423 Court St
Portsmouth, NH 03801
6 ba 4,241 sqft Built 1814 Lot 3,049 sqft other
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Dec 30, 2021 | Sold | $251,133 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $938,300 | $972,540 | $1,910,840 | $21,994 |
| 2023 | $401,000 | $457,400 | $858,400 | $13,846 |
| 2022 | $401,200 | $457,400 | $858,600 | $13,051 |
| 2021 | $401,200 | $457,400 | $858,600 | $12,905 |
| 2020 | $401,500 | $457,400 | $858,900 | $12,626 |
| 2019 | $401,600 | $457,400 | $859,000 | $12,765 |
| 2018 | $376,200 | $415,800 | $792,000 | $12,545 |
| 2017 | $372,500 | $415,800 | $788,300 | $12,124 |
| 2016 | $353,500 | $378,000 | $731,500 | $12,465 |
| 2015 | $353,500 | $378,000 | $731,500 | $12,282 |
| 2014 | $283,100 | $356,400 | $639,500 | $11,575 |
| 2011 | $279,400 | $356,400 | $635,800 | $11,024 |
| 2007 | $368,900 | $293,400 | $662,300 | $10,822 |
Property facts
Year built
1814
Property type
other
Stories
3
Beds
—
Baths
6
Living area
4,241 sqft
Lot size
3,049 sqft
ZIP code
03801
City
Portsmouth
Street
Court St
Coordinates
43.07683, -70.75393
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 423 Court St last sell?
No public-record sale is on file for 423 Court St.
What is the current tax assessment for 423 Court St?
The most recent total assessment for 423 Court St (year 2025) is $1,910,840 with $21,994 in property tax.
When was 423 Court St built?
423 Court St was built in 1814.
How does 423 Court St compare to others on Court St?
We track 8 other properties on Court St. Browse the list under "Other properties on Court St" to compare beds, baths, and sale history.
What are the property facts for 423 Court St?
423 Court St is a 6 bath, 4,241 sqft, 3,049 sqft lot other.
Is 423 Court St a flip candidate?
No — 423 Court St does not appear in our flips dataset.
Is 423 Court St a tax-appeal candidate?
Yes — 423 Court 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 Court St