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Sonoma County, CA · Sold

CA-865285

9218 County Road 338

$316,800
$8,609/ac · 36.80 ac
Acreage36.80 ac
Price per acre$8,609/ac
ZoningResidential
Road accessDirt
UtilitiesOff grid
TopographyWooded
ListedNov 4, 2024
Coordinates38.5889, -123.0411
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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

Sonoma County, California. Wide spread between Central Valley ag ground and buildable foothill parcels.

View Sonoma market data →

Step 1 · Is this a deal?

Due diligence

4 items to verify before you offer.

Risk index
28
Low risk
Wetlands18.2% of tract

Partial wetlands. Verify the delineated build envelope.

Average slope6.8%

Gentle grade, straightforward to develop.

Flood zoneShaded X

Moderate flood hazard on part of the tract.

Legal accessDeeded frontage

1,102 ft of deeded road frontage.

Power9,420 ft away

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

Buildable area28.60 of 36.80 ac

Net of wetlands and slope constraints.

Step 2 · Where do the numbers land?

Adjusted value estimate
$351,645
$279,504$423,786 · $9,556/ac on 36.80 ac
Asking vs estimate
-9.9%
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 $316,800
Maximum allowable offer
$200,940
$5,460/ac · +30.0% target margin

You need $115,860 off asking to hit this margin.

All-in cost$218,020
Net resale$323,514
Projected profit$105,494
ROI+48.4%
Annualized+69.2%
Break-even resale$6,440/ac
Profit if resale lands off target
-20%
$40,791
-10%
$73,142
0%
$105,494
+10%
$137,845
+20%
$170,196
Comparable sales8 matches
ParcelAcresSoldPrice$/acAdj $/acDistMatch
CA-145677
Dirt · Full utilities
48.9Jul 27, 2026$526,30010,7677,9299.5 mi
85
CA-805920
Dirt · Full utilities
58.3Jul 7, 2026$566,2009,7147,43310.5 mi
77
CA-625284
Gravel · Power at road
36.8Oct 16, 2025$675,20018,36413,89014.5 mi
74
CA-165102
Paved · Power at road
32.2Nov 24, 2023$480,10014,89710,0557.4 mi
72
CA-945994
Dirt · Power at road
61.5Nov 23, 2025$670,10010,89610,55615.3 mi
68
CA-763568
Gravel · Power at road
10.6Apr 28, 2026$140,10013,2068,3365.8 mi
66
CA-194188
Paved · Off grid
16.6Nov 15, 2025$220,20013,2488,87614.1 mi
65
CA-486619
Dirt · Off grid
96.7May 28, 2024$687,7007,1109,54010.7 mi
60
Show adjustment detail for the top comp
  • Tract size (48.88 ac → 36.8 ac)+5.5%
  • 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.