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Single Family ResidenceResidential
$645,986$307 / 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 95How 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

475 FLAGG RD

LOUDON, NH 03307
3
Beds
2.5
Baths
2,106 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.
22 ac
Lot SizeThe size of the land the home sits on, from county records.
2020
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$646K
$614K low$678K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,221 (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.$303,632 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$93,432
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$210,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$303,706
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$455,715

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
10
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
56
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
89
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
CountyMERRIMACK
Lot (acres)The size of the land the home sits on, from county records.22.00
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Canterbury Elementary SchoolA
Elementary · Grades KG–5 · 2.8 mi
M
Belmont Middle SchoolB-
Middle · Grades 5–8 · 9.1 mi
H
Belmont High SchoolC
High · Grades 9–12 · 9.9 mi

District: Shaker Regional School District

Neighborhood · ZIP 03307These 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.65
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.86
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.117

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.97%
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.10%
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.5,935
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.119 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,284
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$114,619
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.43 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

475 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 90% of homes in Loudon 03307
  • Costs more per square foot than 94% of homes in Loudon 03307
  • Bigger than 65% of homes in Merrimack County
  • Has a bigger lot than 96% of homes in Merrimack County
  • Among the newest homes in Loudon 03307

What homes are worth in Loudon 03307

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

This home
$281K$799K

This home is worth more than 90% of homes in Loudon 03307.

How it measures up in Loudon 03307

The dot is this home. The mark in the middle is the typical home in Loudon 03307.

Estimated value$645,986
CheaperTypical $465,867Pricier

Pricier than 90% of homes nearby

Price per ft²$307
CheaperTypical $229Pricier

Pricier than 94% of homes nearby

Living area2,106 ft²
SmallerTypical 1,968 ft²Bigger

Bigger than 56% of homes nearby

Lot size22 ac
SmallerTypical 2.5 acBigger

Bigger than 93% of homes nearby

Year built2020
OlderTypical 1987Newer

Newer than almost all homes nearby

How 475 Flagg Rd ranks against every home in each area.
MeasureThis homeLoudon 03307Merrimack County
Estimated valuepricier than$645,98690% of homes77% of homes
Price per ft²pricier than$30794% of homes66% of homes
Living areabigger than2,106 ft²56% of homes65% of homes
Lot sizebigger than22 ac93% of homes96% of homes
Year builtnewer than2020almost all homes97% of homes

About 475 Flagg Rd

How much is 475 Flagg Rd, Loudon, NH worth?

The TopHap Estimate for 475 Flagg Rd, Loudon, NH is $645,986 as of Oct 21, 2026. The likely range is $613,997 to $677,975. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 475 Flagg Rd, Loudon, NH last sell?

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

How big is 475 Flagg Rd, Loudon, NH?

475 Flagg Rd, Loudon, NH has 3 bedrooms, 2.5 bathrooms, 2,106 square feet of living space and a 22.00-acre lot.

When was 475 Flagg Rd, Loudon, NH built?

475 Flagg Rd, Loudon, NH was built in 2020, making it 6 years old. It is a colonial home. The building has 2 stories.

What schools serve 475 Flagg Rd, Loudon, NH?

475 Flagg Rd, Loudon, NH is assigned to Canterbury Elementary School (elementary), rated A; Belmont Middle School (middle), rated B-; Belmont High School (high), rated C. All sit in Shaker Regional School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 475 Flagg Rd, Loudon, NH compare to other homes in Loudon 03307?

Among the 2,195 homes in Loudon 03307, it is worth more than 90% of them ($645,986 against a typical $465,867), its price per square foot is higher than 94% of them ($307 against a typical $229), it is bigger than 56% of them (2,106 ft² against a typical 1,968 ft²), its lot is bigger than 93% of them (22 ac against a typical 2.5 ac) and it is newer than almost all of them (2020 against a typical 1987). Measured against all of Merrimack 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 475 Flagg Rd, Loudon, NH?

The 2025 property tax bill for 475 Flagg Rd, Loudon, NH was $6,221. The county assessed it at $303,632.

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