20 Madison Avenue
About This Property
The existing layout spans multiple levels and includes numerous finished rooms, providing flexibility for reconfiguration into a traditional single-family residence with multiple bedrooms, living areas, and workspace options. A full finished basement with walk-out access adds additional usable space, while the expansive lot offers room for outdoor enjoyment, parking, or future enhancements.
The property features central air, public utilities, and a driveway with an 8-car parking lot. Conveniently located near the Taconic State Pway, 2 blocks from Metro North Valhalla stop on the Harlem Line, and local amenities, the location supports a variety of residential living needs.
Important: Property is being sold as-is. There is currently no Certificate of Occupancy, and the Town reports three open/expired permits. Buyer is responsible for all due diligence, permits, and any required approvals. A rare opportunity to bring new life to a property with strong fundamentals, generous space, and long-term potential.
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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%.
How much can I actually make?
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 |
|---|---|---|---|
| Sep 9, 2026 | Sold | ||
| Sold | |||
| May 15, 2026 | In contract | - | |
| In contract | |||
| Mar 9, 2026 | Listed by Hollingsworth Real Estate Grp. | $775,000 | |
| Listed by Hollingsworth Real Estate Grp. | |||
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Phone: 425-283-2930
Address: 335 Madison Avenue, New York, NY 10017