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Financial
Distress signals
Property profile

639 Washington St Naperville, IL 60540

OFF-MARKET
Office buildings
Property ID
US28-1774642
979 SF 0.14 ac lot Built 1895
Last sale Nov 1998 · $1,035,000
Entity Owned Owner of record is a legal entity (LLC / corporation). 27-yr Hold Held for 27 years. Absentee Owner Owner mailing address differs from the property address. ~ Est. High Equity Modeled equity is high. Estimate, not a fact.
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Property summary

AI-generated overview

This exceptional two-story, single-tenant office building, located at 639 S Washington St in Naperville, DuPage County, offers 2,387 square feet of versatile space. Built in 1916 and renovated in 2000, the property sits on a 0.13-acre lot and boasts 14 parking spaces. Its prime location on South Washington Street provides high visibility and easy access to downtown Naperville's amenities, including dining, shopping, and public transportation. The building's adaptable TU zoning allows for a…

Ownership intelligence

Who controls the opportunity?

Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with a plan.

Debts

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.

Property tax · 2023

What does the county charge?
$8k
Tax billed · 2023
Assessed value$120k
Assessed land$62k
Assessed improvement$57k
Effective rate6.49%

Value estimate

· Oct 2026
$260k
$234k – $286k
AI approach$265k

Realmo valuation models over county records and 3 qualifying comparable sales.

Recently sold

What actually traded nearby?
$216/SF
Submarket average, outlier-cleaned · 33 recorded sales of this use type
Observed band · Q1–Q3$134 – $279
Qualifying comparables3

Cap rate analysis

How does the asset earn?

No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.

Zoning insight

What can be built here?
R
JurisdictionDU PAGE

Location intelligence

Which uses thrive at this corner?
Best fit: Convenience Store
Demand index
Convenience Store10.1
Smoke and Vape Shop9.7
Dry Cleaner9.2

Location

639 Washington St Naperville, IL 60540-6643
County assessor Recorded deeds · 4 transfers 3 qualifying comp sales Zoning catalog

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

6 recorded sales · 18 properties nearby
Recent sales nearby
6 recorded sales in this ZIP, last 8 years
Address Sale price Sold Size
220 Washington, Naperville, IL 60540-4583 $595,000 Oct 2024 1,582 SF
625 Washington, Naperville, IL 60540-6643 $575,000 Jan 2022 1,568 SF
132 Washington, Naperville, IL 60540-4512 $250,000 Jan 2022 1,550 SF
543 Washington, Naperville, IL 60540-6641 $390,000 Sep 2021 1,410 SF
117 Aurora, Naperville, IL 60540-6503 $700,000 Jan 2021 1,386 SF
134 Washington, Naperville, IL 60540-4512 $160,000 Jan 2020 1,552 SF
Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.
Comparable nearby
6 properties of the same type nearby
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