21 Dearborn St
Portsmouth, NH 03801
1 bd 1 ba 800 sqft Built 1850 Lot 2,178 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 | $177,300 | $313,200 | $490,500 | $5,646 |
| 2023 | $135,900 | $215,200 | $351,100 | $5,663 |
| 2022 | $135,900 | $215,200 | $351,100 | $5,337 |
| 2021 | $135,900 | $215,200 | $351,100 | $5,277 |
| 2020 | $116,300 | $215,200 | $331,500 | $4,873 |
| 2019 | $116,300 | $215,200 | $331,500 | $4,926 |
| 2018 | $103,600 | $195,600 | $299,200 | $4,739 |
| 2017 | $103,600 | $195,600 | $299,200 | $4,602 |
| 2016 | $96,400 | $149,300 | $245,700 | $4,187 |
| 2015 | $93,700 | $149,300 | $243,000 | $4,080 |
| 2014 | $79,800 | $127,400 | $207,200 | $3,750 |
| 2011 | $74,500 | $127,400 | $201,900 | $3,500 |
| 2007 | $75,800 | $98,000 | $173,800 | $2,840 |
Property facts
Year built
1850
Property type
single_family
Stories
2
Beds
1
Baths
1
Living area
800 sqft
Lot size
2,178 sqft
ZIP code
03801
City
Portsmouth
Street
Dearborn St
Coordinates
43.07958, -70.76677
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Dearborn St last sell?
No public-record sale is on file for 21 Dearborn St.
What is the current tax assessment for 21 Dearborn St?
The most recent total assessment for 21 Dearborn St (year 2025) is $490,500 with $5,646 in property tax.
When was 21 Dearborn St built?
21 Dearborn St was built in 1850.
How does 21 Dearborn St compare to others on Dearborn St?
We track 4 other properties on Dearborn St. Browse the list under "Other properties on Dearborn St" to compare beds, baths, and sale history.
What are the property facts for 21 Dearborn St?
21 Dearborn St is a 1 bed, 1 bath, 800 sqft, 2,178 sqft lot single_family.
Is 21 Dearborn St a flip candidate?
No — 21 Dearborn St does not appear in our flips dataset.
Is 21 Dearborn St a tax-appeal candidate?
No — 21 Dearborn 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 Dearborn St