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Entity Owned 
For Sale
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Property summary
This exceptional Class A office building, located at 30 S Main St in Fond du Lac, Wisconsin, presents a unique investment opportunity. Boasting 76,086 square feet of space, this 1981-constructed property is currently priced at $2,300,000, or $30.23 per square foot. Its prime downtown location offers significant advantages, including convenient access to amenities and infrastructure. The building's pristine condition and impressive open floor plan make it ideal for a variety of uses, including… large office users or call centers. The attached ramp provides abundant parking, a significant benefit in a busy urban setting. Furthermore, the property's designation as both an Opportunity Zone and a Qualified Census Tract presents compelling tax advantages for potential investors. While currently owned by a non-profit university and not subject to property taxes, this status presents a unique opportunity for future tax benefits and potential redevelopment. The building's size and location make it a strong candidate for residential redevelopment, offering significant potential for future growth and return on investment. This trophy building represents a rare chance to acquire a high-quality asset in a thriving Wisconsin community. The property is situated in Fond du Lac County, Wisconsin, zip code 54935.
Ownership intelligence
Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.
Owner contacts
Skip-traced phones and e-mails of the owner. Included with a plan.
Debts
Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.
Property tax · 2023
Value estimate
· Oct 2026Realmo valuation models over county records.
Recently sold
Cap rate analysis
Price anchors at 6 / 6.5 / 7% — in the full report.
Zoning insight
Location intelligence
Demand index: how under-served this business type is around this point — modeled from the LocInt grid (area demand vs. what already operates, adjusted by real visit traffic). Higher means stronger unmet demand.
Location
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 · 14 properties nearbyComparable nearby
Similar in This City for Sale
Similar in This City for Lease
Instant AI valuation built from comps, income signals, and proprietary benchmarks.A defensible range, not a single guess.
from $199/month
- GBA
- 4,624 SF
- Lot area
- 0.07 ac
- Year built
- 1900
- Stories
- 2
- APN
- FDL-15-17-10-43-512-00
- Zoning
- B-3
- Assessed value · 2023
- $770,300
- Annual tax · 2023
- $20,746
- Estimated market rent / SF
- Potential gross income
- Vacancy allowance
- Effective gross income
- Benchmark operating expenses
- Stabilized NOI
- Property tax · 2023
- $20,746
- Selected cap rate
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
from $199/month
Price sensitivity
The rate is the decision lever; valuation is the consequence.
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
Registration is required before the official district profile is shown.
Unlock the evidence behind ownership: portfolio, transactions, debt and any signals we can model, to help you decide who to contact next.
Registration is required before any owner information is shown.
Phones and e-mails of the people behind this property's owner, traced from licensed contact data.
Owner phones and e-mails come with a plan - traced from licensed contact data, with verification and Do-Not-Call flags on every number.
The mortgage data comes with a plan: recorded loans of the owner - lender, amount, rate and the estimated maturity - as part of the Ownership Intelligence workspace.
Registration is required before any owner information is shown.
- 10 Targeted Leads
- 1 Full Property Report
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
-
Zoning Insight— not in this plan -
Location Analytics— not in this plan
- 300 Targeted Leads a month
- 30 Full Property Reports
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
- Zoning Insight
-
Location Analytics— not in this plan
- 1,500 Targeted Leads a month
- 150 Full Property Reports
- Lead Lists by Intent
- Signals & Scores
- Building Details
- Value Estimation
- Cap Rate Evaluation
- Liens & Mortgages
- Ownership & Contacts
- Local Market trends
- Zoning Insight
- Location Analytics
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Sample leads
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Off Market
AK
Absentee
AK
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Off Market
406 W, BROADWAY, AK
Absentee
406 W, BROADWAY, AK
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Off Market
W, BROADWAY, AK
Absentee
W, BROADWAY, AK
-
Off Market
1201, CAPTAINS BAY RD, AK
Absentee
1201, CAPTAINS BAY RD, AK
Sample leads
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Off Market
1404, ATS, AK
Loan from 20067.7% rateColumbia State Bank
1404, ATS, AK
-
Off Market
1503, BALLYHOO RD, AK
Loan from 2009Columbia State Bank
1503, BALLYHOO RD, AK
-
Off Market
721 E, DEPOT DR, AK
Loan from 2019Northrim Bank
721 E, DEPOT DR, AK
-
Off Market
AK
Loan from 2008Bmo Capital Markets Corp
AK
Still being built. It lands here next, beside the two above.
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