425 Islington St
Portsmouth, NH 03801
4 bd 4 ba 2,058 sqft Built 1840 Lot 2,614 sqft multi_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 | $472,400 | $264,000 | $736,400 | $8,476 |
| 2023 | $253,600 | $220,000 | $473,600 | $7,639 |
| 2022 | $231,900 | $220,000 | $451,900 | $6,869 |
| 2021 | $231,900 | $220,000 | $451,900 | $6,792 |
| 2020 | $231,900 | $220,000 | $451,900 | $6,643 |
| 2019 | $231,900 | $220,000 | $451,900 | $6,715 |
| 2018 | $217,200 | $200,000 | $417,200 | $6,608 |
| 2017 | $215,100 | $200,000 | $415,100 | $6,384 |
| 2016 | $204,300 | $184,000 | $388,300 | $6,617 |
| 2015 | $204,300 | $184,000 | $388,300 | $6,520 |
| 2014 | $158,300 | $160,000 | $318,300 | $5,761 |
| 2011 | $158,300 | $160,000 | $318,300 | $5,519 |
| 2007 | $186,300 | $185,600 | $371,900 | $6,077 |
Property facts
Year built
1840
Property type
multi_family
Stories
2
Beds
4
Baths
4
Living area
2,058 sqft
Lot size
2,614 sqft
ZIP code
03801
City
Portsmouth
Street
Islington St
Coordinates
43.07257, -70.76802
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 425 Islington St last sell?
No public-record sale is on file for 425 Islington St.
What is the current tax assessment for 425 Islington St?
The most recent total assessment for 425 Islington St (year 2025) is $736,400 with $8,476 in property tax.
When was 425 Islington St built?
425 Islington St was built in 1840.
How does 425 Islington St compare to others on Islington St?
We track 8 other properties on Islington St. Browse the list under "Other properties on Islington St" to compare beds, baths, and sale history.
What are the property facts for 425 Islington St?
425 Islington St is a 4 bed, 4 bath, 2,058 sqft, 2,614 sqft lot multi_family.
Is 425 Islington St a flip candidate?
No — 425 Islington St does not appear in our flips dataset.
Is 425 Islington St a tax-appeal candidate?
No — 425 Islington 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 Islington St