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Single Family ResidenceResidential
$986,069$329 / 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 96How 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 $595,000 on Aug 10, 2020

31 BLACK OAK DR

HOLLIS, NH 03049
4
Beds
2.5
Baths
3,000 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.
2.58 ac
Lot SizeThe size of the land the home sits on, from county records.
1982
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$986K
$945K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$595,000 · Aug 10, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$15,186 (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.$803,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$309,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$494,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$884,545

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.54
51
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
32
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
55
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.
39
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.15 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.Colonial
CountyHILLSBOROUGH
Lot (acres)The size of the land the home sits on, from county records.2.58
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(5)

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
Hollis-Brookline High SchoolA
High · Grades 9–12 · 1.3 mi
M
Hollis-Brookline Middle SchoolB+
Middle · Grades 7–8 · 1.7 mi
E
Hollis Primary SchoolA
Elementary · Grades PK–3 · 2.2 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

31 Black Oak Dr 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 96% of homes in Hillsborough County
  • Bigger than 88% of homes in Hillsborough County
  • Has a bigger lot than 84% 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
$390K$1.7M

This home is worth more than 74% 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$986,069
CheaperTypical $808,203Pricier

Pricier than 74% of homes nearby

Price per ft²$329
CheaperTypical $336Pricier

Pricier than 45% of homes nearby

Living area3,000 ft²
SmallerTypical 2,489 ft²Bigger

Bigger than 71% of homes nearby

Lot size2.58 ac
SmallerTypical 2.15 acBigger

Bigger than 62% of homes nearby

Year built1982
OlderTypical 1985Newer

Newer than 43% of homes nearby

How 31 Black Oak Dr ranks against every home in each area.
MeasureThis homeHollis 03049Hillsborough County
Estimated valuepricier than$986,06974% of homes96% of homes
Price per ft²pricier than$32945% of homes59% of homes
Living areabigger than3,000 ft²71% of homes88% of homes
Lot sizebigger than2.58 ac62% of homes84% of homes
Year builtnewer than198243% of homes54% of homes

About 31 Black Oak Dr

How much is 31 Black Oak Dr, Hollis, NH worth?

The TopHap Estimate for 31 Black Oak Dr, Hollis, NH is $986,069 as of Sep 24, 2026. The likely range is $944,849 to $1,027,289. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 31 Black Oak Dr, Hollis, NH last sell?

31 Black Oak Dr, Hollis, NH last sold on Aug 10, 2020 for $595,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 31 Black Oak Dr, Hollis, NH?

31 Black Oak Dr, Hollis, NH has 4 bedrooms, 2.5 bathrooms, 3,000 square feet of living space and a 2.58-acre lot.

When was 31 Black Oak Dr, Hollis, NH built?

31 Black Oak Dr, Hollis, NH was built in 1982, making it 44 years old. It is a colonial home. The building has 2 stories.

What schools serve 31 Black Oak Dr, Hollis, NH?

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

How does 31 Black Oak Dr, Hollis, NH compare to other homes in Hollis 03049?

Among the 3,144 homes in Hollis 03049, it is worth more than 74% of them ($986,069 against a typical $808,203), its price per square foot is higher than 45% of them ($329 against a typical $336), it is bigger than 71% of them (3,000 ft² against a typical 2,489 ft²), its lot is bigger than 62% of them (2.58 ac against a typical 2.15 ac) and it is newer than 43% of them (1982 against a typical 1985). Measured against all of Hillsborough County, it is worth more than 96% 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 31 Black Oak Dr, Hollis, NH?

The 2025 property tax bill for 31 Black Oak Dr, Hollis, NH was $15,186. The county assessed it at $803,500.

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