18300 Gate Post Rd, Brookfield, WI 53045 Property Records

Waukesha County property record for 18300 Gate Post Rd, Brookfield, WI 53045

Property Summary

Property Type	Single Family Home
Lot Size	0.55 acres (23,958 sqft)
Owner	Individual Name on Record
Last Sale	$875,000 (Sep 2022)
Tax Bill	$10,630 (2025)
Deeds & Mortgages	Sep 2022 Sale & Mortgage Jul 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`BR C-1139-151`

Property Details

APN / Parcel Number

Primary APN	`BR C-1139-151`

Exterior

Lot Area	23,958 sqft (0.55 acres)

Location & Zoning

Street Address	18300 GATE POST RD
City	BROOKFIELD
State	WI
Zip	53045-6607
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	UNIT 3 ERBARY PLACE PT SW 1/4 SEC 33 T7N R20E
Legal Range	20E
Legal Township	7N
Legal Section	33
Legal Subdivision	ERBARY PLACE
Jurisdiction	WAUKESHA WI
Township / Civil Division	BROOKFIELD
Census Block Group	2
Census Block	2000
Census Tract	201204

Owner

Source: Waukesha County records, as of June 23, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on Record
Mailing Address	18300 GATE POST RD, BROOKFIELD, WI 53045-6607
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 9, 2022	Warranty Deed, Transfer · Conventional Mortgage JP MORGAN CHASE BANK
Jul 10, 2018	Warranty Deed, Transfer · Conventional Mortgage BMO HARRIS BANK NA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 9, 2022 · Amount on Record
Deed Sale	Sep 9, 2022 · Amount on Record
Prior Sale	Jul 10, 2018 · Amount on Record
Deed Document Number	20224688708
Record Updated	Sep 20, 2026

September 2022: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	WAUKESHA WI
Recording Date	Sep 9, 2022
Property Address	18300 GATE POST RD, BROOKFIELD, WI 53045-6607
Document Number	0004688708
Map Reference	CSM 10618
Instrument Date	Sep 6, 2022
Instrument	4688708
Transaction Type	Transfer
Record Updated	Sep 28, 2022

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,625.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18300 GATE POST RD, BROOKFIELD, WI 53045-6607

Mortgage

Document Number	0004688709
Date	Sep 9, 2022
Instrument	4688709

Lender

Name	JP MORGAN CHASE BANK

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded

July 2018: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	WAUKESHA WI
Recording Date	Jul 10, 2018
Property Address	18300 GATE POST RD, BROOKFIELD, WI 53045-6607
Document Number	0004349249
Instrument Date	Jul 2, 2018
Instrument	4349249
Transaction Type	Transfer
Record Updated	Apr 26, 2022

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,070.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18300 GATE POST RD, BROOKFIELD, WI 53045-6607

Mortgage

Document Number	0004349250
Date	Jul 10, 2018
Instrument	4349250

Lender

Name	BMO HARRIS BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2048

Tax Assessment & Valuation

Source: Waukesha County assessment roll, as of June 23, 2026

Property Jurisdictions

Type	Name
State	Wisconsin
Municipality	Brookfield City
County	Waukesha County
Unified School District	Elmbrook School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$10,630.00 (+2.45%)	$908,000 (-) Land $176,700 Building $731,300	$1,022,400 (+5.77%)
2023	$10,376.00 Homeowner's exemption	$908,000 Land $176,700 Building $731,300	$966,600

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective October 19, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	7 in force
Nearby Flood Claims	1 (1998)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Aug 1998 · Severe Storms And Flooding

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 97% of the US · lower than 92% of Wisconsin
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	BROOKFIELD WATER UTILITY serves 29,070 people · EPA ID WI2680253
Water Source	Groundwater
Last State Inspection	Sep 2023
Lead	2 ppb (2023) action level 15 ppb

Violations Reported to EPA

Water Quality	Radium resolved · Apr 2020
Treatment and Procedure	None last 10 years
Monitoring and Reporting	4 last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ.

Internet Providers

Source: FCC Broadband Data Collection, based on 192 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
TDS Telecom Fiber	8,000 / 8,000
Spectrum Cable	1,000 / 50
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T.

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