0.50-acre lot for sale in St Clair, ON

$99,900 · St Clair, Lambton County, Ontario · 15 km from Wallaceburg

Advertised on Kijiji as “LOT 9 & 10 WILLIAM STREET St Clair, Ontario”

$99,900Asking price

0.50Acres

$199,800/acPrice per acre

below marketAcreScout value check

77% below the median $857,118/ac for the 21 lots of similar size in Lambton County.
AcreScout's value model, which compares it with the nearest listings of similar size, rates it below market.
No risk flags found in what we check (flood zones, wetland, access, taxes).
Listed July 3, 2026.

See this listing on the map with its value score, risk details and the all-in cost for your buyer profile. Open in AcreScout Listing on Kijiji

Similar-sized land in Lambton County

Listing	Price	Acres	Per acre	Water	Value
0.38-acre lot Chatham-Kent	$99,000	0.38	$264,000/ac		below market
0.38-acre lot Chatham-Kent	$99,000	0.38	$264,000/ac		below market
0.33-acre lot on a lake Lambton Shores	$225,000	0.33	$680,453/ac	Lakefront	below market
0.38-acre lot Sarnia	$299,900	0.38	$796,564/ac		above market
0.38-acre lot Sarnia	$329,900	0.38	$857,118/ac		above market
0.32-acre lot Sarnia	$299,900	0.32	$933,117/ac		near market
0.32-acre lot Sarnia	$299,900	0.32	$933,117/ac		near market
0.34-acre lot on a lake Lambton Shores	$455,900	0.34	$1,347,246/ac	Lakefront	above market