521 Allen St
Belvidere, IL 61008
2 bd 2 ba 2,716 sqft Built 1960 Lot 8,712 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 | $66,987 | $4,074 | $71,061 | $5,181 |
| 2024 | $66,987 | $4,074 | $71,061 | $5,328 |
| 2023 | $63,569 | $4,074 | $67,643 | $2,109 |
| 2022 | $42,527 | $6,247 | $48,774 | $3,658 |
| 2021 | $40,064 | $6,247 | $46,311 | $3,427 |
| 2020 | $34,828 | $6,587 | $41,415 | $3,136 |
| 2019 | $32,673 | $6,587 | $39,260 | $2,982 |
| 2018 | $31,749 | $6,587 | $38,336 | $3,017 |
| 2017 | $29,740 | $6,903 | $36,643 | $2,707 |
| 2016 | $28,333 | $6,791 | $35,124 | $2,675 |
| 2015 | $24,021 | $8,488 | $32,509 | $2,454 |
| 2014 | $24,021 | $8,488 | $32,509 | $2,366 |
| 2013 | $26,616 | $8,488 | $35,104 | $2,574 |
| 2012 | $29,091 | $8,488 | $37,579 | $2,674 |
| 2011 | $32,219 | $8,674 | $40,893 | $1,322 |
| 2010 | $35,972 | $9,512 | $45,484 | $3,197 |
| 2008 | $42,320 | $9,719 | $52,039 | $2,928 |
| 2007 | $37,272 | $9,235 | $46,507 | $2,976 |
Property facts
Year built
1960
Property type
single_family
Stories
—
Beds
2
Baths
2
Living area
2,716 sqft
Lot size
8,712 sqft
ZIP code
61008
City
Belvidere
Street
Allen St
Coordinates
42.25157, -88.84604
Comparable properties nearby
Frequently asked questions
When did 521 Allen St last sell?
No public-record sale is on file for 521 Allen St.
What is the current tax assessment for 521 Allen St?
The most recent total assessment for 521 Allen St (year 2025) is $71,061 with $5,181 in property tax.
When was 521 Allen St built?
521 Allen St was built in 1960.
How does 521 Allen St compare to others on Allen St?
We track 8 other properties on Allen St. Browse the list under "Other properties on Allen St" to compare beds, baths, and sale history.
What are the property facts for 521 Allen St?
521 Allen St is a 2 bed, 2 bath, 2,716 sqft, 8,712 sqft lot single_family.
Is 521 Allen St a flip candidate?
No — 521 Allen St does not appear in our flips dataset.
Is 521 Allen St a tax-appeal candidate?
No — 521 Allen 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
-1.6%
Implied 1-yr
-6.3%
2026 Q3
$173.1K
2026 Q4
$170.1K
ZIP 61008 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Allen St