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Lake County Gazette

Thursday, June 5, 2025

For sale: 15 priciest homes on the market in Lake Forest

Lake forest top home

405 N Mayflower Rd | Zillow.com

405 N Mayflower Rd | Zillow.com

If you’re looking to pay top dollar in Lake Forest, prices range from $4.495 million to $9.45 million, according to real estate site Zillow.

A 25,000-square-foot home listed for $9.45 million has sat on the market for more than nine years. Property taxes at that address were reported to be $144,204 in 2016 – an effective tax rate of 1.53 percent.

The effective property tax rate refers to the percentage of a home's value the owner pays in property taxes each year. In Illinois, the average homeowner pays 2.3 percent of their home value in property taxes – much higher than homeowners in Indiana (0.87 percent) and Colorado (0.60 percent). 

What rates will high-end buyers pay?

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Most Expensive Homes for Sale in Lake Forest

AddressBedsBathsSquare FeetAsking PriceDays on ZillowPrice per square foot
405 N Mayflower Rd10

25,000$9,450,0003,413$378
275 Sussex Ln81113,814$7,900,000199$572
395 N Green Bay Rd91314,293$7,500,000377$525
1601 Conway Rd68

$6,500,000777

111 E Onwentsia Rd6813,575$5,800,00023$427
815 E Deerpath Rd678,706$5,495,000360$631
1051 Meadow Ln7812,320$5,200,0001,050$422
765 W Westleigh Rd7108,771$4,950,000249$564
327 N Mayflower Rd6109,924$4,950,000990$499
1421 Lake Rd777,691$4,950,000407$644
51 N Green Bay Rd587,398$4,900,00058$662
1200 Lake Rd6107,818$4,750,000129$608
980 E Illinois Rd685,930$4,599,000654$776
303 S Green Bay Rd71215,411$4,499,000223$292
930 S Ridge Rd6117,053$4,495,000275$637
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Upper Bracket: Lake Forest Effective Property Tax Rates

AddressAsking Price2016 TaxesEffective Tax Rate at Ask
327 N Mayflower Rd$4,950,000$88,5171.79%
1421 Lake Rd$4,950,000$88,0511.78%
1200 Lake Rd$4,750,000$81,4941.72%
303 S Green Bay Rd$4,499,000$77,0041.71%
405 N Mayflower Rd$9,450,000$144,2041.53%
1051 Meadow Ln$5,200,000$68,0711.31%
395 N Green Bay Rd$7,500,000$83,9341.12%
930 S Ridge Rd$4,495,000$49,1751.09%
111 E Onwentsia Rd$5,800,000$59,1871.02%
765 W Westleigh Rd$4,950,000$47,4300.96%
51 N Green Bay Rd$4,900,000$40,5750.83%
275 Sussex Ln$7,900,000$36,7200.46%
Source for all: Zillow.com

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