346 Union St
Portsmouth, NH 03801
4 bd 3 ba 1,932 sqft Built 1880 condo_townhome_rowhome_coop
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $899,700 | — | $899,700 | $10,356 |
| 2023 | $597,600 | — | $597,600 | $9,639 |
| 2022 | $597,600 | — | $597,600 | $9,084 |
| 2021 | $597,600 | — | $597,600 | $8,982 |
| 2020 | $597,600 | — | $597,600 | $8,785 |
| 2019 | $597,600 | — | $597,600 | $8,880 |
| 2018 | $519,500 | — | $519,500 | $8,229 |
| 2017 | $514,900 | — | $514,900 | $7,919 |
| 2016 | $460,600 | — | $460,600 | $7,849 |
| 2015 | $459,800 | — | $459,800 | $7,720 |
| 2014 | $437,400 | — | $437,400 | $7,917 |
Property facts
Year built
1880
Property type
condo_townhome_rowhome_coop
Stories
3
Beds
4
Baths
3
Living area
1,932 sqft
Lot size
—
ZIP code
03801
City
Portsmouth
Street
Union St
Coordinates
43.06886, -70.76354
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 346 Union St last sell?
No public-record sale is on file for 346 Union St.
What is the current tax assessment for 346 Union St?
The most recent total assessment for 346 Union St (year 2025) is $899,700 with $10,356 in property tax.
When was 346 Union St built?
346 Union St was built in 1880.
How does 346 Union St compare to others on Union St?
We track 8 other properties on Union St. Browse the list under "Other properties on Union St" to compare beds, baths, and sale history.
What are the property facts for 346 Union St?
346 Union St is a 4 bed, 3 bath, 1,932 sqft condo_townhome_rowhome_coop.
Is 346 Union St a flip candidate?
No — 346 Union St does not appear in our flips dataset.
Is 346 Union St a tax-appeal candidate?
No — 346 Union St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+0.5%
Implied 1-yr
+2.1%
2026 Q3
$1.3M
2026 Q4
$1.31M
ZIP 03801 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Union St