Dewey County, SD · Sold

SD-459471

9899 County Road 400

$1,165,700

$1,110/ac · 1,050 ac

Offer report Market this tract

Acreage1,050 ac

Price per acre$1,110/ac

ZoningUnzoned

Road accessGravel

UtilitiesFull utilities

TopographyRolling

ListedAug 15, 2025

Coordinates45.1880, -100.9350

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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

Dewey County, South Dakota. West River grazing and Black Hills recreational parcels.

View Dewey market data →

Step 1 · Is this a deal?

Due diligence

2 items to verify before you offer.

Risk index

Low risk

Wetlands10.2% of tract

Little to no mapped wetland coverage.

Average slope9.0%

Gentle grade, straightforward to develop.

Flood zoneShaded X

Moderate flood hazard on part of the tract.

Legal accessRecorded easement

Access by easement; pull and read the recorded document.

PowerOn site

Power at or near the road.

Buildable area895.55 of 1049.76 ac

Net of wetlands and slope constraints.

Step 2 · Where do the numbers land?

Adjusted value estimate

$1,019,280

$775,265 – $1,263,294 · $971/ac on 1,050 ac

Asking vs estimate

+14.4%

Priced above the comp set

Weighted from 9 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 $1,165,700

Acres

Resale ($/ac)

Target margin (%)

Hold (months)

Closing (%)

Carry (%/yr)

Selling costs (%)

Your offer

Maximum allowable offer

$582,446

$555/ac · +30.0% target margin

You need $583,254 off asking to hit this margin.

All-in cost$631,954

Net resale$937,737

Projected profit$305,783

ROI+48.4%

Annualized+69.2%

Break-even resale$654/ac

Profit if resale lands off target

-20%

$118,236

-10%

$212,010

$305,783

+10%

$399,557

+20%

$493,331

Comparable sales9 matches

Parcel	Acres	Sold	Price	$/ac	Adj $/ac	Dist	Match
SD-839297 Gravel · Off grid	925.4	Jul 27, 2026	$801,700	866	1,198	2.5 mi	88
SD-569210 Dirt · Full utilities	868.9	May 13, 2026	$660,700	760	843	9.5 mi	84
SD-918591 Landlocked · Off grid	554.9	Apr 6, 2026	$239,200	431	759	1.4 mi	79
SD-339393 Landlocked · Off grid	992.1	Nov 5, 2025	$452,600	456	977	4.6 mi	79
SD-309035 Gravel · Off grid	765.5	Dec 21, 2025	$478,400	625	836	10.2 mi	79
SD-849094 Gravel · Power at road	798.9	Oct 25, 2024	$776,200	972	1,172	11.4 mi	73
SD-158753 Gravel · Off grid	624.0	Jun 18, 2024	$672,500	1,078	1,437	1.6 mi	69
SD-759968 Paved · Full utilities	1504.7	Aug 29, 2024	$1,261,100	838	860	7.9 mi	68
SD-618408 Gravel · Full utilities	486.0	Oct 17, 2024	$365,400	752	639	7.0 mi	66

Show adjustment detail for the top comp

Tract size (925.44 ac → 1049.76 ac)-3.8%
Utilities (Off grid → Full utilities)+43.5%

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