Property overview

3438 S 81ST St

Milwaukee, WI 53219

Who owns 3438 S 81ST St, what the county and city have on record, and a measured sell-signal score — every fact dated and sourced.

Owner of recordSharry Sonnenburg and Kurt SonnenburgMailing address: 16605 W Sumerland Ct, New Berlin, WI 53151Observed Sep 21, 2026 · City of Milwaukee Master Property File (MPROP, data.milwaukee.gov)

Parcel 5270115000 · Public research profile

Motivated Seller IndexDRAFT MODEL

64/100

About 5 in 100 homes with these signals sold within seven months (1.8× the Milwaukee rate)100% of model checks have usable evidence

A measured sell-signal score from public records: 2 positive signals 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$218,100 total (land $73,200, improvements $144,900), 2026 assessment

Tax statusUnverified

Ownership tenureUnverified

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

THE INDEX

Why this MSI reads 64

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: Sharry Sonnenburg and Kurt Sonnenburg (mailing address 16605 W Sumerland Ct, New Berlin, WI 53151)
Owner-occupied: No — the owner’s mailing address is not the property
Assessed value: $218,100 total (land $73,200, improvements $144,900), 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: 964 sq ft, 1 story, 3 bedrooms
Lot size: 5,360 sq ft
Year built: 1958
Last recorded conveyance: Warranty deed, August 17, 2026 — transfer fee $783 (implies about $261,000)
Last arm’s-length sale: $95,000, September 1, 2014

Parcel reference: 5270115000. 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

Aug 17, 2026
Recorded conveyance
warranty deed, transfer fee $783 (about $261,000).
City of Milwaukee Master Property File (MPROP, data.milwaukee.gov) · checked Sep 21, 2026
Sep 1, 2014
Arm’s-length sale
$95,000.
City of Milwaukee property sales data (arm’s-length sales, data.milwaukee.gov) · checked Sep 21, 2026

NEARBY

More records nearby

Other homes on S 81ST St

Highest sell signal in 53219

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