Updated Oct 28, 2026
Edward St. John Of St. John Properties Acquires Mansion In Jupiter For $34.5M
176 Spyglass Lane
$34,500,000
$1,796/SF
Building Size
19,200 SF
Asset Type
Single Family
Closing
Oct 28, 2026
About this deal
AI
The property asset involved in the transaction is a single-family home located at 176 Spyglass Lane in Jupiter, FL. This waterfront mansion spans an area of 19,200 square feet and sits on a 1.5-acre lot. The sale price of the property was $34,500,000, translating to a price per square foot of $1,797.
Summary of transaction details:
- Property Type: Single Family
- Transaction Amount: $34,500,000
- Address: 176 Spyglass Lane
- Market: Jupiter, FL
- Acres: 1.5
- Buyer: Edward St. John - St. John Properties, Inc.
- Seller: George & Sarah McMahon
- Broker: Rob Thomson - Waterfront Properties and Club Communities
- Square Footage: 19,200
- Price Per Square Foot: $1,797
The transaction involved key individuals, with Edward St. John purchasing the property through an entity associated with St. John Properties, Inc. The sellers, George and Sarah McMahon, are investment firm co-founders. Rob Thomson represented both sides of the transaction, facilitating the deal in Jupiter’s Admirals Cove.
On the Map
$34,500,000
$1,796/SF
Single Family
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Players
Jupiter 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
0.46%
Cash-on-Cash
-0.13%
Monthly Payment
$14,164
Annual Debt Svc
$169,964
Annual Cash Flow
$-11,334
DSCR
0.93