673 South St
Portsmouth, NH 03801
1 bd 1 ba 526 sqft Built 1970 condos
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 | $311,100 | — | $311,100 | $3,581 |
| 2023 | $202,800 | — | $202,800 | $3,271 |
| 2022 | $202,800 | — | $202,800 | $3,083 |
| 2021 | $202,800 | — | $202,800 | $3,048 |
| 2020 | $149,700 | — | $149,700 | $2,201 |
| 2019 | $149,700 | — | $149,700 | $2,225 |
| 2018 | $146,100 | — | $146,100 | $2,314 |
| 2017 | $122,500 | — | $122,500 | $1,884 |
| 2016 | $105,500 | — | $105,500 | $1,798 |
| 2015 | $105,500 | — | $105,500 | $1,771 |
| 2014 | $106,200 | — | $106,200 | $1,922 |
| 2011 | $106,200 | — | $106,200 | $1,841 |
| 2007 | $113,800 | — | $113,800 | $1,859 |
Property facts
Year built
1970
Property type
condos
Stories
1
Beds
1
Baths
1
Living area
526 sqft
Lot size
—
ZIP code
03801
City
Portsmouth
Street
South St
Coordinates
43.06614, -70.75820
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 673 South St last sell?
No public-record sale is on file for 673 South St.
What is the current tax assessment for 673 South St?
The most recent total assessment for 673 South St (year 2025) is $311,100 with $3,581 in property tax.
When was 673 South St built?
673 South St was built in 1970.
How does 673 South St compare to others on South St?
We track 8 other properties on South St. Browse the list under "Other properties on South St" to compare beds, baths, and sale history.
What are the property facts for 673 South St?
673 South St is a 1 bed, 1 bath, 526 sqft condos.
Is 673 South St a flip candidate?
No — 673 South St does not appear in our flips dataset.
Is 673 South St a tax-appeal candidate?
No — 673 South 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 South St