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Single Family ResidenceResidential
$429,900$215 / 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 Sep 24, 2026
Last sold for $245,000 on Mar 3, 2021

51 MAIN ST

MARLBOROUGH, NH 03455
3
Beds
1.5
Baths
2,000 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.
2.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1953
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$430K
$412K low$448K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$245,000 · Mar 3, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,941 (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.$254,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$65,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$188,400

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.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.Ranch
CountyCHESHIRE
Lot (acres)The size of the land the home sits on, from county records.2.10
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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(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
Marlborough SchoolB-
Elementary · Grades PK–8 · 0.4 mi
H
Keene High SchoolB-
High · Grades 9–12 · 5.2 mi

District: Marlborough School District

Neighborhood · ZIP 03455These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.65

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.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.2%
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.2,270
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.93 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,841
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,181
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.46 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

51 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 71% of homes in Marlborough 03455
  • Costs less per square foot than 66% of homes in Cheshire County
  • Bigger than 68% of homes in Marlborough 03455
  • Older than 66% of homes in Cheshire County

What homes are worth in Marlborough 03455

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

This home
$211K$950K

This home is worth more than 71% of homes in Marlborough 03455.

How it measures up in Marlborough 03455

The dot is this home. The mark in the middle is the typical home in Marlborough 03455.

Estimated value$429,900
CheaperTypical $351,310Pricier

Pricier than 71% of homes nearby

Price per ft²$215
CheaperTypical $234Pricier

Pricier than 38% of homes nearby

Living area2,000 ft²
SmallerTypical 1,594 ft²Bigger

Bigger than 68% of homes nearby

Lot size2.1 ac
SmallerTypical 1.92 acBigger

Bigger than 55% of homes nearby

Year built1953
OlderTypical 1966Newer

Newer than 43% of homes nearby

How 51 Main St ranks against every home in each area.
MeasureThis homeMarlborough 03455Cheshire County
Estimated valuepricier than$429,90071% of homes57% of homes
Price per ft²pricier than$21538% of homes34% of homes
Living areabigger than2,000 ft²68% of homes65% of homes
Lot sizebigger than2.1 ac55% of homes63% of homes
Year builtnewer than195343% of homes34% of homes

About 51 Main St

How much is 51 Main St, Marlborough, NH worth?

The TopHap Estimate for 51 Main St, Marlborough, NH is $429,900 as of Sep 24, 2026. The likely range is $412,033 to $447,767. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 51 Main St, Marlborough, NH last sell?

51 Main St, Marlborough, NH last sold on Mar 3, 2021 for $245,000, according to the county's recorded deed.

How big is 51 Main St, Marlborough, NH?

51 Main St, Marlborough, NH has 3 bedrooms, 1.5 bathrooms, 2,000 square feet of living space and a 2.10-acre lot.

When was 51 Main St, Marlborough, NH built?

51 Main St, Marlborough, NH was built in 1953, making it 73 years old. It is a ranch home. The building has 1 story.

What schools serve 51 Main St, Marlborough, NH?

51 Main St, Marlborough, NH is assigned to Marlborough School (elementary), rated B-; Keene High School (high), rated B-. All sit in Marlborough School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 51 Main St, Marlborough, NH compare to other homes in Marlborough 03455?

Among the 812 homes in Marlborough 03455, it is worth more than 71% of them ($429,900 against a typical $351,310), its price per square foot is higher than 38% of them ($215 against a typical $234), it is bigger than 68% of them (2,000 ft² against a typical 1,594 ft²), its lot is bigger than 55% of them (2.1 ac against a typical 1.92 ac) and it is newer than 43% of them (1953 against a typical 1966). Measured against all of Cheshire County, it is worth more than 57% 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 51 Main St, Marlborough, NH?

The 2025 property tax bill for 51 Main St, Marlborough, NH was $7,941. The county assessed it at $254,200.

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Assigned schools

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