730 N PLANKINTON AV
Office · Milwaukee · 53203
At a glance
730 N PLANKINTON AV in Milwaukee, WI is listed on the Milwaukee property roll as “Office”, tax key 3611901000. The roll records 3,375 sq ft of building area, 10 floors, a 1916 build year.
Milwaukee assessment roll
Parcel record
| Field | Value |
|---|---|
| tax key | 3611901000 |
| Site address | 730 N PLANKINTON AV |
| Land use (DOR) | 7400 — Office |
| Building area (actual) | 3,375 sq ft |
| Floors / units / buildings | 10 / — / — |
| Lot size | — |
| Year built | 1916 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | — |
Recorded owner (assessment roll)
MOSTREET III LLC
GLOBAL RESTAURANT SYSTEMS
Owner mailing address: 730 N PLANKINTON AVE STE 1A, MILWAUKEE,, WI, 53203
2 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
- 730 N PLANKINTON AV
- City
- Milwaukee
- ZIP
- 53203
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 730 N PLANKINTON AV compare with other Milwaukee office buildings?
At 3,375 sq ft, 730 N PLANKINTON AV 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.
With 10 floors it is one of 28 office buildings of ten or more floors in the metro.
Does the owner of 730 N PLANKINTON AV hold other Milwaukee office property?
2 Milwaukee office properties (2 parcels, 124.2K sq ft) are recorded to 2 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 3611901000 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 730 N PLANKINTON AV?
The recorded owner on the Milwaukee assessment roll (current) is MOSTREET III LLC, GLOBAL RESTAURANT SYSTEMS. Owner mailing address on file: 730 N PLANKINTON AVE STE 1A, MILWAUKEE,, WI, 53203.
How big is 730 N PLANKINTON AV?
The Milwaukee roll records 3,375 sq ft of building area, 10 floors, a build year of 1916.
What is the tax key for 730 N PLANKINTON AV?
Tax key 3611901000, site address 730 N PLANKINTON AV, Milwaukee. It is the key to look the parcel up in the City of Milwaukee master property file (Milwaukee).
More around 730 N PLANKINTON AV
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 3611901000.
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, “730 N PLANKINTON AV, Milwaukee, WI (tax key 3611901000)”, https://buildingcensus.com/offices/milwaukee/office-building-51909330 (data as of September 21, 2026).