Grafton County and Thornton Town property record for 320 Upper Mad River Rd, Thornton, NH 03285
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1.5 ba · 1,276 sqft · built 2016 |
| Lot Size | 1.77 acres (77,101 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $3,878 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | M:00017 B:000007 L:0006-1 |
| Primary APN | M:00017 B:000007 L:0006-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,276 sqft Living Area |
| Gross Area | 2,634 sqft |
| Year Built | Built 2016 |
|---|---|
| Effective Year Built | Effective 2016 |
| Architectural Style | Ranch |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Metal |
| Lot Area | 77,101 sqft (1.77 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Gas |
| Street Address | 320 UPPER MAD RIVER RD |
|---|---|
| City | THORNTON |
| State | NH |
| Zip | 03285-6439 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | GENERA |
| Legal Lot Number | 164 S:0 |
| Jurisdiction | THORNTON TOWN NH |
| Township / Civil Division | THORNTON |
| Census Block Group | 1 |
| Census Block | 1050 |
| Census Tract | 960401 |
320 Upper Mad River Rd is owner-occupied and held in a trust.
Source: Grafton County and Thornton Town records, as of July 28, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 320 UPPER MAD RIVER RD, THORNTON, NH 03285-6439 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 320 Upper Mad River Rd was $3,878.
Source: Grafton County and Thornton Town assessment roll, as of July 28, 2026
| Type | Name |
|---|---|
| State | New Hampshire |
| County | Grafton County |
| County Subdivision | Thornton Town |
| Elementary School District | Thornton School District (KG - 08) |
| Secondary School District | Pemi-Baker Regional School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,878.00 | $330,300 Land $112,300 Building $218,000 | |
| 2023 | $3,683.00 (+3.75%) | $177,400 (-) Land $64,000 Building $113,400 | $307,325 |
| 2022 | $3,550.00 | $177,400 Land $64,000 Building $113,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 320 Upper Mad River Rd in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective February 7, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
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 320 Upper Mad River Rd 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 |
| Adjoins Burnable Land | Yes |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 58 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
May also be available: NH Broadband.
4G LTE (outdoors only), no 5G reported
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