William Squires Of Real 1 Realty Represents Buyer In $8.3M Naperville Luxury Estate Sale
28w660 Perkins Court
$8,300,000
$388/SF
Building Size
21,361 SF
Asset Type
Single Family
Closing
Jul 10, 2026
AI
A 21,361-square-foot luxury estate located at 28w660 Perkins Court in Naperville, IL, was sold for $8,300,000. This single-family property, set on 2.96 acres, achieved a price per square foot of $389, marking a significant financial milestone for the area.
Summary of transaction details:
- Property Type: Single Family
- Transaction Amount: $8,300,000
- Address: 28w660 Perkins Court
- Market: Naperville, IL
- Asset Size: 21,361 SF
- Price Per Square Foot: $389
- Buyer's Representative: William Squires - Real 1 Realty
- Seller's Representative: Katherine Karvelas - Christie's International Real Estate
- Acres: 2.96
The deal was represented by William Squires, acting on behalf of the buyer, and Katherine Karvelas, representing the seller. This transaction set a record, being the highest residential sale ever recorded in both Naperville and Will County, highlighting the rising demand for ultra-luxury homes in Chicago’s western suburbs.
Players
Naperville Single Family Market Snapshot
Boundary boundary · Single Family · Sale transactions
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Purchase Price
Annual NOI
Loan Amount
Interest Rate (%)
Loan Term (yrs)
Down Payment (%)
Cap Rate
1.91%
Cash-on-Cash
-0.55%
Monthly Payment
$14,164
Annual Debt Svc
$169,964
Annual Cash Flow
$-11,334
DSCR
0.93