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6 Sylvester St

Portsmouth, NH 03801

ba 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

YearBuildingLandTotal assessedTax paid
2025 $622,100 $337,200 $959,300 $11,042
2023 $287,300 $188,200 $475,500 $7,670
2022 $277,800 $188,200 $466,000 $7,083
2021 $232,300 $188,200 $420,500 $6,320
2020 $192,400 $188,200 $380,600 $5,595
2019 $192,400 $188,200 $380,600 $5,656
2018 $168,700 $181,700 $350,400 $5,550
2017 $155,200 $166,500 $321,700 $4,948
2016 $110,300 $146,100 $256,400 $4,369
2015 $110,300 $146,100 $256,400 $4,305
2014 $117,200 $149,300 $266,500 $4,824
2011 $95,600 $149,300 $244,900 $4,349
2007 $157,000 $120,800 $277,800 $4,539

Property facts

Year built
Property type
single_family
Stories
Beds
Baths
Living area
Lot size
ZIP code
03801
City
Portsmouth
Street
Sylvester St
Coordinates
43.05940, -70.77604

Block-level micro-comps

Same street, ±3 house numbers, sold in the last 24 months

Frequently asked questions

When did 6 Sylvester St last sell?
No public-record sale is on file for 6 Sylvester St.
What is the current tax assessment for 6 Sylvester St?
The most recent total assessment for 6 Sylvester St (year 2025) is $959,300 with $11,042 in property tax.
When was 6 Sylvester St built?
The year built for 6 Sylvester St is not in our records.
How does 6 Sylvester St compare to others on Sylvester St?
We track 4 other properties on Sylvester St. Browse the list under "Other properties on Sylvester St" to compare beds, baths, and sale history.
What are the property facts for 6 Sylvester St?
6 Sylvester St is a — bath single_family.
Is 6 Sylvester St a flip candidate?
No — 6 Sylvester St does not appear in our flips dataset.
Is 6 Sylvester St a tax-appeal candidate?
No — 6 Sylvester St is not currently flagged as a tax-appeal candidate.

Forecast for this area

ZIP-area linear projection — not a per-property automated valuation
Quarterly trend
+0.5%
Implied 1-yr
+2.1%
2026 Q3
$1.3M
2026 Q4
$1.31M
ZIP 03801 — Median Price History + Forecast

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