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Corson County, SD · Sold

SD-498760

399 County Road 65

$626,600
$999/ac · 627 ac
Acreage627 ac
Price per acre$999/ac
ZoningResidential
Road accessGravel
UtilitiesOff grid
TopographySloped
ListedMay 16, 2026
Coordinates45.6488, -101.1566
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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

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

View Corson market data →

Step 1 · Is this a deal?

Due diligence

3 items to verify before you offer.

Risk index
19
Low risk
Wetlands0.1% of tract

Little to no mapped wetland coverage.

Average slope15.1%

Rolling to steep in places; pad prep likely.

Flood zoneX

Outside the mapped floodplain.

Legal accessDeeded frontage

4,906 ft of deeded road frontage.

Power11,660 ft away

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

Buildable area501.25 of 627.19 ac

Net of wetlands and slope constraints.

Step 2 · Where do the numbers land?

Adjusted value estimate
$562,644
$441,141$684,147 · $897/ac on 627 ac
Asking vs estimate
+11.4%
Priced above the comp set

Weighted from 5 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 $626,600
Maximum allowable offer
$321,511
$513/ac · +30.0% target margin

You need $305,089 off asking to hit this margin.

All-in cost$348,839
Net resale$517,633
Projected profit$168,793
ROI+48.4%
Annualized+69.2%
Break-even resale$605/ac
Profit if resale lands off target
-20%
$65,267
-10%
$117,030
0%
$168,793
+10%
$220,556
+20%
$272,320
Comparable sales5 matches
ParcelAcresSoldPrice$/acAdj $/acDistMatch
SD-698909
Gravel · Power at road
698.7Aug 7, 2024$512,9007347005.7 mi
74
SD-736961
Gravel · Full utilities
170.4Oct 24, 2025$344,9002,0249975.5 mi
69
SD-207245
Dirt · Power at road
209.3Jul 27, 2026$263,3001,2589027.5 mi
68
SD-187694
Dirt · Off grid
289.8May 4, 2025$207,3007156964.6 mi
67
SD-186676
Dirt · Power at road
138.6Jul 27, 2026$262,8001,8961,2156.7 mi
65
Show adjustment detail for the top comp
  • Tract size (698.68 ac → 627.19 ac)+3.4%
  • Utilities (Power at road → Off grid)-15.0%
  • Market time (24 mo)+8.5%

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.