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Single Family ResidenceResidential
$671,437$428 / 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 93How 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

18 FLAGG RD

HOLLIS, NH 03049
2
Beds
2.5
Baths
1,568 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.
2.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1950
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$671K
$623K low$719K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,002 (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.$476,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$253,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$222,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$543,970

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.44
1
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.
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.Bungalow
CountyHILLSBOROUGH
Lot (acres)The size of the land the home sits on, from county records.2.21
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
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

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 · 1.6 mi
M
Hollis-Brookline Middle SchoolB+
Middle · Grades 7–8 · 2.0 mi
E
Hollis Primary SchoolA
Elementary · Grades PK–3 · 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

18 Flagg 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 77% of homes in Hillsborough County
  • Costs more per square foot than 90% of homes in Hillsborough County
  • Smaller than 83% of homes in Hollis 03049
  • Has a bigger lot than 81% of homes in Hillsborough County
  • Older than 90% of homes in Hollis 03049

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
$392K$1.8M

This home is worth more than 28% 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$671,437
CheaperTypical $807,892Pricier

Pricier than 28% of homes nearby

Price per ft²$428
CheaperTypical $336Pricier

Pricier than 89% of homes nearby

Living area1,568 ft²
SmallerTypical 2,479 ft²Bigger

Bigger than 17% of homes nearby

Lot size2.21 ac
SmallerTypical 2.15 acBigger

Bigger than 53% of homes nearby

Year built1950
OlderTypical 1985Newer

Newer than 10% of homes nearby

How 18 Flagg Rd ranks against every home in each area.
MeasureThis homeHollis 03049Hillsborough County
Estimated valuepricier than$671,43728% of homes77% of homes
Price per ft²pricier than$42889% of homes90% of homes
Living areabigger than1,568 ft²17% of homes41% of homes
Lot sizebigger than2.21 ac53% of homes81% of homes
Year builtnewer than195010% of homes20% of homes

About 18 Flagg Rd

How much is 18 Flagg Rd, Hollis, NH worth?

The TopHap Estimate for 18 Flagg Rd, Hollis, NH is $671,437 as of Sep 24, 2026. The likely range is $623,438 to $719,436. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 Flagg Rd, Hollis, NH last sell?

18 Flagg Rd, Hollis, NH last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 18 Flagg Rd, Hollis, NH?

18 Flagg Rd, Hollis, NH has 2 bedrooms, 2.5 bathrooms, 1,568 square feet of living space and a 2.21-acre lot.

When was 18 Flagg Rd, Hollis, NH built?

18 Flagg Rd, Hollis, NH was built in 1950, making it 76 years old. It is a bungalow home. The building has 1 story.

What schools serve 18 Flagg Rd, Hollis, NH?

18 Flagg Rd, 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 18 Flagg Rd, Hollis, NH compare to other homes in Hollis 03049?

Among the 3,144 homes in Hollis 03049, it is worth more than 28% of them ($671,437 against a typical $807,892), its price per square foot is higher than 89% of them ($428 against a typical $336), it is bigger than 17% of them (1,568 ft² against a typical 2,479 ft²), its lot is bigger than 53% of them (2.21 ac against a typical 2.15 ac) and it is newer than 10% of them (1950 against a typical 1985). Measured against all of Hillsborough County, it is worth more than 77% 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 Flagg Rd, Hollis, NH?

The 2025 property tax bill for 18 Flagg Rd, Hollis, NH was $9,002. The county assessed it at $476,300.

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