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Single Family ResidenceResidential
$543,192$730 / 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 86How 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 $339,000 on Oct 29, 2004

21 EMERALD CT

STONEHAM, MA 02180
2
Beds
1
Baths
744 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$543K
$465K low$621K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$339,000 · Oct 29, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,473 (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.$535,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$340,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$194,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$612,370

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.48
54
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
13
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
50
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
91
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.17 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
CountyMIDDLESEX
Lot (acres)The size of the land the home sits on, from county records.0.23
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.Hot Water
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(9)

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.

H
Stoneham High SchoolB+
High · Grades 9–12 · 0.1 mi
E
Colonial Park Elementary SchoolB+
Elementary · Grades PK–4 · 0.5 mi
M
Central Middle SchoolC
Middle · Grades 5–8 · 0.8 mi

District: Stoneham School District

Neighborhood · ZIP 02180These 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.86
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 100.79

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.5%
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.24,074
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,575 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$121,424
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,493
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

21 Emerald Ct 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 81% of homes in Stoneham 02180
  • Among the highest price per square foot in Stoneham 02180
  • Smaller than 97% of homes in Stoneham 02180

What homes are worth in Stoneham 02180

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

This home
$351K$1.4M

This home is worth more than 19% of homes in Stoneham 02180.

How it measures up in Stoneham 02180

The dot is this home. The mark in the middle is the typical home in Stoneham 02180.

Estimated value$543,192
CheaperTypical $774,880Pricier

Pricier than 19% of homes nearby

Price per ft²$730
CheaperTypical $436Pricier

Pricier than almost all homes nearby

Living area744 ft²
SmallerTypical 1,846 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.22 ac
SmallerTypical 0.24 acBigger

Bigger than 36% of homes nearby

Year built1950
OlderTypical 1957Newer

Newer than 39% of homes nearby

How 21 Emerald Ct ranks against every home in each area.
MeasureThis homeStoneham 02180Middlesex County
Estimated valuepricier than$543,19219% of homes19% of homes
Price per ft²pricier than$730almost all homes88% of homes
Living areabigger than744 ft²3% of homes4% of homes
Lot sizebigger than0.22 ac36% of homes38% of homes
Year builtnewer than195039% of homes41% of homes

About 21 Emerald Ct

How much is 21 Emerald Ct, Stoneham, MA worth?

The TopHap Estimate for 21 Emerald Ct, Stoneham, MA is $543,192 as of Sep 24, 2026. The likely range is $465,338 to $621,046. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Emerald Ct, Stoneham, MA last sell?

21 Emerald Ct, Stoneham, MA last sold on Oct 29, 2004 for $339,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Emerald Ct, Stoneham, MA?

21 Emerald Ct, Stoneham, MA has 2 bedrooms, 1 bathrooms, 744 square feet of living space and a 0.23-acre lot.

When was 21 Emerald Ct, Stoneham, MA built?

21 Emerald Ct, Stoneham, MA was built in 1950, making it 76 years old. It is a ranch home. The building has 1 story.

What schools serve 21 Emerald Ct, Stoneham, MA?

21 Emerald Ct, Stoneham, MA is assigned to Stoneham High School (high), rated B+; Colonial Park Elementary School (elementary), rated B+; Central Middle School (middle), rated C. All sit in Stoneham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Emerald Ct, Stoneham, MA compare to other homes in Stoneham 02180?

Among the 7,341 homes in Stoneham 02180, it is worth more than 19% of them ($543,192 against a typical $774,880), its price per square foot is higher than almost all of them ($730 against a typical $436), it is bigger than 3% of them (744 ft² against a typical 1,846 ft²), its lot is bigger than 36% of them (0.22 ac against a typical 0.24 ac) and it is newer than 39% of them (1950 against a typical 1957). Measured against all of Middlesex County, it is worth more than 19% 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 Emerald Ct, Stoneham, MA?

The 2025 property tax bill for 21 Emerald Ct, Stoneham, MA was $5,473. The county assessed it at $535,000.

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