Valhalla 4-Lot Residential Development Opportunity Rare opportunity to acquire a four-parcel assemblage consisting of an existing residence and three additional separately deeded tax lots in a proven Valhalla location with strong new construction demand and established residential infrastructure, with a conceptual 4-lot single-family site plan based on the existing parcel configuration. Property Highlights: Four legally recognized lots (separate tax IDs) Dual frontage on Columbus Avenue and Arden Lane Public sewer and utilities available Zoned R10 (10,000 SF minimum lot size), allowing potential single-family subdivision under current zoning, subject to approvals. Conceptual 4-lot single-family plan available based on parcel configuration (see offering materials). Recent nearby development activity supports strong resale values, with new construction homes in the area trading from the high $700Ks to over $1.1M. Builders and investors have flexibility to develop all four homes or phase construction while utilizing the existing residence for rental income or future redevelopment. The property's topography is well-suited for modern builds, including walk-out basements and tiered designs consistent with surrounding new construction. Location highlights: o Top-rated schools oLess than 1 hour to NYC o Close to major highways + Metro-North o Near Kensico Dam Plaza, parks, and local community amenities Conceptual plans and supporting materials available upon request.

Property Details of 18 Columbus Avenue

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Listed by Coldwell Banker Realty / Stephanie Smith (914-232-7000)

Listings courtesy of OneKey® MLS as distributed by MLS GRID. Based on information submitted to the MLS GRID as of June 20, 2026 9:19 AM UTC. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. IDX information is provided exclusively for consumers’ personal noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. The use of the MLS GRID Data may be subject to an end user license agreement.

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