St. Clair County property record for 503 Lathrop St, Algonac, MI 48001
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 3,910 sqft · built 1997 |
| Lot Size | 0.26 acres (11,326 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $620,000 (Mar 2017) |
| Tax Bill | $14,099 (2025) |
| Deeds & Mortgages | Feb 2021 Mortgage Jan 2021 Line of Credit + 4 more |
| Flood Zone | Zone AE (high risk) |
| APN | 74-01-152-0011-000 |
| Primary APN | 74-01-152-0011-000 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Half Baths | 2 Half Baths |
| Stories | 1 Story |
| Building Area | 3,910 sqft Living Area |
| 1st Floor Area | 1,952 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1997 |
|---|---|
| Effective Year Built | Effective 1997 |
| Lot Area | 11,326 sqft (0.26 acres) |
| Lot Dimensions | 120 ft deep x 170 ft wide |
| Garage Area | 1,736 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 503 LATHROP ST |
|---|---|
| City | ALGONAC |
| State | MI |
| Zip | 48001-1694 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-1 |
| Legal Description | LOTS 11 & 14 MARINERS POINTE ACCORDING TO THE PLAT RECORDED IN LIBER 87 OF PLATS PGS 3-4 ST CLAIR COUNTY REGISTER OF DEEDS |
| Legal Subdivision | MARINERS POINTE |
| Legal Lot Number | 11,14 |
| Jurisdiction | SAINT CLAIR MI |
| Township / Civil Division | ALGONAC |
| Census Block Group | 4 |
| Census Block | 4026 |
| Census Tract | 649000 |
Source: St. Clair County records, as of September 17, 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 | 503 LATHROP ST, ALGONAC, MI 48001-1694 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Feb 22, 2021 | Deed of Trust, Mortgage · Conventional Mortgage MICHIGAN FIRST CU |
| Jan 14, 2021 | Deed of Trust, Mortgage · Line of Credit MICHIGAN FIRST CU |
| Apr 1, 2020 | Deed of Trust, Mortgage · Conventional Mortgage MORTGAGE 1 AT SUBURBAN |
| Jan 4, 2018 | Deed of Trust, Mortgage · Line of Credit MICHIGAN FIRST CU |
| Oct 27, 2017 | Deed of Trust, Mortgage · Conventional Mortgage COUNTRYWIDE MTG FNDG |
| Mar 24, 2017 | Warranty Deed, Transfer ATTORNEY'S TITLE, ATTORNEYS TITLE AGENCY LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 24, 2017 · Amount on Record |
| Deed Sale | Mar 24, 2017 · Amount on Record |
| Deed Document Number | 20177198 |
| Deed Book / Page | 4811 / 596 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAINT CLAIR MI |
| Property Address | 503 LATHROP ST, ALGONAC, MI 48001-1694 |
| Transaction Type | Mortgage |
| Record Updated | Mar 15, 2021 |
| Name | Verified Name |
|---|---|
| Address | 503 LATHROP ST, ALGONAC, MI 48001-1694 |
| Document Number | 0053210992 |
|---|---|
| Date | Feb 22, 2021 |
| Book Page | 5321/992 |
| Instrument | 2021005010 |
| Name | MICHIGAN FIRST CU |
|---|---|
| Type | Credit Union |
| Address | SOUTHFIELD, MI 48076 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Mar 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAINT CLAIR MI |
| Property Address | 503 LATHROP ST, ALGONAC, MI 48001-1694 |
| Transaction Type | Mortgage |
| Record Updated | Feb 26, 2021 |
| Title Company | CORPORATE SETTLEMENT SLN |
| Name | Verified Name |
|---|
| Document Number | 0053020287 |
|---|---|
| Date | Jan 14, 2021 |
| Book Page | 5302/287 |
| Instrument | 2021001129 |
| Name | MICHIGAN FIRST CU |
|---|---|
| Type | Credit Union |
| Address | SOUTHFIELD, MI 48076 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 163 Months |
| Due | Aug 24, 2034 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAINT CLAIR MI |
| Property Address | 503 LATHROP ST, ALGONAC, MI 48001-1694 |
| Document Number | 0051870247 |
| Instrument Date | Apr 1, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jun 4, 2020 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 503 LATHROP ST ALGONAC MI 480011694, ALGONAC, MI 48001-1694 |
| Document Number | 0051870247 |
|---|---|
| Date | May 14, 2020 |
| Book Page | 005187/000247 |
| Name | MORTGAGE 1 AT SUBURBAN |
|---|---|
| Type | Mortgage Company |
| Address | STERLING HEIGHTS, MI 48314 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | May 13, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAINT CLAIR MI |
| Property Address | 503 LATHROP ST, ALGONAC, MI 48001-1694 |
| Document Number | 0049080678 |
| Book / Page | 004908 / 000678 |
| Instrument Date | Jan 4, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Jan 31, 2018 |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 503 LATHROP ST ALGONAC MI 480011694, ALGONAC, MI 48001-1694 |
| Document Number | 0049080678 |
|---|---|
| Date | Jan 18, 2018 |
| Book Page | 004908/000678 |
| Name | MICHIGAN FIRST CU |
|---|---|
| Type | Credit Union |
| Address | LATHRUP VILLAGE, MI 48076 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Jan 17, 2033 |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAINT CLAIR MI |
| Property Address | 503 LATHROP ST, ALGONAC, MI 48001-1694 |
| Document Number | 0048890752 |
| Book / Page | 004889 / 000752 |
| Instrument Date | Oct 27, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jan 3, 2018 |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 503 LATHROP ST ALGONAC MI 480011694, ALGONAC, MI 48001-1694 |
| Document Number | 0048890752 |
|---|---|
| Date | Nov 13, 2017 |
| Book Page | 004889/000752 |
| Name | COUNTRYWIDE MTG FNDG |
|---|---|
| Type | Mortgage Company |
| Address | STERLING HEIGHTS, MI 48314 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Nov 12, 2047 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | SAINT CLAIR MI |
| Recording Date | Mar 24, 2017 |
| Property Address | 503 LATHROP ST, ALGONAC, MI 48001-1694 |
| Document Number | 0048110596 |
| Book / Page | 004811 / 000596 |
| Instrument Date | Mar 10, 2017 |
| Transaction Type | Transfer |
| Record Updated | Apr 21, 2017 |
| Title Company | ATTORNEY'S TITLE, ATTORNEYS TITLE AGENCY LLC |
| Amount | Amount Recorded |
|---|---|
| Tax | $5,332.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 765 MIDDLESEX RD GROSSE POINTE PARK MI 482301741, GROSSE POINTE PARK, MI 48230-1741 |
Source: St. Clair County assessment roll, as of September 17, 2026
| Type | Name |
|---|---|
| State | Michigan |
| Municipality | Algonac City |
| County | St. Clair County |
| Unified School District | Algonac Community School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $523,100 (+8.35%) | $1,046,200 (+8.35%) | |
| 2025 | $14,099.00 (+1.97%) Homeowner's exemption | $482,800 (+14.52%) | |
| 2024 | $13,827.00 (+11.76%) | $965,600 (+14.52%) | |
| 2023 | $421,600 | ||
| 2022 | $12,372.00 | $843,200 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective July 20, 2022 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 97 policies |
| Nearby Flood Policies | 97 in force |
| Nearby Flood Claims | 15 (1985–2019) |
| Claims Outside the SFHA | 5 of 15 |
| Most Recent Claim | Aug 2019 · river or lake 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.
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.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF ALGONAC serves 4,110 people · EPA ID MI0000110 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2026 |
| Lead | 3 ppb (2024–2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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.
Source: FCC Broadband Data Collection, based on 224 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
5G (outdoors only) and 4G LTE
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