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Single Family ResidenceResidential
$634,681$484 / 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 92How 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 $135,000 on Apr 1, 2004

21 GASTON ST

PELHAM, NH 03076
3
Beds
1.5
Baths
1,312 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.
0.28 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.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$635K
$587K low$683K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$135,000 · Apr 1, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,770 (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.$511,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$268,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$243,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$608,760

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.57
92
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
58
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.
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.136 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.Colonial
CountyHILLSBOROUGH
Lot (acres)The size of the land the home sits on, from county records.0.28
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.DeckBoat access

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
Pelham Elementary SchoolB+
Elementary · Grades PK–5 · 1.8 mi
M
Pelham Memorial SchoolD
Middle · Grades 6–8 · 1.8 mi
H
Pelham High SchoolD+
High · Grades 9–12 · 2.0 mi

District: Pelham School District

Neighborhood · ZIP 03076These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.88

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.14,587
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.543 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$128,916
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$141,684
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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 Gaston 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 72% of homes in Hillsborough County
  • Costs more per square foot than 97% of homes in Hillsborough County
  • Smaller than 84% of homes in Pelham 03076
  • Has a smaller lot than 96% of homes in Pelham 03076
  • Newer than 96% of homes in Hillsborough County

What homes are worth in Pelham 03076

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

This home
$367K$1.1M

This home is worth more than 46% of homes in Pelham 03076.

How it measures up in Pelham 03076

The dot is this home. The mark in the middle is the typical home in Pelham 03076.

Estimated value$634,681
CheaperTypical $652,537Pricier

Pricier than 46% of homes nearby

Price per ft²$484
CheaperTypical $333Pricier

Pricier than 95% of homes nearby

Living area1,312 ft²
SmallerTypical 2,036 ft²Bigger

Bigger than 16% of homes nearby

Lot size0.28 ac
SmallerTypical 1.2 acBigger

Bigger than 4% of homes nearby

Year built2017
OlderTypical 1987Newer

Newer than 91% of homes nearby

How 21 Gaston St ranks against every home in each area.
MeasureThis homePelham 03076Hillsborough County
Estimated valuepricier than$634,68146% of homes72% of homes
Price per ft²pricier than$48495% of homes97% of homes
Living areabigger than1,312 ft²16% of homes28% of homes
Lot sizebigger than0.28 ac4% of homes33% of homes
Year builtnewer than201791% of homes96% of homes

About 21 Gaston St

How much is 21 Gaston St, Pelham, NH worth?

The TopHap Estimate for 21 Gaston St, Pelham, NH is $634,681 as of Sep 24, 2026. The likely range is $586,581 to $682,781. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Gaston St, Pelham, NH last sell?

21 Gaston St, Pelham, NH last sold on Apr 1, 2004 for $135,000, according to the county's recorded deed.

How big is 21 Gaston St, Pelham, NH?

21 Gaston St, Pelham, NH has 3 bedrooms, 1.5 bathrooms, 1,312 square feet of living space and a 0.28-acre lot.

When was 21 Gaston St, Pelham, NH built?

21 Gaston St, Pelham, NH was built in 2017, making it 9 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 Gaston St, Pelham, NH?

21 Gaston St, Pelham, NH is assigned to Pelham Elementary School (elementary), rated B+; Pelham Memorial School (middle), rated D; Pelham High School (high), rated D+. All sit in Pelham School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Gaston St, Pelham, NH compare to other homes in Pelham 03076?

Among the 5,012 homes in Pelham 03076, it is worth more than 46% of them ($634,681 against a typical $652,537), its price per square foot is higher than 95% of them ($484 against a typical $333), it is bigger than 16% of them (1,312 ft² against a typical 2,036 ft²), its lot is bigger than 4% of them (0.28 ac against a typical 1.2 ac) and it is newer than 91% of them (2017 against a typical 1987). Measured against all of Hillsborough County, it is worth more than 72% 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 Gaston St, Pelham, NH?

The 2025 property tax bill for 21 Gaston St, Pelham, NH was $9,770. The county assessed it at $511,800.

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