1821 Islington St
Portsmouth, NH 03801
3 bd 3 ba 2,940 sqft Built 1780 Lot 223,898 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 | $913,600 | $534,600 | $1,448,200 | $16,669 |
| 2023 | $618,000 | $323,900 | $941,900 | $15,193 |
| 2022 | $618,000 | $323,900 | $941,900 | $14,317 |
| 2021 | $618,000 | $323,900 | $941,900 | $14,157 |
| 2020 | $618,000 | $323,900 | $941,900 | $13,846 |
| 2019 | $618,000 | $323,900 | $941,900 | $13,997 |
| 2018 | $549,600 | $283,900 | $833,500 | $13,203 |
| 2017 | $549,600 | $273,300 | $822,900 | $12,656 |
| 2016 | $481,200 | $275,700 | $756,900 | $12,898 |
| 2015 | $505,900 | $275,700 | $781,600 | $13,123 |
| 2014 | $454,400 | $243,300 | $697,700 | $12,628 |
| 2011 | $454,400 | $243,300 | $697,700 | $12,098 |
| 2007 | $506,400 | $226,400 | $732,800 | $11,974 |
Property facts
Year built
1780
Property type
single_family
Stories
2
Beds
3
Baths
3
Living area
2,940 sqft
Lot size
223,898 sqft
ZIP code
03801
City
Portsmouth
Street
Islington St
Coordinates
43.05869, -70.78563
Comparable properties nearby
Frequently asked questions
When did 1821 Islington St last sell?
No public-record sale is on file for 1821 Islington St.
What is the current tax assessment for 1821 Islington St?
The most recent total assessment for 1821 Islington St (year 2025) is $1,448,200 with $16,669 in property tax.
When was 1821 Islington St built?
1821 Islington St was built in 1780.
How does 1821 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 1821 Islington St?
1821 Islington St is a 3 bed, 3 bath, 2,940 sqft, 223,898 sqft lot single_family.
Is 1821 Islington St a flip candidate?
No — 1821 Islington St does not appear in our flips dataset.
Is 1821 Islington St a tax-appeal candidate?
No — 1821 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