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Single Family ResidenceResidential
$274,770$134 / 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 91How 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 $76,000 on Mar 25, 1999

30 WILLIAMSON AVE

BERLIN, NH 03570
4
Beds
2
Baths
2,048 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.
0.65 ac
Lot SizeThe size of the land the home sits on, from county records.
1947
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$275K
$250K low$300K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$76,000 · Mar 25, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,990 (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.$237,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$64,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$173,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$311,125

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.11 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
CountyCOOS
Lot (acres)The size of the land the home sits on, from county records.0.65
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

M
Berlin Middle SchoolF
Middle · Grades 7–8 · 1.3 mi
H
Berlin High SchoolD-
High · Grades 9–12 · 1.3 mi
E
Berlin Elementary SchoolD
Elementary · Grades PK–5 · 1.4 mi

District: Berlin School District

Neighborhood · ZIP 03570These 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.91
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.85

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.83%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.6%
PopulationHow many people live in this area.9,357
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.118 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$48,012
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$70,383
Average tempThe average temperature here across a full year.40°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

30 Williamson Ave 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 93% of homes in Berlin 03570
  • Costs less per square foot than 74% of homes in Coos County
  • Bigger than 82% of homes in Berlin 03570
  • Has a bigger lot than 90% of homes in Berlin 03570
  • Older than 68% of homes in Coos County

What homes are worth in Berlin 03570

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

This home
$79K$350K

This home is worth more than 93% of homes in Berlin 03570.

How it measures up in Berlin 03570

The dot is this home. The mark in the middle is the typical home in Berlin 03570.

Estimated value$274,770
CheaperTypical $171,236Pricier

Pricier than 93% of homes nearby

Price per ft²$134
CheaperTypical $133Pricier

Pricier than 51% of homes nearby

Living area2,048 ft²
SmallerTypical 1,372 ft²Bigger

Bigger than 82% of homes nearby

Lot size0.65 ac
SmallerTypical 0.22 acBigger

Bigger than 90% of homes nearby

Year built1947
OlderTypical 1922Newer

Newer than 66% of homes nearby

How 30 Williamson Ave ranks against every home in each area.
MeasureThis homeBerlin 03570Coos County
Estimated valuepricier than$274,77093% of homes56% of homes
Price per ft²pricier than$13451% of homes26% of homes
Living areabigger than2,048 ft²82% of homes79% of homes
Lot sizebigger than0.65 ac90% of homes39% of homes
Year builtnewer than194766% of homes32% of homes

About 30 Williamson Ave

How much is 30 Williamson Ave, Berlin, NH worth?

The TopHap Estimate for 30 Williamson Ave, Berlin, NH is $274,770 as of Oct 21, 2026. The likely range is $249,603 to $299,937. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 30 Williamson Ave, Berlin, NH last sell?

30 Williamson Ave, Berlin, NH last sold on Mar 25, 1999 for $76,000, according to the county's recorded deed.

How big is 30 Williamson Ave, Berlin, NH?

30 Williamson Ave, Berlin, NH has 4 bedrooms, 2 bathrooms, 2,048 square feet of living space and a 0.65-acre lot.

When was 30 Williamson Ave, Berlin, NH built?

30 Williamson Ave, Berlin, NH was built in 1947, making it 79 years old. It is a colonial home. The building has 2 stories.

What schools serve 30 Williamson Ave, Berlin, NH?

30 Williamson Ave, Berlin, NH is assigned to Berlin Middle School (middle), rated F; Berlin High School (high), rated D-; Berlin Elementary School (elementary), rated D. All sit in Berlin School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 30 Williamson Ave, Berlin, NH compare to other homes in Berlin 03570?

Among the 3,232 homes in Berlin 03570, it is worth more than 93% of them ($274,770 against a typical $171,236), its price per square foot is higher than 51% of them ($134 against a typical $133), it is bigger than 82% of them (2,048 ft² against a typical 1,372 ft²), its lot is bigger than 90% of them (0.65 ac against a typical 0.22 ac) and it is newer than 66% of them (1947 against a typical 1922). Measured against all of Coos County, it is worth more than 56% 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 30 Williamson Ave, Berlin, NH?

The 2025 property tax bill for 30 Williamson Ave, Berlin, NH was $7,990. The county assessed it at $237,800.

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