Coos County and Berlin City property record for 43 Williamson Ave, Berlin, NH 03570
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 1,626 sqft · built 1954 |
| Lot Size | 0.15 acres (6,534 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,255 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 12500009800000001 |
| Primary APN | 12500009800000001 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,626 sqft Living Area |
| Gross Area | 3,477 sqft |
| Basement Area | 1,056 sqft |
| Unfinished Basement | 1,056 sqft |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1954 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 6,534 sqft (0.15 acres) |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Oil |
| Account Number | 12500009800000001 |
|---|---|
| Street Address | 43 WILLIAMSON AVE |
| City | BERLIN |
| State | NH |
| Zip | 03570-3137 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RS |
| Legal Block | 98 |
| Jurisdiction | BERLIN CITY NH |
| Township / Civil Division | BERLIN |
| Census Block Group | 4 |
| Census Block | 4004 |
| Census Tract | 950700 |
43 Williamson Ave is owned and occupied by two individuals.
Source: Coos County and Berlin City records, as of July 28, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 43 WILLIAMSON AVE, BERLIN, NH 03570-3137 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 43 Williamson Ave was $5,255.
Source: Coos County and Berlin City assessment roll, as of July 28, 2026
| Type | Name |
|---|---|
| State | New Hampshire |
| County | Coos County |
| Municipality | Berlin City |
| Unified School District | Berlin School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,255.00 | $156,400 Land $26,100 Building $130,300 | |
| 2023 | $4,207.00 (-11.41%) | $156,400 (-10.22%) Land $26,100 Building $130,300 | $272,460 |
| 2022 | $4,749.00 | $174,200 Land $26,100 Building $148,100 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 43 Williamson Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2017.
Source: FEMA National Flood Hazard Layer, effective February 20, 2013 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 14 policies |
| Nearby Flood Policies | 14 in force |
| Nearby Flood Claims | 2 (2017) |
| Most Recent Claim | Oct 2017 · Severe Storm And Flooding |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 43 Williamson Ave is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 52% of New Hampshire |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | BERLIN WATER WORKS serves 9,575 people · EPA ID NH0231010 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2025 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 167 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Fidium Fiber Fiber | 2,000 / 2,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Netafy Fixed Wireless | 500 / 500 |
| T-Mobile Fixed Wireless | 100 / 20 |
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