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Single Family ResidenceResidential
$885,000$296 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $235,000 on Sep 16, 2015

820 MAIN ST

ANDOVER, NH 03216
2
Beds
2.5
Baths
2,992 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.
93.2 ac
Lot SizeThe size of the land the home sits on, from county records.
2016
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$885K
$846K low$924K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$235,000 · Sep 16, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,338 (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.$637,429 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$129,329
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$508,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$636,953
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$465,785

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
100
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
53
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
96
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
33
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.197 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.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.Cape Cod
CountyMERRIMACK
Lot (acres)The size of the land the home sits on, from county records.93.20
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Radiant
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
ViewThe type of view from the property, or another feature of the site that affects value.Waterfront-Not Specified

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Andover Elementary / Middle SchoolC+
Elementary · Grades KG–8 · 2.9 mi
H
Merrimack Valley High SchoolC-
High · Grades 9–12 · 17.9 mi

District: Merrimack Valley School District

Neighborhood · ZIP 03216These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.108

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
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.0.7%
PopulationHow many people live in this area.2,506
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.60 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$90,687
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$101,922
Average tempThe average temperature here across a full year.45°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

820 Main 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 97% of homes in Andover 03216
  • Costs more per square foot than 80% of homes in Andover 03216
  • Bigger than 87% of homes in Merrimack County
  • Among the largest lots in Merrimack County
  • Newer than 96% of homes in Andover 03216

What homes are worth in Andover 03216

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

This home
$228K$933K

This home is worth more than 97% of homes in Andover 03216.

How it measures up in Andover 03216

The dot is this home. The mark in the middle is the typical home in Andover 03216.

Estimated value$885,000
CheaperTypical $426,775Pricier

Pricier than 97% of homes nearby

Price per ft²$296
CheaperTypical $228Pricier

Pricier than 80% of homes nearby

Living area2,992 ft²
SmallerTypical 1,894 ft²Bigger

Bigger than 85% of homes nearby

Lot size93.2 ac
SmallerTypical 2.2 acBigger

Bigger than 98% of homes nearby

Year built2016
OlderTypical 1973Newer

Newer than 96% of homes nearby

How 820 Main St ranks against every home in each area.
MeasureThis homeAndover 03216Merrimack County
Estimated valuepricier than$885,00097% of homes94% of homes
Price per ft²pricier than$29680% of homes60% of homes
Living areabigger than2,992 ft²85% of homes87% of homes
Lot sizebigger than93.2 ac98% of homesalmost all homes
Year builtnewer than201696% of homes94% of homes

About 820 Main St

How much is 820 Main St, Andover, NH worth?

The TopHap Estimate for 820 Main St, Andover, NH is $885,000 as of Oct 21, 2026. The likely range is $845,854 to $924,146. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 820 Main St, Andover, NH last sell?

820 Main St, Andover, NH last sold on Sep 16, 2015 for $235,000, according to the county's recorded deed.

How big is 820 Main St, Andover, NH?

820 Main St, Andover, NH has 2 bedrooms, 2.5 bathrooms, 2,992 square feet of living space and a 93.20-acre lot.

When was 820 Main St, Andover, NH built?

820 Main St, Andover, NH was built in 2016, making it 10 years old. It is a cape cod home. The building has 2 stories.

What schools serve 820 Main St, Andover, NH?

820 Main St, Andover, NH is assigned to Andover Elementary / Middle School (elementary), rated C+; Merrimack Valley High School (high), rated C-. All sit in Merrimack Valley School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 820 Main St, Andover, NH compare to other homes in Andover 03216?

Among the 1,074 homes in Andover 03216, it is worth more than 97% of them ($885,000 against a typical $426,775), its price per square foot is higher than 80% of them ($296 against a typical $228), it is bigger than 85% of them (2,992 ft² against a typical 1,894 ft²), its lot is bigger than 98% of them (93.2 ac against a typical 2.2 ac) and it is newer than 96% of them (2016 against a typical 1973). Measured against all of Merrimack County, it is worth more than 94% 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 820 Main St, Andover, NH?

The 2025 property tax bill for 820 Main St, Andover, NH was $9,338. The county assessed it at $637,429.

More homes on Main St

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