187 Union St
Portsmouth, NH 03801
4 bd 1 ba 1,553 sqft Built 1890 Lot 5,227 sqft single_family
Most recent sale
$719,000
Oct 4, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Oct 4, 2022 | Sold | $719,000 | Public Record |
| Jul 22, 2022 | Price changed | $749,000 | MLS #4920124 |
| Jul 11, 2022 | Listed | $799,000 | MLS #4920124 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $853,800 | $492,600 | $1,346,400 | $15,497 |
| 2023 | $202,600 | $285,500 | $488,100 | $7,873 |
| 2022 | $202,600 | $285,500 | $488,100 | $7,419 |
| 2021 | $202,600 | $285,500 | $488,100 | $7,336 |
| 2020 | $202,600 | $285,500 | $488,100 | $7,175 |
| 2019 | $199,200 | $285,500 | $484,700 | $7,203 |
| 2018 | $176,900 | $279,000 | $455,900 | $7,221 |
| 2017 | $176,900 | $233,600 | $410,500 | $6,313 |
| 2016 | $155,900 | $175,600 | $331,500 | $5,649 |
| 2015 | $155,900 | $175,600 | $331,500 | $5,566 |
| 2014 | $118,300 | $179,800 | $298,100 | $5,396 |
| 2011 | $117,500 | $179,800 | $297,300 | $4,655 |
| 2007 | $156,700 | $131,900 | $288,600 | $4,716 |
Property facts
Year built
1890
Property type
single_family
Stories
2
Beds
4
Baths
1
Living area
1,553 sqft
Lot size
5,227 sqft
ZIP code
03801
City
Portsmouth
Street
Union St
Coordinates
43.07075, -70.76483
Comparable properties nearby
Investment analysis
Estimates based on local averages — not personalized adviceEstimated monthly rent
$2,330
Gross rental yield
3.89%
Implied cap rate
2.53%
Trend-extrapolated value
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Frequently asked questions
When did 187 Union St last sell?
187 Union St most recently sold on Oct 4, 2022 for $719,000.
What is the current tax assessment for 187 Union St?
The most recent total assessment for 187 Union St (year 2025) is $1,346,400 with $15,497 in property tax.
How does 187 Union St's assessment compare to its last sale price?
The current assessment is 87.3% above the last sale price of $719,000.
When was 187 Union St built?
187 Union St was built in 1890.
How does 187 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 187 Union St?
187 Union St is a 4 bed, 1 bath, 1,553 sqft, 5,227 sqft lot single_family.
Is 187 Union St a flip candidate?
No — 187 Union St does not appear in our flips dataset.
Is 187 Union St a tax-appeal candidate?
Yes — 187 Union St appears in our tax-appeal candidates list, meaning its current assessment exceeds its recent sale price by 15% or more.
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