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Single Family ResidenceResidential
$906,013$521 / 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 78How 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

100 PORTSMOUTH AVE

GREENLAND, NH 03840
3
Beds
2
Baths
1,738 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.
0.79 ac
Lot SizeThe size of the land the home sits on, from county records.
1971
Year BuiltThe year the home was originally built, according to county records.
1
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

$906K
$709K low$1.1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,346 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$488,500 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$247,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$240,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$697,110

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
CountyROCKINGHAM
Lot (acres)The size of the land the home sits on, from county records.0.79
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
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(2)

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
Greenland Central SchoolA
Elementary · Grades KG–8 · 1.3 mi
H
Portsmouth High SchoolA
High · Grades 9–12 · 3.0 mi

District: Portsmouth School District

Neighborhood · ZIP 03840These 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.81
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.105

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.38%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.9%
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.4,170
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.316 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$136,966
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$143,735
Average tempThe average temperature here across a full year.48°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.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

100 Portsmouth Ave 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 83% of homes in Rockingham County
  • Costs more per square foot than 88% of homes in Greenland 03840
  • Smaller than 66% of homes in Greenland 03840
  • Has a smaller lot than 67% of homes in Greenland 03840
  • Older than 72% of homes in Greenland 03840

What homes are worth in Greenland 03840

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

This home
$426K$1.9M

This home is worth more than 57% of homes in Greenland 03840.

How it measures up in Greenland 03840

The dot is this home. The mark in the middle is the typical home in Greenland 03840.

Estimated value$906,013
CheaperTypical $831,748Pricier

Pricier than 57% of homes nearby

Price per ft²$521
CheaperTypical $406Pricier

Pricier than 88% of homes nearby

Living area1,738 ft²
SmallerTypical 2,122 ft²Bigger

Bigger than 34% of homes nearby

Lot size0.79 ac
SmallerTypical 1.38 acBigger

Bigger than 33% of homes nearby

Year built1971
OlderTypical 1987Newer

Newer than 28% of homes nearby

How 100 Portsmouth Ave ranks against every home in each area.
MeasureThis homeGreenland 03840Rockingham County
Estimated valuepricier than$906,01357% of homes83% of homes
Price per ft²pricier than$52188% of homes86% of homes
Living areabigger than1,738 ft²34% of homes49% of homes
Lot sizebigger than0.79 ac33% of homes44% of homes
Year builtnewer than197128% of homes31% of homes

About 100 Portsmouth Ave

How much is 100 Portsmouth Ave, Greenland, NH worth?

The TopHap Estimate for 100 Portsmouth Ave, Greenland, NH is $906,013 as of Oct 21, 2026. The likely range is $709,052 to $1,102,974. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 Portsmouth Ave, Greenland, NH last sell?

100 Portsmouth Ave, Greenland, NH last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 100 Portsmouth Ave, Greenland, NH?

100 Portsmouth Ave, Greenland, NH has 3 bedrooms, 2 bathrooms, 1,738 square feet of living space and a 0.79-acre lot.

When was 100 Portsmouth Ave, Greenland, NH built?

100 Portsmouth Ave, Greenland, NH was built in 1971, making it 55 years old. It is a ranch home. The building has 1 story.

What schools serve 100 Portsmouth Ave, Greenland, NH?

100 Portsmouth Ave, Greenland, NH is assigned to Greenland Central School (elementary), rated A; Portsmouth High School (high), rated A. All sit in Portsmouth School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100 Portsmouth Ave, Greenland, NH compare to other homes in Greenland 03840?

Among the 1,545 homes in Greenland 03840, it is worth more than 57% of them ($906,013 against a typical $831,748), its price per square foot is higher than 88% of them ($521 against a typical $406), it is bigger than 34% of them (1,738 ft² against a typical 2,122 ft²), its lot is bigger than 33% of them (0.79 ac against a typical 1.38 ac) and it is newer than 28% of them (1971 against a typical 1987). Measured against all of Rockingham County, it is worth more than 83% 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 Portsmouth Ave, Greenland, NH?

The 2024 property tax bill for 100 Portsmouth Ave, Greenland, NH was $6,346. The county assessed it at $488,500.

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