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Single Family ResidenceResidential
$516,766$303 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

511 PORTLAND ST

ROCHESTER, NH 03867
3
Beds
1.5
Baths
1,704 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.
0.6 ac
Lot SizeThe size of the land the home sits on, from county records.
1850
Year BuiltThe year the home was originally built, according to county records.
2
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

$517K
$485K low$548K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,941 (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.$388,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$101,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$286,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$215,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$444,125

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
CountySTRAFFORD
Lot (acres)The size of the land the home sits on, from county records.0.60
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.Forced Air With Air Conditioning
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Basement
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.

H
Spaulding High SchoolC+
High · Grades 9–12 · 1.0 mi
E
Salmon Falls Road School
Elementary · Grades KG–5 · 2.0 mi
M
Rochester Middle SchoolD+
Middle · Grades 6–8 · 2.1 mi

District: Rochester School District

Neighborhood · ZIP 03867These 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.105
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.106

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.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.8%
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.22,565
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.760 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$75,085
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,264
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.48 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

511 Portland 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 81% of homes in Rochester 03867
  • Costs more per square foot than 66% of homes in Rochester 03867
  • Bigger than 68% of homes in Rochester 03867
  • Has a bigger lot than 66% of homes in Rochester 03867
  • Among the oldest homes in Rochester 03867

What homes are worth in Rochester 03867

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

This home
$207K$712K

This home is worth more than 81% of homes in Rochester 03867.

How it measures up in Rochester 03867

The dot is this home. The mark in the middle is the typical home in Rochester 03867.

Estimated value$516,766
CheaperTypical $401,441Pricier

Pricier than 81% of homes nearby

Price per ft²$303
CheaperTypical $273Pricier

Pricier than 66% of homes nearby

Living area1,704 ft²
SmallerTypical 1,384 ft²Bigger

Bigger than 68% of homes nearby

Lot size0.6 ac
SmallerTypical 0.36 acBigger

Bigger than 66% of homes nearby

Year built1850
OlderTypical 1976Newer

Older than almost all homes nearby

How 511 Portland St ranks against every home in each area.
MeasureThis homeRochester 03867Strafford County
Estimated valuepricier than$516,76681% of homes54% of homes
Price per ft²pricier than$30366% of homes53% of homes
Living areabigger than1,704 ft²68% of homes54% of homes
Lot sizebigger than0.6 ac66% of homes47% of homes
Year builtnewer than1850almost no homes3% of homes

About 511 Portland St

How much is 511 Portland St, Rochester, NH worth?

The TopHap Estimate for 511 Portland St, Rochester, NH is $516,766 as of Aug 30, 2026. The likely range is $485,222 to $548,310. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 511 Portland St, Rochester, NH last sell?

511 Portland St, Rochester, NH last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 511 Portland St, Rochester, NH?

511 Portland St, Rochester, NH has 3 bedrooms, 1.5 bathrooms, 1,704 square feet of living space and a 0.60-acre lot.

When was 511 Portland St, Rochester, NH built?

511 Portland St, Rochester, NH was built in 1850, making it 176 years old. It is a conventional home. The building has 2 stories.

What schools serve 511 Portland St, Rochester, NH?

511 Portland St, Rochester, NH is assigned to Spaulding High School (high), rated C+; Salmon Falls Road School (elementary); Rochester Middle School (middle), rated D+. All sit in Rochester School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 511 Portland St, Rochester, NH compare to other homes in Rochester 03867?

Among the 7,496 homes in Rochester 03867, it is worth more than 81% of them ($516,766 against a typical $401,441), its price per square foot is higher than 66% of them ($303 against a typical $273), it is bigger than 68% of them (1,704 ft² against a typical 1,384 ft²), its lot is bigger than 66% of them (0.6 ac against a typical 0.36 ac) and it is newer than almost none of them (1850 against a typical 1976). Measured against all of Strafford County, it is worth more than 54% 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 511 Portland St, Rochester, NH?

The 2025 property tax bill for 511 Portland St, Rochester, NH was $5,941. The county assessed it at $388,300.

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Assigned schools

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