3100 S 30TH ST
Office · Milwaukee · 53215
At a glance
3100 S 30TH ST in Milwaukee, WI is listed on the Milwaukee property roll as “Office”, tax key 5330738000. The roll records 2,100 sq ft of building area, 1 floors, a 1954 build year.
Milwaukee assessment roll
Parcel record
| Field | Value |
|---|---|
| tax key | 5330738000 |
| Site address | 3100 S 30TH ST |
| Land use (DOR) | 7400 — Office |
| Building area (actual) | 2,100 sq ft |
| Floors / units / buildings | 1 / — / — |
| Lot size | — |
| Year built | 1954 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | — |
Recorded owner (assessment roll)
AURORA HEALTH CARE INC
C/O CORPORATE REAL EST
Owner mailing address: 750 W VIRGINIA ST, MILWAUKEE,, WI, 53204
14 Milwaukee office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.
Location
- Address
- 3100 S 30TH ST
- City
- Milwaukee
- ZIP
- 53215
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 3100 S 30TH ST compare with other Milwaukee office buildings?
At 2,100 sq ft, 3100 S 30TH ST is less than a tenth the size of the average office building on the Milwaukee roll, which comes to 36,132 sq ft across 408 buildings.
Does the owner of 3100 S 30TH ST hold other Milwaukee office property?
14 Milwaukee office properties (14 parcels, 357K sq ft) are recorded to 4 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What does “Office” mean for this parcel?
The Milwaukee roll classifies tax key 5330738000 as “Office” (use code 7400). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns 3100 S 30TH ST?
The recorded owner on the Milwaukee assessment roll (current) is AURORA HEALTH CARE INC, C/O CORPORATE REAL EST. Owner mailing address on file: 750 W VIRGINIA ST, MILWAUKEE,, WI, 53204.
How big is 3100 S 30TH ST?
The Milwaukee roll records 2,100 sq ft of building area, 1 floors, a build year of 1954.
What is the tax key for 3100 S 30TH ST?
Tax key 5330738000, site address 3100 S 30TH ST, Milwaukee. It is the key to look the parcel up in the City of Milwaukee master property file (Milwaukee).
More around 3100 S 30TH ST
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Milwaukee — City of Milwaukee master property file (owner names, mailing addresses, building areas, stories, year built, and recorded conveyances; sale price recovered from Wisconsin transfer tax). No universal business roll, so no tenant layer.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
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Dataset updated . Source: Milwaukee assessment roll, tax key 5330738000.
About this data
Source: City of Milwaukee master property file (Milwaukee), as published September 21, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “3100 S 30TH ST, Milwaukee, WI (tax key 5330738000)”, https://buildingcensus.com/offices/milwaukee/office-building-22ef3d7e (data as of September 21, 2026).