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Property profile

101 Washington St Naperville, IL 60540

OFF-MARKET
Office buildings
Property ID
US28-0776174
3,677 SF 0.3 ac lot Built 1850
Last sale Mar 2025 · $799,000
Entity Owned Owner of record is a legal entity (LLC / corporation). 1-yr Hold Held for 1 years. ~ Est. High Equity Modeled equity is high. Estimate, not a fact.
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Property summary

AI-generated overview

This stunning, 3,744 square foot, two-story office building, located at 101 N Washington St, Naperville, IL 60540, presents a unique owner-user opportunity. Built in 1867, this Class D property features 10 on-site parking spaces and sits on a 13,965 square foot lot. Currently 77% occupied by four tenants under a gross lease, the building offers nine private offices, a reception area, conference room, and break room. A full unfinished basement provides additional storage. The property's…

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?
$19k
Tax billed · 2023
Assessed value$300k
Assessed land$190k
Assessed improvement$110k
Effective rate6.49%

Value estimate

· Oct 2026
$705k
$635k – $776k
AI approach$815k
CAP approach$715k
Submarket $/SF estimate$700k

Realmo valuation models over county records.

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

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?
O
JurisdictionDU PAGE

Location intelligence

Which uses thrive at this corner?
Best fit: Auto Parts Store
Demand heat for this use is drawn on the map · LocInt grid
Demand index
Auto Parts Store9.9
Dry Cleaner9.4
Storage Facility8.5

Location

101 Washington St Naperville, IL 60540-4511
County assessor Recorded deeds · 2 transfers Qualifying comp sales · not on file 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
1021 Aurora, Naperville, IL 60540-5292 $500,000 Oct 2025 2,190 SF
121 Washington, Naperville, IL 60540-4558 $1,000,000 Jun 2025 5,109 SF
220 Washington, Naperville, IL 60540-4583 $595,000 Oct 2024 1,582 SF
127 Aurora, Naperville, IL 60540-6503 $1,475,000 Jun 2023 2,864 SF
625 Washington, Naperville, IL 60540-6643 $575,000 Jan 2022 1,568 SF
116 Webster, Naperville, IL 60540-4548 $1,900,000 Aug 2021 2,520 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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