306 Thornton St
Portsmouth, NH 03801
4 bd 3 ba 1,582 sqft Built 1900 Lot 4,356 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 | $475,600 | $342,500 | $818,100 | $9,416 |
| 2023 | $270,200 | $235,300 | $505,500 | $8,154 |
| 2022 | $270,200 | $235,300 | $505,500 | $7,684 |
| 2021 | $209,700 | $235,300 | $445,000 | $6,688 |
| 2020 | $209,700 | $235,300 | $445,000 | $6,542 |
| 2019 | $209,700 | $235,300 | $445,000 | $6,613 |
| 2018 | $186,500 | $213,900 | $400,400 | $6,342 |
| 2017 | $186,500 | $213,900 | $400,400 | $6,158 |
| 2016 | $183,600 | $160,100 | $343,700 | $5,857 |
| 2015 | $183,600 | $160,100 | $343,700 | $5,771 |
| 2014 | $159,700 | $135,500 | $295,200 | $5,343 |
| 2011 | $157,000 | $135,500 | $292,500 | $5,071 |
| 2007 | $199,200 | $109,300 | $308,500 | $5,041 |
Property facts
Year built
1900
Property type
single_family
Stories
2
Beds
4
Baths
3
Living area
1,582 sqft
Lot size
4,356 sqft
ZIP code
03801
City
Portsmouth
Street
Thornton St
Coordinates
43.07453, -70.77558
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 306 Thornton St last sell?
No public-record sale is on file for 306 Thornton St.
What is the current tax assessment for 306 Thornton St?
The most recent total assessment for 306 Thornton St (year 2025) is $818,100 with $9,416 in property tax.
When was 306 Thornton St built?
306 Thornton St was built in 1900.
How does 306 Thornton St compare to others on Thornton St?
We track 8 other properties on Thornton St. Browse the list under "Other properties on Thornton St" to compare beds, baths, and sale history.
What are the property facts for 306 Thornton St?
306 Thornton St is a 4 bed, 3 bath, 1,582 sqft, 4,356 sqft lot single_family.
Is 306 Thornton St a flip candidate?
No — 306 Thornton St does not appear in our flips dataset.
Is 306 Thornton St a tax-appeal candidate?
No — 306 Thornton 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 Thornton St