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King County, WA · Sold

WA-882400

4478 County Road 187

$21,100
$5,302/ac · 3.98 ac
Acreage3.98 ac
Price per acre$5,302/ac
ZoningResidential
Road accessGravel
UtilitiesOff grid
TopographyRolling
ListedApr 9, 2024
Coordinates47.3858, -121.7406
Loading terrain…
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

King County, Washington. Eastern Washington irrigated ground and Cascade foothill lots.

View King market data →

Step 1 · Is this a deal?

Due diligence

4 items to verify before you offer.

Risk index
20
Low risk
Wetlands12.0% of tract

Partial wetlands. Verify the delineated build envelope.

Average slope4.0%

Gentle grade, straightforward to develop.

Flood zoneShaded X

Moderate flood hazard on part of the tract.

Legal accessDeeded frontage

497 ft of deeded road frontage.

Power12,654 ft away

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

Buildable area3.33 of 3.98 ac

Net of wetlands and slope constraints.

Step 2 · Where do the numbers land?

Adjusted value estimate
$23,751
$19,050$28,452 · $5,967/ac on 3.98 ac
Asking vs estimate
-11.2%
Priced below 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 $21,100
Maximum allowable offer
$13,572
$3,410/ac · +30.0% target margin

You need $7,528 off asking to hit this margin.

All-in cost$14,726
Net resale$21,851
Projected profit$7,125
ROI+48.4%
Annualized+69.2%
Break-even resale$4,022/ac
Profit if resale lands off target
-20%
$2,755
-10%
$4,940
0%
$7,125
+10%
$9,310
+20%
$11,495
Comparable sales10 matches
ParcelAcresSoldPrice$/acAdj $/acDistMatch
WA-682335
Paved · Power at road
3.8Jul 27, 2026$28,9007,6055,48113.1 mi
81
WA-503436
Gravel · Full utilities
8.4Jul 27, 2026$42,1004,9863,6226.2 mi
76
WA-581702
Dirt · Off grid
2.4Jul 27, 2026$14,2005,9036,77510.9 mi
76
WA-803301
Landlocked · Off grid
7.7May 12, 2026$28,7003,7545,7685.6 mi
75
WA-823479
Paved · Off grid
8.7Jul 27, 2026$59,9006,8806,09111.7 mi
71
WA-883286
Landlocked · Off grid
7.6Nov 3, 2025$29,6003,9126,13713.6 mi
71
WA-584020
Paved · Full utilities
12.9Jun 1, 2026$167,40012,9978,33913.7 mi
67
WA-791458
Dirt · Full utilities
2.0Jul 9, 2025$13,4006,6905,56310.9 mi
63
WA-893369
Paved · Power at road
8.0Jun 13, 2025$71,4008,8846,96210.0 mi
63
WA-224057
Paved · Off grid
13.2Mar 22, 2025$70,7005,3465,1818.4 mi
59
Show adjustment detail for the top comp
  • Access (Paved → Gravel)-15.3%
  • Utilities (Power at road → Off grid)-15.0%

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.