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Single Family ResidenceResidential
$557,675$266 / 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 87How 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 $270,000 on Nov 24, 2015

20 THORNTON ST

DERRY, NH 03038
4
Beds
3.5
Baths
2,093 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.
0.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1820
Year BuiltThe year the home was originally built, according to county records.
1
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

$558K
$487K low$629K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$270,000 · Nov 24, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,522 (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.$501,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$193,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$308,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$534,470

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.51
83
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
55
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
88
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.24 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

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.Conventional
CountyROCKINGHAM
Lot (acres)The size of the land the home sits on, from county records.0.50
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

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.

H
Pinkerton AcademyD-
High · Grades 9–12 · 0.4 mi
E
Derry Village Elementary SchoolB-
Elementary · Grades KG–5 · 0.5 mi
M
West Running Brook Middle SchoolC+
Middle · Grades 6–8 · 0.6 mi

District: Derry Cooperative School District

Neighborhood · ZIP 03038These 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.103
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.98
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.90

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.35,277
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.967 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$99,607
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$116,220
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

20 Thornton 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.

  • Costs less per square foot than 93% of homes in Derry 03038
  • Bigger than 83% of homes in Derry 03038
  • Has a smaller lot than 69% of homes in Derry 03038
  • Among the oldest homes in Derry 03038

What homes are worth in Derry 03038

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

This home
$215K$940K

This home is worth more than 60% of homes in Derry 03038.

How it measures up in Derry 03038

The dot is this home. The mark in the middle is the typical home in Derry 03038.

Estimated value$557,675
CheaperTypical $520,001Pricier

Pricier than 60% of homes nearby

Price per ft²$266
CheaperTypical $350Pricier

Pricier than 7% of homes nearby

Living area2,093 ft²
SmallerTypical 1,364 ft²Bigger

Bigger than 83% of homes nearby

Lot size0.5 ac
SmallerTypical 1 acBigger

Bigger than 31% of homes nearby

Year built1820
OlderTypical 1984Newer

Older than almost all homes nearby

How 20 Thornton St ranks against every home in each area.
MeasureThis homeDerry 03038Rockingham County
Estimated valuepricier than$557,67560% of homes36% of homes
Price per ft²pricier than$2667% of homes16% of homes
Living areabigger than2,093 ft²83% of homes63% of homes
Lot sizebigger than0.5 ac31% of homes34% of homes
Year builtnewer than1820almost no homes2% of homes

About 20 Thornton St

How much is 20 Thornton St, Derry, NH worth?

The TopHap Estimate for 20 Thornton St, Derry, NH is $557,675 as of Sep 24, 2026. The likely range is $486,692 to $628,658. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Thornton St, Derry, NH last sell?

20 Thornton St, Derry, NH last sold on Nov 24, 2015 for $270,000, according to the county's recorded deed.

How big is 20 Thornton St, Derry, NH?

20 Thornton St, Derry, NH has 4 bedrooms, 3.5 bathrooms, 2,093 square feet of living space and a 0.50-acre lot.

When was 20 Thornton St, Derry, NH built?

20 Thornton St, Derry, NH was built in 1820, making it 206 years old. It is a conventional home. The building has 1 story.

What schools serve 20 Thornton St, Derry, NH?

20 Thornton St, Derry, NH is assigned to Pinkerton Academy (high), rated D-; Derry Village Elementary School (elementary), rated B-; West Running Brook Middle School (middle), rated C+. All sit in Derry Cooperative School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20 Thornton St, Derry, NH compare to other homes in Derry 03038?

Among the 11,200 homes in Derry 03038, it is worth more than 60% of them ($557,675 against a typical $520,001), its price per square foot is higher than 7% of them ($266 against a typical $350), it is bigger than 83% of them (2,093 ft² against a typical 1,364 ft²), its lot is bigger than 31% of them (0.5 ac against a typical 1 ac) and it is newer than almost none of them (1820 against a typical 1984). Measured against all of Rockingham County, it is worth more than 36% 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 20 Thornton St, Derry, NH?

The 2025 property tax bill for 20 Thornton St, Derry, NH was $9,522. The county assessed it at $501,400.

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