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Single Family ResidenceResidential
$1,383,134$1,037 / 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

31 EMERALD ST

NEWTON, MA 02458
3
Beds
1
Baths
1,334 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
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

$1.4M
$1.2M low$1.6M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,809 (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.$1,012,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$925,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$86,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$741,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,104,660

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.23 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
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.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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.

E
Lincoln-Eliot Elementary SchoolB+
Elementary · Grades KG–5 · 0.4 mi
H
Newton North High SchoolA+
High · Grades 9–12 · 0.8 mi
M
Bigelow Middle SchoolA
Middle · Grades 6–8 · 1.1 mi

District: Newton School District

Neighborhood · ZIP 02458These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.70

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.4.2%
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.14,080
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,870 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$143,714
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$186,633
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 Emerald 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.

  • Worth more than 86% of homes in Middlesex County
  • Among the highest price per square foot in Nonantum
  • Smaller than 84% of homes in Newton 02458
  • Has a bigger lot than 75% of homes in Nonantum
  • Older than 93% of homes in Middlesex County

What homes are worth in Newton 02458

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

This home
$456K$4.2M

This home is worth more than 56% of homes in Newton 02458.

How it measures up in Newton 02458

The dot is this home. The mark in the middle is the typical home in Newton 02458.

Estimated value$1,383,134
CheaperTypical $1,270,575Pricier

Pricier than 56% of homes nearby

Price per ft²$1037
CheaperTypical $649Pricier

Pricier than 98% of homes nearby

Living area1,334 ft²
SmallerTypical 2,257 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.23 ac
SmallerTypical 0.19 acBigger

Bigger than 64% of homes nearby

Year built1890
OlderTypical 1920Newer

Newer than 25% of homes nearby

How 31 Emerald St ranks against every home in each area.
MeasureThis homeNonantumNewton 02458Middlesex County
Estimated valuepricier than$1,383,13479% of homes56% of homes86% of homes
Price per ft²pricier than$1037almost all homes98% of homes98% of homes
Living areabigger than1,334 ft²21% of homes16% of homes26% of homes
Lot sizebigger than0.23 ac75% of homes64% of homes40% of homes
Year builtnewer than189023% of homes25% of homes7% of homes

About 31 Emerald St

How much is 31 Emerald St, Newton, MA worth?

The TopHap Estimate for 31 Emerald St, Newton, MA is $1,383,134 as of Sep 24, 2026. The likely range is $1,186,814 to $1,579,454. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 Emerald St, Newton, MA last sell?

31 Emerald St, Newton, MA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 31 Emerald St, Newton, MA?

31 Emerald St, Newton, MA has 3 bedrooms, 1 bathrooms, 1,334 square feet of living space and a 0.23-acre lot.

When was 31 Emerald St, Newton, MA built?

31 Emerald St, Newton, MA was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 31 Emerald St, Newton, MA?

31 Emerald St, Newton, MA is assigned to Lincoln-Eliot Elementary School (elementary), rated B+; Newton North High School (high), rated A+; Bigelow Middle School (middle), rated A. All sit in Newton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 31 Emerald St, Newton, MA compare to other homes in Newton 02458?

Among the 3,665 homes in Newton 02458, it is worth more than 56% of them ($1,383,134 against a typical $1,270,575), its price per square foot is higher than 98% of them ($1037 against a typical $649), it is bigger than 16% of them (1,334 ft² against a typical 2,257 ft²), its lot is bigger than 64% of them (0.23 ac against a typical 0.19 ac) and it is newer than 25% of them (1890 against a typical 1920). Measured against all of Middlesex County, it is worth more than 86% 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 Emerald St, Newton, MA?

The 2026 property tax bill for 31 Emerald St, Newton, MA was $9,809. The county assessed it at $1,012,300.

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