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CondominiumResidential
$690,087$249 / 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 91How 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 $685,000 on Mar 6, 2026

18 CROSS ST UNIT 1

WALTHAM, MA 02453
Building report
4
Beds
2
Baths
2,775 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.
1910
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$690K
$631K low$749K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$685,000 · Mar 6, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,041 (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.$615,200 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$615,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$615,200

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
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.
89
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
32
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.Condominium
CountyMiddlesex
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.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes

Transaction History(2)

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
John W. McDevitt Middle SchoolB
Middle · Grades 6–8 · 0.2 mi
E
James Fitzgerald Elementary SchoolB-
Elementary · Grades KG–5 · 1.1 mi
H
Waltham Sr High SchoolC
High · Grades 9–12 · 1.3 mi

District: Waltham School District

Neighborhood · ZIP 02453These 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.106
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.73

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.94%
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.6.8%
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.32,080
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.8,464 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$106,981
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$136,606
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

18 Cross St Unit 1 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 75% of homes in The Bleachery
  • Among the lowest price per square foot in Waltham 02453
  • Bigger than 81% of homes in The Bleachery
  • Older than 81% of homes in Middlesex County

What homes are worth in Waltham 02453

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

This home
$352K$1.3M

This home is worth more than 28% of homes in Waltham 02453.

How it measures up in Waltham 02453

The dot is this home. The mark in the middle is the typical home in Waltham 02453.

Estimated value$690,087
CheaperTypical $779,900Pricier

Pricier than 28% of homes nearby

Price per ft²$249
CheaperTypical $493Pricier

Cheaper than almost all homes nearby

Living area2,775 ft²
SmallerTypical 1,873 ft²Bigger

Bigger than 79% of homes nearby

Year built1910
OlderTypical 1930Newer

Newer than 35% of homes nearby

How 18 Cross St Unit 1 ranks against every home in each area.
MeasureThis homeThe BleacheryWaltham 02453Middlesex County
Estimated valuepricier than$690,08725% of homes28% of homes38% of homes
Price per ft²pricier than$249almost no homesalmost no homes3% of homes
Living areabigger than2,775 ft²81% of homes79% of homes81% of homes
Year builtnewer than191024% of homes35% of homes19% of homes

About 18 Cross St Unit 1

How much is 18 Cross St Unit 1, Waltham, MA worth?

The TopHap Estimate for 18 Cross St Unit 1, Waltham, MA is $690,087 as of Aug 30, 2026. The likely range is $630,830 to $749,344. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Cross St Unit 1, Waltham, MA last sell?

18 Cross St Unit 1, Waltham, MA last sold on Mar 6, 2026 for $685,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 18 Cross St Unit 1, Waltham, MA?

18 Cross St Unit 1, Waltham, MA has 4 bedrooms, 2 bathrooms and 2,775 square feet of living space.

When was 18 Cross St Unit 1, Waltham, MA built?

18 Cross St Unit 1, Waltham, MA was built in 1910, making it 116 years old. The building has 3 stories.

What schools serve 18 Cross St Unit 1, Waltham, MA?

18 Cross St Unit 1, Waltham, MA is assigned to John W. McDevitt Middle School (middle), rated B; James Fitzgerald Elementary School (elementary), rated B-; 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 18 Cross St Unit 1, Waltham, MA compare to other homes in Waltham 02453?

Among the 6,296 homes in Waltham 02453, it is worth more than 28% of them ($690,087 against a typical $779,900), its price per square foot is higher than almost none of them ($249 against a typical $493), it is bigger than 79% of them (2,775 ft² against a typical 1,873 ft²) and it is newer than 35% of them (1910 against a typical 1930). 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 18 Cross St Unit 1, Waltham, MA?

The 2025 property tax bill for 18 Cross St Unit 1, Waltham, MA was $6,041. The county assessed it at $615,200.

More homes on Cross St Unit 1

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Assigned schools

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