6 Big Sioux Road
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What does this mean?
Based on our analysis, the cap rate of this property is 1.25%. A negative cap rate indicates that the property might not be feasible as an income-producing asset. The median cap rate for a near zip code 11238 is 4.23%.
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Actual monthly rental income may vary between $4,760 and $7,140 depending on unit-specific characteristics. You can change the amount using the slider to further explore.
How is cap rate calculated?
Cap Rate = Net Operating Income (NOI) / Property Asset Value.
When calculating the cap rate, we assume 100% occupancy. Leverage (mortgage) is not considered.
Cap Rate provided by RealtyHop and RentHop, learn more about cap rate here.
Price History
| Date / Event | Date | Event | Price |
|---|---|---|---|
| Feb 13, 2026 | Sold | ||
| Sold | |||
| Jan 25, 2026 | In contract | - | |
| In contract | |||
| Dec 19, 2025 | Listed by Compass | $6,395,000 | |
| Listed by Compass | |||
| Nov 4, 2025 | Price Decreased |
$6,395,000
↓ $49K
(0.8%) | |
| Price Decreased | |||
| Sep 3, 2025 | Listed | $6,444,000 | |
| Listed | |||
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Set on a private 1-acre estate with south facing panoramic mountain views, new custom built 6,752 square foot residence blends luxury and mid-century with today’s most advanced technology and finishes. Enclosed behind 6-foot block walls and a wired security system, this property offers unmatched privacy. Entering through a 7ft wide 12ft tall custom pivot glass door, the great room opens to the outdoors with 40’ x 12’ automated pocketing glass walls, creating a seamless flow between living, dining, and entertaining. The chef’s kitchen is anchored by a 6.5 x 13 foot waterfall quartz island with seating for eight, dual dishwashers, commercial-grade Viking appliances, a custom vent hood, built-in espresso machine, and beverage station. Custom rift-sawn white oak cabinetry, imported Italian porcelain tile, and custom wide plank white oak engineered flooring elevate every detail. The main residence features 6,072 square feet, 5 bedrooms, 5 bathrooms, a formal powder room, temperature controlled wine cellar, including a primary suite with a private fireplace, floating dual vanities, Toto Neorest bidet, wet bar with wine fridge and its own climate zone and water heating system for ultimate comfort. A flexible bonus room offers endless possibilities—gym, office, or theater. The family room is designed for effortless entertaining, featuring a wet bar with dual refrigerators. The space has integrated surround sound. Extending the experience outdoors, the property is equipped with a whole-estate speaker system, including hidden speakers throughout the landscaping for seamless indoor-outdoor living. The spacious laundry room leads to the 4 car temperature controlled garage with epoxy flooring. Outdoors, a 500 sq. ft. entertainer’s cabana rivals any luxury resort with a full Viking kitchen, 36” barbecue with rotisserie, refrigerator, dishwasher, fireplace, TV, misting system, and full bath with outdoor shower. Entertain at the sparkling 60 foot pool with fountains, an app-controlled fire pit, and outdoor lounge areas complete the space. For guests, a detached 680 square foot casita provides a private oasis with a living area, bedroom, full bathroom, two high powered Mitsubishi AC units, kitchenette, and laundry. Every system in the home is designed for luxury: 5 Wi-Fi controlled HVAC zones, commercial-grade insulation, variable-zone cooling, tankless water heaters, concealed owned solar, custom lighting, surround sound, and whole-property misting and music systems.
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Phone: 425-283-2930
Address: 335 Madison Avenue, New York, NY 10017