is 18 4th St, Westford, MA worth?

The TopHap Estimate for 18 4th St, Westford, MA is $293,447 as of Aug 30, 2026. The likely range is $275,369 to $311,525. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 4th St, Westford, MA last sell?

18 4th St, Westford, MA last sold on Aug 2, 2000 for $114,000, according to the county's recorded deed.

How big is 18 4th St, Westford, MA?

18 4th St, Westford, MA has 3 bedrooms, 1 bathrooms and 937 square feet of living space.

When was 18 4th St, Westford, MA built?

18 4th St, Westford, MA was built in 1900, making it 126 years old. The building has 3 stories.

What schools serve 18 4th St, Westford, MA?

18 4th St, Westford, MA is assigned to Colonel John Robinson Elementary School (elementary); Westford Academy (high), rated A; Lloyd G. Blanchard Middle School (middle), rated A-. All sit in Westford School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 4th St, Westford, MA compare to other homes in Westford 01886?

Among the 8,171 homes in Westford 01886, it is worth more than almost none of them ($293,447 against a typical $827,380), its price per square foot is higher than 6% of them ($313 against a typical $417), it is bigger than 6% of them (937 ft² against a typical 2,060 ft²), its lot is bigger than 86% of them (1.96 ac against a typical 0.92 ac) and it is newer than 5% of them (1900 against a typical 1984). Measured against all of Middlesex County, it is worth more than 3% 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 18 4th St, Westford, MA?

The 2025 property tax bill for 18 4th St, Westford, MA was $3,238. The county assessed it at $240,400.

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