165 Union St
Portsmouth, NH 03801
4 bd 2 ba 1,450 sqft Built 1870 Lot 4,356 sqft single_family
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 | $378,800 | $473,700 | $852,500 | $9,812 |
| 2023 | $213,800 | $274,600 | $488,400 | $7,878 |
| 2022 | $213,800 | $274,600 | $488,400 | $7,424 |
| 2021 | $213,800 | $274,600 | $488,400 | $7,341 |
| 2020 | $212,100 | $274,600 | $486,700 | $7,154 |
| 2019 | $185,200 | $274,600 | $459,800 | $6,833 |
| 2018 | $164,700 | $268,300 | $433,000 | $6,859 |
| 2017 | $164,700 | $224,700 | $389,400 | $5,989 |
| 2016 | $145,700 | $169,000 | $314,700 | $5,362 |
| 2015 | $145,700 | $169,000 | $314,700 | $5,284 |
| 2014 | $108,000 | $165,400 | $273,400 | $4,949 |
| 2011 | $110,500 | $165,400 | $275,900 | $4,784 |
| 2007 | $143,300 | $119,200 | $262,500 | $4,289 |
Property facts
Year built
1870
Property type
single_family
Stories
3
Beds
4
Baths
2
Living area
1,450 sqft
Lot size
4,356 sqft
ZIP code
03801
City
Portsmouth
Street
Union St
Coordinates
43.07100, -70.76507
Comparable properties nearby
Frequently asked questions
When did 165 Union St last sell?
No public-record sale is on file for 165 Union St.
What is the current tax assessment for 165 Union St?
The most recent total assessment for 165 Union St (year 2025) is $852,500 with $9,812 in property tax.
When was 165 Union St built?
165 Union St was built in 1870.
How does 165 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 165 Union St?
165 Union St is a 4 bed, 2 bath, 1,450 sqft, 4,356 sqft lot single_family.
Is 165 Union St a flip candidate?
No — 165 Union St does not appear in our flips dataset.
Is 165 Union St a tax-appeal candidate?
No — 165 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