509 S Louis St, Mount Prospect, IL 60056 Property Records

Cook County property record for 509 S Louis St, Mount Prospect, IL 60056

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.5 ba · 1,240 sqft · built 1957
Lot Size	0.166 acres (7,236 sqft)
Owner	Individual Name on Record
Last Sale	$349,000 (Mar 2016)
Tax Bill	$7,289 (2023)
Deeds & Mortgages	Jun 2023 Mortgage Feb 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`08-12-407-005`

Property Details

APN / Parcel Number

Primary APN	`08-12-407-005`
Alternative APN	`08-12-407-005-0000`

Interior

Bedrooms	3 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,240 sqft Living Area
1st Floor Area	1,240 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1957
Effective Year Built	Effective 1957
Architectural Style	Bungalow
Exterior Material	Brick/Stone
Construction Type	Frame
Roof Material	Asphalt
Lot Area	7,236 sqft (0.166 acres)
Garage Type	Attached
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	HVAC
Sewer	Storm Sewer
Water Source	Commercial

Location & Zoning

Street Address	509 S LOUIS ST
City	MOUNT PROSPECT
State	IL
Zip	60056-3936
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	(PLEASANT) HEIGHTS ADD TO (MOUNT)(PROSPECT) SUB OF LT S 3&4 IN OEHLERKINOIS DIVISION IN SE SEC 12-41-11
Legal Range	11E
Legal Township	41N
Legal Section	12
Legal Subdivision	PLEASANT HEIGHTS ADD TO MOUNT PROSPECT
Legal Block	4
Legal Lot Number	3,4,S
Jurisdiction	COOK IL
Township / Civil Division	ELK GROVE
Census Block Group	3
Census Block	3017
Census Tract	804901

Owner

Source: Cook County records, as of May 27, 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	509 S LOUIS ST, MOUNT PROSPECT, IL 60056-3936
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Tenants by the Entirety

Deeds, Mortgages & Sale History

Date	Document
Jun 1, 2023	Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC
Feb 2, 2021	Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 18, 2016 · Amount on Record
Deed Sale	Mar 18, 2016 · Amount on Record
Prior Sale	Jul 24, 2009 · Amount on Record
Deed Document Number	201646033
Prior Transfer Date	Jun 11, 1994
Prior Transfer Doc	0000000554
Record Updated	Oct 29, 2026

June 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	COOK IL
Property Address	509 S LOUIS ST, MOUNT PROSPECT, IL 60056-3936
Transaction Type	Mortgage
Record Updated	Jun 12, 2023
Title Company	LAKESHORE TITLE AGENCY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0015234007
Date	Jun 1, 2023
Instrument	2315234007

Lender

Name	LOANDEPOT.COM LLC
Type	Mortgage Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	151 Months
Due	Jan 1, 2036

Interest

Rate	2.25%

February 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	COOK IL
Property Address	509 S LOUIS ST, MOUNT PROSPECT, IL 60056-3936
Transaction Type	Mortgage
Record Updated	Nov 2, 2022
Title Company	LAKESHORE TITLE AGENCY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003320366
Date	Feb 2, 2021
Instrument	2103320366

Lender

Name	LOANDEPOT.COM LLC
Type	Mortgage Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	179 Months
Due	Jan 1, 2036

Interest

Rate	2.25%

Tax Assessment & Valuation

Source: Cook County assessment roll, as of May 27, 2026

Property Jurisdictions

Type	Name
State	Illinois
County	Cook County
County Subdivision	Elk Grove Township
Municipality	Mount Prospect Village
Secondary School District	Township High School District 214 (09 - 12)
Elementary School District	Mount Prospect School District 57 (PK - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$38,000 (+20.29%) Land $8,683 Building $29,317	$380,000 (+20.29%) Land $86,830 Building $293,170
2023	$7,289.00 (-3.39%)
2022	$7,545.00 Homeowner's exemption	$31,590 Land $7,236 Building $24,354	$315,900 Land $72,360 Building $243,540

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective February 11, 2026 · 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
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	2 in force
Nearby Flood Claims	6 (1987–2007)
Claims Outside the SFHA	2 of 6
Most Recent Claim	Aug 2007 · Severe Storms And Flooding
Claims by Event	Severe Storms & Flooding, Aug 1987 · 3 claims

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	Not rated no burnable land within 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	MOUNT PROSPECT serves 41,000 people · EPA ID IL0311980
Water Source	Purchased surface water from NORTHWEST SUBURBAN MUNICIPAL JAWA
Last State Inspection	Aug 2025
Lead	2 ppb (2026–2028) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	11 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 671 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Verizon Fixed Wireless	1,000 / 75

May also be available: T-Mobile.

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