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Single Family ResidenceResidential
$817,503$358 / 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 $561,680 on Jul 3, 2017

100 SUMMER ST

AMHERST, MA 01002
4
Beds
3
Baths
2,283 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.
0.46 ac
Lot SizeThe size of the land the home sits on, from county records.
2017
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$818K
$740K low$895K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$561,680 · Jul 3, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$126 (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.$699,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$159,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$540,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$586,720

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.45
54
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
87
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
10
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%

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
CountyHAMPSHIRE
Lot (acres)The size of the land the home sits on, from county records.0.46
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

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
Wildwood Elementary SchoolA-
Elementary · Grades KG–6 · 2.0 mi
M
Amherst - Pelham Regional Middle SchoolB+
Middle · Grades 7–8 · 2.2 mi
H
Amherst - Pelham Regional High SchoolA-
High · Grades 9–12 · 2.4 mi

District: Amherst-Pelham School District

Neighborhood · ZIP 01002These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.55

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.29,604
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.523 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$84,336
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$108,051
Average tempThe average temperature here across a full year.46°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

100 Summer 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 96% of homes in Hampshire County
  • Costs more per square foot than 86% of homes in Hampshire County
  • Bigger than 77% of homes in Hampshire County
  • Among the newest homes in Amherst 01002

What homes are worth in Amherst 01002

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

This home
$241K$1.1M

This home is worth more than 88% of homes in Amherst 01002.

How it measures up in Amherst 01002

The dot is this home. The mark in the middle is the typical home in Amherst 01002.

Estimated value$817,503
CheaperTypical $523,057Pricier

Pricier than 88% of homes nearby

Price per ft²$358
CheaperTypical $316Pricier

Pricier than 75% of homes nearby

Living area2,283 ft²
SmallerTypical 1,714 ft²Bigger

Bigger than 73% of homes nearby

Lot size0.46 ac
SmallerTypical 0.56 acBigger

Bigger than 38% of homes nearby

Year built2017
OlderTypical 1969Newer

Newer than almost all homes nearby

How 100 Summer St ranks against every home in each area.
MeasureThis homeAmherst 01002Hampshire County
Estimated valuepricier than$817,50388% of homes96% of homes
Price per ft²pricier than$35875% of homes86% of homes
Living areabigger than2,283 ft²73% of homes77% of homes
Lot sizebigger than0.46 ac38% of homes37% of homes
Year builtnewer than2017almost all homes98% of homes

About 100 Summer St

How much is 100 Summer St, Amherst, MA worth?

The TopHap Estimate for 100 Summer St, Amherst, MA is $817,503 as of Aug 30, 2026. The likely range is $740,228 to $894,778. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 Summer St, Amherst, MA last sell?

100 Summer St, Amherst, MA last sold on Jul 3, 2017 for $561,680, according to the county's recorded deed.

How big is 100 Summer St, Amherst, MA?

100 Summer St, Amherst, MA has 4 bedrooms, 3 bathrooms, 2,283 square feet of living space and a 0.46-acre lot.

When was 100 Summer St, Amherst, MA built?

100 Summer St, Amherst, MA was built in 2017, making it 9 years old. The building has 2 stories.

What schools serve 100 Summer St, Amherst, MA?

100 Summer St, Amherst, MA is assigned to Wildwood Elementary School (elementary), rated A-; Amherst - Pelham Regional Middle School (middle), rated B+; Amherst - Pelham Regional High School (high), rated A-. All sit in Amherst-Pelham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100 Summer St, Amherst, MA compare to other homes in Amherst 01002?

Among the 6,302 homes in Amherst 01002, it is worth more than 88% of them ($817,503 against a typical $523,057), its price per square foot is higher than 75% of them ($358 against a typical $316), it is bigger than 73% of them (2,283 ft² against a typical 1,714 ft²), its lot is bigger than 38% of them (0.46 ac against a typical 0.56 ac) and it is newer than almost all of them (2017 against a typical 1969). Measured against all of Hampshire County, it is worth more than 96% 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 100 Summer St, Amherst, MA?

The 2025 property tax bill for 100 Summer St, Amherst, MA was $126. The county assessed it at $699,500.

More homes on Summer St

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Assigned schools

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