Dubuque County, IA · Sold

IA-816313

870 County Road 290

$737,800

$13,850/ac · 53.27 ac

Offer report Market this tract

Acreage53.27 ac

Price per acre$13,850/ac

ZoningAgricultural

Road accessPaved

UtilitiesOff grid

TopographyMixed

ListedJul 7, 2026

Coordinates42.5298, -90.9254

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County GIS boundary

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County market

Dubuque County, Iowa. The benchmark corn-belt farmland market; auctions set transparent comps.

View Dubuque market data →

Step 1 · Is this a deal?

Due diligence

4 items to verify before you offer.

Risk index

Moderate risk

Wetlands19.6% of tract

Partial wetlands. Verify the delineated build envelope.

Average slope8.9%

Gentle grade, straightforward to develop.

Flood zoneShaded X

Moderate flood hazard on part of the tract.

Legal accessDeeded frontage

1,686 ft of deeded road frontage.

Power13,340 ft away

A long utility run — price in solar/off-grid instead.

Buildable area40.69 of 53.27 ac

Net of wetlands and slope constraints.

Step 2 · Where do the numbers land?

Adjusted value estimate

$615,809

$496,038 – $735,580 · $11,560/ac on 53.27 ac

Asking vs estimate

+19.8%

Priced above the comp set

Weighted from 10 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 $737,800

Acres

Resale ($/ac)

Target margin (%)

Hold (months)

Closing (%)

Carry (%/yr)

Selling costs (%)

Your offer

Maximum allowable offer

$351,891

$6,606/ac · +30.0% target margin

You need $385,909 off asking to hit this margin.

All-in cost$381,802

Net resale$566,544

Projected profit$184,743

ROI+48.4%

Annualized+69.2%

Break-even resale$7,791/ac

Profit if resale lands off target

-20%

$71,434

-10%

$128,088

$184,743

+10%

$241,397

+20%

$298,051

Comparable sales10 matches

Parcel	Acres	Sold	Price	$/ac	Adj $/ac	Dist	Match
IA-587093 Landlocked · Full utilities	93.7	Jul 27, 2026	$883,400	9,424	12,962	0.9 mi	79
IA-335640 Landlocked · Power at road	32.7	Mar 22, 2026	$279,100	8,531	11,686	7.8 mi	77
IA-864748 Dirt · Off grid	17.1	Jul 27, 2026	$140,700	8,204	9,404	5.3 mi	77
IA-227760 Paved · Off grid	152.0	Jul 27, 2026	$935,400	6,155	7,922	12.0 mi	76
IA-686059 Paved · Power at road	44.3	Nov 3, 2025	$675,400	15,239	12,901	9.7 mi	76
IA-915738 Landlocked · Full utilities	35.1	Jul 27, 2026	$483,600	13,769	15,422	9.3 mi	76
IA-265268 Landlocked · Off grid	25.0	Jul 27, 2026	$174,700	6,992	10,648	5.0 mi	76
IA-556591 Paved · Off grid	65.2	Aug 10, 2024	$499,800	7,671	8,683	7.3 mi	74
IA-214888 Dirt · Off grid	19.0	Apr 20, 2026	$217,900	11,481	13,472	10.4 mi	71
IA-217041 Dirt · Off grid	90.3	Feb 23, 2025	$693,300	7,681	12,589	3.7 mi	70

Show adjustment detail for the top comp

Tract size (93.74 ac → 53.27 ac)+13.5%
Access (Landlocked → Paved)+73.5%
Utilities (Full utilities → Off grid)-30.3%

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