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Single Family ResidenceResidential
$401,628$254 / 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 Sep 24, 2026
Last sold for $285,000 on Jun 22, 2022

18 MILL ST

ROCHESTER, NH 03868
3
Beds
1.5
Baths
1,579 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.
0.49 ac
Lot SizeThe size of the land the home sits on, from county records.
1902
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

$402K
$376K low$428K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$285,000 · Jun 22, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,783 (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.$378,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$118,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$259,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$192,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$340,955

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.52
90
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
6
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
54
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
91
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
20
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.124 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.1 percent flood zone

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.Conventional
CountySTRAFFORD
Lot (acres)The size of the land the home sits on, from county records.0.49
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.Steam
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

E
East Rochester Elementary SchoolC-
Elementary · Grades KG–5 · 0.6 mi
H
Spaulding High SchoolC+
High · Grades 9–12 · 2.5 mi
M
Rochester Middle SchoolD+
Middle · Grades 6–8 · 3.9 mi

District: Rochester School District

Neighborhood · ZIP 03868These 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.103
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 100.104

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.0%
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.7,253
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.816 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$79,237
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,077
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

18 Mill 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 less than 78% of homes in Strafford County
  • Costs less per square foot than 80% of homes in Rochester 03868
  • Bigger than 65% of homes in Rochester 03868
  • Older than 92% of homes in Rochester 03868

What homes are worth in Rochester 03868

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

This home
$279K$723K

This home is worth more than 36% of homes in Rochester 03868.

How it measures up in Rochester 03868

The dot is this home. The mark in the middle is the typical home in Rochester 03868.

Estimated value$401,628
CheaperTypical $433,652Pricier

Pricier than 36% of homes nearby

Price per ft²$254
CheaperTypical $306Pricier

Pricier than 20% of homes nearby

Living area1,579 ft²
SmallerTypical 1,399 ft²Bigger

Bigger than 65% of homes nearby

Lot size0.49 ac
SmallerTypical 0.46 acBigger

Bigger than 56% of homes nearby

Year built1902
OlderTypical 1988Newer

Newer than 8% of homes nearby

How 18 Mill St ranks against every home in each area.
MeasureThis homeRochester 03868Strafford County
Estimated valuepricier than$401,62836% of homes22% of homes
Price per ft²pricier than$25420% of homes23% of homes
Living areabigger than1,579 ft²65% of homes47% of homes
Lot sizebigger than0.49 ac56% of homes41% of homes
Year builtnewer than19028% of homes12% of homes

About 18 Mill St

How much is 18 Mill St, Rochester, NH worth?

The TopHap Estimate for 18 Mill St, Rochester, NH is $401,628 as of Sep 24, 2026. The likely range is $375,566 to $427,690. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Mill St, Rochester, NH last sell?

18 Mill St, Rochester, NH last sold on Jun 22, 2022 for $285,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 18 Mill St, Rochester, NH?

18 Mill St, Rochester, NH has 3 bedrooms, 1.5 bathrooms, 1,579 square feet of living space and a 0.49-acre lot.

When was 18 Mill St, Rochester, NH built?

18 Mill St, Rochester, NH was built in 1902, making it 124 years old. It is a conventional home. The building has 2 stories.

What schools serve 18 Mill St, Rochester, NH?

18 Mill St, Rochester, NH is assigned to East Rochester Elementary School (elementary), rated C-; Spaulding High School (high), rated C+; 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 18 Mill St, Rochester, NH compare to other homes in Rochester 03868?

Among the 2,440 homes in Rochester 03868, it is worth more than 36% of them ($401,628 against a typical $433,652), its price per square foot is higher than 20% of them ($254 against a typical $306), it is bigger than 65% of them (1,579 ft² against a typical 1,399 ft²), its lot is bigger than 56% of them (0.49 ac against a typical 0.46 ac) and it is newer than 8% of them (1902 against a typical 1988). Measured against all of Strafford County, it is worth more than 22% 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 18 Mill St, Rochester, NH?

The 2025 property tax bill for 18 Mill St, Rochester, NH was $5,783. The county assessed it at $378,000.

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