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Single Family ResidenceResidential
$1,047,474$268 / 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 88How 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 $810,000 on Nov 3, 2003

21 S MERRIMACK RD

HOLLIS, NH 03049
4
Beds
3
Baths
3,912 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.
2.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1999
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$1M
$926K low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$810,000 · Nov 3, 2003

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$18,048 (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.$954,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$228,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$726,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$964,820

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.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
29
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.
25
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Colonial
CountyHILLSBOROUGH
Lot (acres)The size of the land the home sits on, from county records.2.20
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
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Spa/Hot Tub (Only)

Transaction History(1)

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
Hollis Primary SchoolA+
Elementary · Grades PK–3 · 1.6 mi
M
Hollis-Brookline Middle SchoolA-
Middle · Grades 7–8 · 2.2 mi
H
Hollis-Brookline High SchoolA
High · Grades 9–12 · 2.5 mi

District: Hollis-Brookline Cooperative School District

Neighborhood · ZIP 03049These 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.51
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.81

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.1.6%
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.8,670
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.268 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$155,645
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$214,255
Average tempThe average temperature here across a full year.47°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

21 S Merrimack Rd 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 97% of homes in Hillsborough County
  • Costs less per square foot than 87% of homes in Hollis 03049
  • Bigger than 96% of homes in Hillsborough County
  • Has a bigger lot than 81% of homes in Hillsborough County
  • Newer than 82% of homes in Hillsborough County

What homes are worth in Hollis 03049

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

This home
$368K$1.7M

This home is worth more than 82% of homes in Hollis 03049.

How it measures up in Hollis 03049

The dot is this home. The mark in the middle is the typical home in Hollis 03049.

Estimated value$1,047,474
CheaperTypical $778,620Pricier

Pricier than 82% of homes nearby

Price per ft²$268
CheaperTypical $325Pricier

Pricier than 13% of homes nearby

Living area3,912 ft²
SmallerTypical 2,483 ft²Bigger

Bigger than 91% of homes nearby

Lot size2.2 ac
SmallerTypical 2.16 acBigger

Bigger than 52% of homes nearby

Year built1999
OlderTypical 1985Newer

Newer than 75% of homes nearby

How 21 S Merrimack Rd ranks against every home in each area.
MeasureThis homeHollis 03049Hillsborough County
Estimated valuepricier than$1,047,47482% of homes97% of homes
Price per ft²pricier than$26813% of homes27% of homes
Living areabigger than3,912 ft²91% of homes96% of homes
Lot sizebigger than2.2 ac52% of homes81% of homes
Year builtnewer than199975% of homes82% of homes

About 21 S Merrimack Rd

How much is 21 S Merrimack Rd, Hollis, NH worth?

The TopHap Estimate for 21 S Merrimack Rd, Hollis, NH is $1,047,474 as of Oct 21, 2026. The likely range is $926,289 to $1,168,659. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 S Merrimack Rd, Hollis, NH last sell?

21 S Merrimack Rd, Hollis, NH last sold on Nov 3, 2003 for $810,000, according to the county's recorded deed.

How big is 21 S Merrimack Rd, Hollis, NH?

21 S Merrimack Rd, Hollis, NH has 4 bedrooms, 3 bathrooms, 3,912 square feet of living space and a 2.20-acre lot.

When was 21 S Merrimack Rd, Hollis, NH built?

21 S Merrimack Rd, Hollis, NH was built in 1999, making it 27 years old. It is a colonial home. The building has 2 stories.

What schools serve 21 S Merrimack Rd, Hollis, NH?

21 S Merrimack Rd, Hollis, NH is assigned to Hollis Primary School (elementary), rated A+; Hollis-Brookline Middle School (middle), rated A-; Hollis-Brookline High School (high), rated A. All sit in Hollis-Brookline Cooperative School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 S Merrimack Rd, Hollis, NH compare to other homes in Hollis 03049?

Among the 3,144 homes in Hollis 03049, it is worth more than 82% of them ($1,047,474 against a typical $778,620), its price per square foot is higher than 13% of them ($268 against a typical $325), it is bigger than 91% of them (3,912 ft² against a typical 2,483 ft²), its lot is bigger than 52% of them (2.2 ac against a typical 2.16 ac) and it is newer than 75% of them (1999 against a typical 1985). Measured against all of Hillsborough County, it is worth more than 97% 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 S Merrimack Rd, Hollis, NH?

The 2025 property tax bill for 21 S Merrimack Rd, Hollis, NH was $18,048. The county assessed it at $954,900.

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