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Single Family ResidenceResidential
$509,630$292 / 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 97How 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 $269,000 on Feb 25, 2019

451 PORTLAND AVE

ROLLINSFORD, NH 03869
3
Beds
2.5
Baths
1,747 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.
2.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1969
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$510K
$492K low$527K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$269,000 · Feb 25, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,269 (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.$382,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$183,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$198,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$414,960

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.14 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.Cape Cod
CountySTRAFFORD
Lot (acres)The size of the land the home sits on, from county records.2.13
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Rollinsford Grade SchoolC+
Elementary · Grades KG–6 · 2.3 mi
H
Marshwood High SchoolA
High · Grades 9–12 · 2.9 mi
M
Marshwood Middle SchoolA
Middle · Grades 7–8 · 4.7 mi

District: School Administrative District 35

Neighborhood · ZIP 03869These 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.119
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.100
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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.2%
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.2,631
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.390 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,780
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$111,833
Average tempThe average temperature here across a full year.48°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

451 Portland 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.

  • Has a bigger lot than 80% of homes in Rollinsford 03869

What homes are worth in Rollinsford 03869

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

This home
$221K$1.3M

This home is worth more than 49% of homes in Rollinsford 03869.

How it measures up in Rollinsford 03869

The dot is this home. The mark in the middle is the typical home in Rollinsford 03869.

Estimated value$509,630
CheaperTypical $512,799Pricier

Pricier than 49% of homes nearby

Price per ft²$292
CheaperTypical $278Pricier

Pricier than 57% of homes nearby

Living area1,747 ft²
SmallerTypical 2,064 ft²Bigger

Bigger than 36% of homes nearby

Lot size2.13 ac
SmallerTypical 0.69 acBigger

Bigger than 80% of homes nearby

Year built1969
OlderTypical 1967Newer

Newer than 53% of homes nearby

How 451 Portland Ave ranks against every home in each area.
MeasureThis homeRollinsford 03869Strafford County
Estimated valuepricier than$509,63049% of homes51% of homes
Price per ft²pricier than$29257% of homes45% of homes
Living areabigger than1,747 ft²36% of homes56% of homes
Lot sizebigger than2.13 ac80% of homes78% of homes
Year builtnewer than196953% of homes36% of homes

About 451 Portland Ave

How much is 451 Portland Ave, Rollinsford, NH worth?

The TopHap Estimate for 451 Portland Ave, Rollinsford, NH is $509,630 as of Oct 21, 2026. The likely range is $492,418 to $526,842. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 451 Portland Ave, Rollinsford, NH last sell?

451 Portland Ave, Rollinsford, NH last sold on Feb 25, 2019 for $269,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 451 Portland Ave, Rollinsford, NH?

451 Portland Ave, Rollinsford, NH has 3 bedrooms, 2.5 bathrooms, 1,747 square feet of living space and a 2.13-acre lot.

When was 451 Portland Ave, Rollinsford, NH built?

451 Portland Ave, Rollinsford, NH was built in 1969, making it 57 years old. It is a cape cod home. The building has 2 stories.

What schools serve 451 Portland Ave, Rollinsford, NH?

451 Portland Ave, Rollinsford, NH is assigned to Rollinsford Grade School (elementary), rated C+; Marshwood High School (high), rated A; Marshwood Middle School (middle), rated A. All sit in School Administrative District 35. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 451 Portland Ave, Rollinsford, NH compare to other homes in Rollinsford 03869?

Among the 876 homes in Rollinsford 03869, it is worth more than 49% of them ($509,630 against a typical $512,799), its price per square foot is higher than 57% of them ($292 against a typical $278), it is bigger than 36% of them (1,747 ft² against a typical 2,064 ft²), its lot is bigger than 80% of them (2.13 ac against a typical 0.69 ac) and it is newer than 53% of them (1969 against a typical 1967). Measured against all of Strafford County, it is worth more than 51% 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 451 Portland Ave, Rollinsford, NH?

The 2025 property tax bill for 451 Portland Ave, Rollinsford, NH was $6,269. The county assessed it at $382,000.

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