Mackinac County, MI · Sold

MI-137130

9807 County Road 309

$316,300

$3,011/ac · 105 ac

Offer report Market this tract

Acreage105 ac

Price per acre$3,011/ac

ZoningAgricultural

Road accessGravel

UtilitiesFull utilities

TopographyRolling

ListedJun 9, 2024

Coordinates46.1150, -85.3893

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County GIS boundary

We do not yet have an active public ArcGIS connection for this county. Use the official source link to verify the parcel boundary and flood/zoning layers.

County market

Mackinac County, Michigan. Northern Lower Peninsula recreational parcels and inland lake frontage.

View Mackinac market data →

Step 1 · Is this a deal?

Due diligence

3 items to verify before you offer.

Risk index

Low risk

Wetlands16.8% of tract

Partial wetlands. Verify the delineated build envelope.

Average slope8.6%

Gentle grade, straightforward to develop.

Flood zoneShaded X

Moderate flood hazard on part of the tract.

Legal accessDeeded frontage

1,164 ft of deeded road frontage.

PowerOn site

Power at or near the road.

Buildable area83.02 of 105.04 ac

Net of wetlands and slope constraints.

Step 2 · Where do the numbers land?

Adjusted value estimate

$397,193

$318,233 – $476,153 · $3,781/ac on 105 ac

Asking vs estimate

-20.4%

Priced below the comp set

Weighted from 8 recorded sales, adjusted for tract size, access, utilities and time since sale. Range width reflects dispersion across the comp set.

AI deal brief

Comps, diligence flags, an offer number and what to ask the seller.

Offer calculatorAsking $316,300

Acres

Resale ($/ac)

Target margin (%)

Hold (months)

Closing (%)

Carry (%/yr)

Selling costs (%)

Your offer

Maximum allowable offer

$226,967

$2,161/ac · +30.0% target margin

You need $89,333 off asking to hit this margin.

All-in cost$246,259

Net resale$365,417

Projected profit$119,158

ROI+48.4%

Annualized+69.3%

Break-even resale$2,548/ac

Profit if resale lands off target

-20%

$46,075

-10%

$82,616

$119,158

+10%

$155,700

+20%

$192,242

Comparable sales8 matches

Parcel	Acres	Sold	Price	$/ac	Adj $/ac	Dist	Match
MI-829327 Gravel · Full utilities	515.9	Jul 27, 2026	$1,308,100	2,536	3,974	7.6 mi	69
MI-434952 Gravel · Off grid	21.7	Jul 27, 2026	$92,500	4,267	4,514	8.4 mi	67
MI-825539 Gravel · Off grid	33.2	Sep 18, 2024	$130,000	3,920	4,765	2.6 mi	67
MI-396588 Landlocked · Off grid	70.9	Dec 12, 2024	$153,500	2,163	4,453	8.1 mi	66
MI-618241 Paved · Off grid	234.9	Sep 29, 2025	$397,300	1,691	2,646	7.2 mi	65
MI-284990 Gravel · Off grid	22.3	Jun 13, 2025	$68,800	3,087	3,431	6.3 mi	60
MI-129217 Paved · Power at road	476.4	Apr 10, 2025	$847,300	1,779	2,966	5.7 mi	57
MI-269237 Landlocked · Off grid	483.3	Feb 7, 2024	$423,600	877	3,137	12.7 mi	48

Show adjustment detail for the top comp

Tract size (515.88 ac → 105.04 ac)+56.4%

Step 3 · Market it

Turn this underwriting into a listing

Generate a comp-priced headline, listing description, land-group post and cash-buyer email for this tract — then post it to the investor marketplace.

Build the listing kit Post a deal or JV