109 Union St
Portsmouth, NH 03801
4 bd 2 ba 1,300 sqft Built 1870 condo
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 | $767,200 | — | $767,200 | $8,830 |
| 2023 | $476,200 | — | $476,200 | $7,681 |
| 2022 | $476,200 | — | $476,200 | $7,238 |
| 2021 | $476,200 | — | $476,200 | $7,157 |
| 2020 | $476,200 | — | $476,200 | $7,000 |
| 2019 | $476,200 | — | $476,200 | $7,076 |
| 2018 | $452,400 | — | $452,400 | $7,166 |
| 2017 | $452,400 | — | $452,400 | $6,958 |
| 2016 | $342,400 | — | $342,400 | $5,834 |
| 2015 | $342,400 | — | $342,400 | $5,749 |
| 2014 | $323,300 | — | $323,300 | $5,852 |
| 2011 | $314,400 | — | $314,400 | $5,451 |
| 2007 | $273,300 | — | $273,300 | $4,466 |
Property facts
Year built
1870
Property type
condo
Stories
2
Beds
4
Baths
2
Living area
1,300 sqft
Lot size
—
ZIP code
03801
City
Portsmouth
Street
Union St
Coordinates
43.07146, -70.76599
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 109 Union St last sell?
No public-record sale is on file for 109 Union St.
What is the current tax assessment for 109 Union St?
The most recent total assessment for 109 Union St (year 2025) is $767,200 with $8,830 in property tax.
When was 109 Union St built?
109 Union St was built in 1870.
How does 109 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 109 Union St?
109 Union St is a 4 bed, 2 bath, 1,300 sqft condo.
Is 109 Union St a flip candidate?
No — 109 Union St does not appear in our flips dataset.
Is 109 Union St a tax-appeal candidate?
No — 109 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