Rockingham County and Exeter Town property record for 18 Union St, #20, Exeter, NH 03833
| Property Type | Duplex |
|---|---|
| Details | 5 bd · 3 ba · 3,135 sqft · built 1900 |
| Lot Size | 0.21 acres (9,148 sqft) |
| Owner | Trust Name on File |
| Last Sale | $150,000 (Aug 1998) |
| Tax Bill | $11,650 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | EXTR M:073 L:243 |
| Primary APN | EXTR M:073 L:243 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 11 Rooms |
| Units | 2 Units |
| Stories | 3 Stories |
| Building Area | 3,135 sqft Living Area |
| Gross Area | 4,891 sqft |
| 1st Floor Area | 1,434 sqft |
| Basement Area | 1,134 sqft |
| Unfinished Basement | 1,134 sqft |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Architectural Style | Other |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 9,148 sqft (0.21 acres) |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Account Number | D4421R |
|---|---|
| Street Address | 18 UNION ST, 20 |
| City | EXETER |
| State | NH |
| Zip | 03833-3209 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R-2 |
| Legal Lot Number | 243 |
| Jurisdiction | EXETER TOWN NH |
| Township / Civil Division | EXETER |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 106200 |
18 Union St, #20 is held in a trust since August 1998.
Source: Rockingham County and Exeter Town records, as of July 28, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 220 CUSHING RD, NEWMARKET, NH 03857-1735 |
| 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 |
|---|---|
| Last Sale | Aug 3, 1998 · Amount on File |
| Deed Sale | Aug 3, 1998 · Amount on File |
| Deed Book / Page | 3314 / 2718 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 18 Union St, #20 was $11,650, up 5.4% from the year before.
Source: Rockingham County and Exeter Town assessment roll, as of July 28, 2026
| Type | Name |
|---|---|
| State | New Hampshire |
| County | Rockingham County |
| County Subdivision | Exeter Town |
| Secondary School District | Exeter Regional Cooperative School District (06 - 12) |
| Elementary School District | Exeter School District (PK - 05) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $11,650.00 (+5.45%) | $621,000 (-) Land $270,800 Building $350,200 |
| 2024 | $11,048.00 (+19.44%) | $621,000 (+79.79%) Land $270,800 Building $350,200 |
| 2023 | $9,250.00 (+8.2%) | $345,400 (-) Land $159,300 Building $186,100 |
| 2022 | $8,549.00 | $345,400 Land $159,300 Building $186,100 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 18 Union St, #20 in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective December 26, 2025 · 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 |
| Nearby Flood Policies | 2 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 18 Union St, #20 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 | Direct burnable vegetation |
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 | EXETER WATER DEPT serves 12,236 people · EPA ID NH0801010 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2022 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Oct 2025 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 419 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Fidium Fiber Fiber | 2,000 / 2,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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