Property overview

3603 S 88TH St

Milwaukee, WI 53228

Who owns 3603 S 88TH St, what the county and city have on record, and a measured sell-signal score — every fact dated and sourced.

Owner of recordJohn A Kasprzak & and Katheryn A Kasprzak HwMailing address: 3603 S 88 St, Milwaukee, WI 53228Observed Sep 21, 2026 · City of Milwaukee Master Property File (MPROP, data.milwaukee.gov)

Parcel 5600004000 · Public research profile

Motivated Seller IndexDRAFT MODEL

54/100

About 3 in 100 homes with these signals sold within seven months (1.1× the Milwaukee rate)100% of model checks have usable evidence

A measured sell-signal score from public records: 1 positive signal observed. It is a base rate for homes like this, not a statement about this owner. How it works ↓

Satellite · © Google

Street View · © Google

Satellite · © Google

Assessed value$274,600 total (land $51,300, improvements $223,300), 2026 assessment

Tax statusUnverified

Ownership tenureUnverified

Property typeSingle-family home, ranch (Assessor class 1, land use 8810)

THE INDEX

Why this MSI reads 54

Draft model

2 of 15 checked public signals observed, covering 100% of the model. The score is public; the signal-by-signal reasons, source documents, and owner details are in LienSuite.

Method and limits. MSI v0.2-milwaukee-2026-09 weights fifteen public signals by how much each one changed the recorded seven-month arm’s-length conveyance rate across all 123,000 residential parcels in the City of Milwaukee, reading every owner-side signal from the Assessor’s December-2025 roll so no signal reads the buyer’s state, checked on a holdout the model never saw (the top 0.5% of homes by score sold at 3.5x the citywide rate, the top 10% at 2.6x — a flatter top than Motsele’s other cities, because Milwaukee publishes few dated activity records).: vacant per the assessment roll +25, new-construction permit +21, alteration permit +17, litter or debris 311 request +16, owner does not live at the property +12, owned by a company or trust +12, building-disrepair 311 request +10, garbage or rodent 311 request +5, owner mails out of state +2, owner mails outside milwaukee +2, bought since 2024 -2, two or more dwelling units -3, built before 1920 -3, assessed under $50,000 -6, no arm’s-length sale since 2014 -8. The "in 100 homes" figure is the model's fitted probability for this combination of signals. It describes homes like this one in aggregate; it is not a claim about this owner's intentions, and it is not LienSuite's paid deal score.

THE RECORD

Property details

Dated sources

Property type: Single-family home, ranch (Assessor class 1, land use 8810)
Owner of record: John A Kasprzak & and Katheryn A Kasprzak Hw (mailing address 3603 S 88 St, Milwaukee, WI 53228)
Owner-occupied: No — the owner’s mailing address is not the property
Assessed value: $274,600 total (land $51,300, improvements $223,300), 2026 assessment
Delinquent property tax: Not on the Treasurer’s delinquent real estate tax list
Vacant building registration: Not on the DNS vacant buildings list
Building area: 1,276 sq ft, 1 story, 3 bedrooms
Lot size: 6,650 sq ft
Year built: 1956
Last recorded conveyance: Termination of interest, May 3, 1991 — transfer fee $9,000 (implies about $3,000,000)

Parcel reference: 5600004000. Facts reflect the listed observation dates and may have changed since then.

OWNERSHIP AND TAXES

Research snapshot

Observed tax balanceNot verified

Delinquency periodNot verified

Last recorded transferNot connected

Transfer amountNot connected

Source details not yet connected. A tax balance is not proof that a property is for sale.

CHANGES OVER TIME

Property timeline

May 3, 1991
Recorded conveyance
termination of interest, transfer fee $9,000 (about $3,000,000).
City of Milwaukee Master Property File (MPROP, data.milwaukee.gov) · checked Sep 21, 2026

NEARBY

More records nearby

Other homes on S 88TH St

Highest sell signal in 53228

Facts on this page reflect their observation dates. Confirm the parcel and current records with the county before acting.