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Single Family ResidenceResidential
$179,393$187 / 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 89How 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
Last sold for $160,000 on Jan 31, 2023

21 MILL ST

ASHLAND, NH 03217
2
Beds
1
Baths
960 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.
1,742 ft²
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$179K
$160K low$199K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$160,000 · Jan 31, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,734 (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.$142,450 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$40,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$102,450
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$236,075

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.46
66
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.
51
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
94
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
17
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.34 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

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
CountyGRAFTON
Lot (acres)The size of the land the home sits on, from county records.0.04
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.Metal
HeatingThe type of heating system in the home.Space
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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
Ashland Elementary SchoolB-
Elementary · Grades KG–8 · 0.4 mi
H
Plymouth Regional High SchoolB-
High · Grades 9–12 · 6.0 mi

District: Pemi-Baker Regional School District

Neighborhood · ZIP 03217These 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.157
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.80
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.119

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.72%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.25%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.5%
PopulationHow many people live in this area.1,782
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.160 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$68,618
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$73,475
Average tempThe average temperature here across a full year.44°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.33%

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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

21 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.

  • Among the least valuable homes in Ashland 03217
  • Costs less per square foot than 87% of homes in Ashland 03217
  • Smaller than 82% of homes in Grafton County
  • Among the smallest lots in Ashland 03217
  • Older than 89% of homes in Grafton County

What homes are worth in Ashland 03217

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

This home
$193K$1M

This home is worth less than almost all homes in Ashland 03217.

How it measures up in Ashland 03217

The dot is this home. The mark in the middle is the typical home in Ashland 03217.

Estimated value$179,393
CheaperTypical $333,003Pricier

Cheaper than almost all homes nearby

Price per ft²$187
CheaperTypical $271Pricier

Pricier than 13% of homes nearby

Living area960 ft²
SmallerTypical 1,344 ft²Bigger

Bigger than 20% of homes nearby

Lot size1,742 ft²
SmallerTypical 0.82 acBigger

Smaller than almost all homes nearby

Year built1900
OlderTypical 1980Newer

Newer than 16% of homes nearby

How 21 Mill St ranks against every home in each area.
MeasureThis homeAshland 03217Grafton County
Estimated valuepricier than$179,393almost no homes3% of homes
Price per ft²pricier than$18713% of homes15% of homes
Living areabigger than960 ft²20% of homes18% of homes
Lot sizebigger than1,742 ft²almost no homes3% of homes
Year builtnewer than190016% of homes11% of homes

About 21 Mill St

How much is 21 Mill St, Ashland, NH worth?

The TopHap Estimate for 21 Mill St, Ashland, NH is $179,393 as of Aug 30, 2026. The likely range is $160,128 to $198,658. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Mill St, Ashland, NH last sell?

21 Mill St, Ashland, NH last sold on Jan 31, 2023 for $160,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21 Mill St, Ashland, NH?

21 Mill St, Ashland, NH has 2 bedrooms, 1 bathrooms, 960 square feet of living space and a 0.04-acre lot.

When was 21 Mill St, Ashland, NH built?

21 Mill St, Ashland, NH was built in 1900, making it 126 years old. It is a cape cod home. The building has 2 stories.

What schools serve 21 Mill St, Ashland, NH?

21 Mill St, Ashland, NH is assigned to Ashland Elementary School (elementary), rated B-; Plymouth Regional High School (high), rated B-. All sit in Pemi-Baker Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Mill St, Ashland, NH compare to other homes in Ashland 03217?

Among the 1,113 homes in Ashland 03217, it is worth more than almost none of them ($179,393 against a typical $333,003), its price per square foot is higher than 13% of them ($187 against a typical $271), it is bigger than 20% of them (960 ft² against a typical 1,344 ft²), its lot is bigger than almost none of them (1,742 ft² against a typical 0.82 ac) and it is newer than 16% of them (1900 against a typical 1980). Measured against all of Grafton County, it is worth more than 3% 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 21 Mill St, Ashland, NH?

The 2025 property tax bill for 21 Mill St, Ashland, NH was $2,734. The county assessed it at $142,450.

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