Grosse Ile Township property taxes & housing data
Grosse Ile Township is taxed at 44.1934 mills across 1 school district. That is 5.89 mills below the Wayne County median and 11.59 mills above the Southeast Michigan median — the 14th lowest of 43 municipalities in the county, and 180 of 236 region-wide.
Rates by school district
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| Grosse Ile Township Schools | 44.1934 | 61.5843 | $5,524 | $7,734 | $11,048 |
Homestead (PRE) applies to your primary residence. Non-homestead applies to rentals and second homes. Dollar columns are the annual bill at the uncapped taxable value — half the purchase price — at the homestead rate.
How Grosse Ile Township compares in Wayne County
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| Plymouth | 40.9761 | $7,171 |
| Northville | 42.1693 | $7,380 |
| Redford Township | 43.3459 | $7,586 |
| Westland | 43.4785 | $7,609 |
| Grosse Ile Township | 44.1934 | $7,734 |
| Romulus | 44.9077 | $7,859 |
| Dearborn Heights | 46.7774 | $8,186 |
| Riverview | 47.5445 | $8,320 |
| Allen Park | 47.8721 | $8,378 |
← Westland (lower) · Romulus (higher) →
For sale in Grosse Ile Township right now
27 active listings in Grosse Ile Township — the 6 newest below. Remember: every one of them uncaps the year after closing, so the bill you should budget is the uncapped one above, not the seller's.
$499,900
18219 Cardinal Avenue · Grosse Ile Township
4 bd · 3 ba · 4,320 sqft
Listing courtesy of Carol Bollo & Associates
$355,000
21102 Knudsen DR · Grosse Ile Township
3 bd · 2 ba · 1,937 sqft
Listing courtesy of RE/MAX Leading Edge
$349,000
28731 Elbamar DR · Grosse Ile Township
4 bd · 2 ba · 1,638 sqft
Listing courtesy of MBA Realty
$1,125,000
29495 E River RD · Grosse Ile Township
4 bd · 4 ba · 3,037 sqft
Listing courtesy of MBA Realty
$98,000
24111 Meridian RD # 112 · Grosse Ile Township
1 bd · 1 ba · 650 sqft
Listing courtesy of Carol Bollo & Associates
$342,000
9876 Hawthorne Glen Drive · Grosse Ile Township
3 bd · 2 ba · 1,743 sqft
Listing courtesy of River Oaks Realty
IDX provided courtesy of Realcomp II Ltd. via Match Realty LLC and Realcomp II Ltd, ©2026 Realcomp II Ltd. Shareholders. The accuracy of all information, regardless of source, is not guaranteed or warranted. All information should be independently verified. Listings refreshed 2026-11-03T10:57+00:00; refreshed at least twice daily.
Waterfront in Grosse Ile Township: Detroit River — recorded sale prices and all-sports status for the lake.
Compare Grosse Ile Township with another community
Grosse Ile Township has 4 side-by-side comparisons. Dollar columns are the annual homestead bill on a $350,000 home at the uncapped taxable value, and the last column is the difference against Grosse Ile Township.
| Comparison | Their lowest millage | Annual tax on $350,000 | vs Grosse Ile Township |
|---|---|---|---|
| Grosse Ile Township vs Dearborn Heights | 46.7774 | $8,186 | +$452 |
| Grosse Ile Township vs Redford Township | 43.3459 | $7,586 | −$148 |
| Grosse Ile Township vs Westland | 43.4785 | $7,609 | −$125 |
| Grosse Ile Township vs Romulus | 44.9077 | $7,859 | +$125 |
Look up, pay and appeal your Grosse Ile Township taxes
Grosse Ile Township bills twice a year. The summer bill is issued July 1 and the winter bill December 1; most communities make them due September 14 and February 14, and anything still unpaid on March 1 moves to the county treasurer as delinquent, with interest added monthly. Both bills are collected by the Grosse Ile Township treasurer, so the balance on a specific parcel is on the city or township site first (most of Southeast Michigan uses BS&A Online for this) and on the county site once it is late.
- Wayne County tax lookup (pta.waynecounty.com) — parcel and tax search for Wayne County addresses.
- Wayne County Treasurer — where a bill goes once it is delinquent: balances, payment plans and the hardship deferral.
- Estimate a bill before you look one up — the figure on the current owner's statement is capped; this gives you the uncapped one.
Appealing the assessment
Assessment notices go out in late February. If the assessed value is more than half of what the house would actually sell for, the appeal runs in two steps and the first one cannot be skipped: the March Board of Review in Grosse Ile Township (dates and the petition form are on the assessor's notice), then, if the board does not move, a petition to the Michigan Tax Tribunal by July 31 for residential property. The July and December boards do not re-value: they correct qualified errors (clerical mistakes, mutual mistakes of fact, a wrong principal residence exemption) and hear poverty exemptions. A successful appeal lowers the assessed value, not the millage — the 44.1934 mills above apply to whatever value stands after it.
A home bought this year is a special case: the taxable value uncaps to the assessed value next year regardless of the appeal, so the number to check on the first notice after closing is the assessed value against the price you paid.
What it's like to own in Grosse Ile Twp
Beyond the tax rate, three things shape what owning in Grosse Ile Twp actually costs: the age of the homes, what the water utility reports at the tap, and what local air testing has turned up. Each figure below carries the date of the survey it came from.
Housing stock
1967
average year built · 2,392 sqft average across 3,797 single-family homes
SEMCOG Buildings_2024
Lead in drinking water
19 ppb
90th percentile for Grosse Ile Township · above Michigan's 12 ppb action level. Water systems over the action level must take corrective steps. Sampled at the fifth liter, which deliberately draws water that sat in the service line and reads higher by design — not comparable to systems that sample standard.
EGLE / MDHHS water-system monitoring, periods ending 2025-12-31
Radon
3.66 pCi/L
average across 86 home tests · 27% above the EPA 4 pCi/L action level — elevated. ZIP 48138.
MDHHS indoor radon test results by ZIP
Lead is measured at the water system, not the house — it cannot tell you whether a specific property has a lead service line. Radon is a ZIP-level test distribution, not a prediction for any one home; the EPA recommends testing every home regardless. Screening information only.
Common questions
What is the property tax rate in Grosse Ile Township, Michigan?
Grosse Ile Township is taxed at 44.1934 mills for a homestead (principal residence) under the official 2025 Michigan Department of Treasury millage report. On a $350,000 home at the uncapped taxable value that is about $7,734 a year.
Does the tax rate change by address within Grosse Ile Township?
No. All of Grosse Ile Township sits in Grosse Ile Township Schools, so the millage is 44.1934 at every address in the municipality. Your bill still changes after you buy, because it is recalculated on the uncapped taxable value rather than the seller's capped one.
How much are property taxes on a $350,000 home in Grosse Ile Township?
About $7,734 a year at the homestead rate. Michigan taxes the taxable value, not the sale price, and after a sale that value uncaps to roughly half what you paid — so $350,000 is taxed on about $175,000.
Why is the tax bill on a Grosse Ile Township listing lower than what I would pay?
Because the figure on the listing is the seller's. Michigan caps annual taxable-value growth while an owner keeps the property, and that cap is removed the year after it sells. The longer the seller owned it, the further their bill sits below yours.
How does Grosse Ile Township compare with the rest of Wayne County?
It is the 14 lowest of 43 municipalities in Wayne County and 180 of 236 across the eight-county region — 5.89 mills below the county median.
How do I look up or pay my Grosse Ile Township property tax bill?
Summer and winter bills are collected by the Grosse Ile Township treasurer, so the balance on a parcel is on the municipality's own site (usually BS&A Online). Once a bill is delinquent — March 1 — it moves to the Wayne County Treasurer, whose parcel search covers every address in the county.
How do I appeal my Grosse Ile Township property tax assessment?
Petition the Grosse Ile Township March Board of Review first — the dates are on the assessment notice mailed in late February — and, if that fails, the Michigan Tax Tribunal by July 31 for residential property. The board step is mandatory; the Tribunal will not hear a residential appeal that skipped it. An appeal changes the assessed value, not the millage (44.1934 mills).
Is down payment assistance available for homes in Grosse Ile Township?
Likely, but verify per program: 95% of the 120 Grosse Ile Township sales evaluated by Down Payment Resource over the last 12 months were flagged as potentially matching at least one assistance program. The flag is an indicator, not a promise — compare the programs and check your numbers.
What your Grosse Ile Township taxes become after you buy
Michigan taxable value uncaps the year after a sale and resets to roughly half the purchase price. The calculator below is already set to Grosse Ile Township — enter a price and the seller's current taxable value.
Uncapping calculator
When a Michigan home changes hands, its taxable value uncaps the following year and resets to roughly half the sale price. Buyers routinely get blindsided by a bill that's thousands higher than the listing showed. Here's your actual number.
What will your tax bill be after closing?
Your taxable value uncaps the year after closing and resets to roughly half the purchase price — so a $350,000 home is taxed on about $175,000, whatever the seller was paying. Enter the price and the current taxable value below.