Nappan Island presents an extraordinary opportunity on Seymour Lake, part of the renowned Trent Severn Waterway. Spanning approximately 311 acres with road access, just 25 minutes from Peterborough and less than two hours from Toronto, this remarkable property offers incredible scale, waterfront and potential. A proposed 69 unit, two phase residential development envisions a collection of generous waterfront and forested lots. In 2018, the Municipality of Trent Hills approved Subdivision Application SB01/2017, providing conditions for final Draft Plan Approval, followed in 2019 by a zoning amendment to permit the creation of single detached homes and a commercial building. Significant due diligence has already been completed, including survey work, site plans, land servicing cost estimates, archaeological studies, environmental assessment and stormwater management reports, all available through the listing brokerage. Predominantly level, the property features hardwood and softwood forest, cleared areas and spectacular lake and river shoreline. Beyond development, the possibilities are exceptional. Envision an unparalleled multigenerational family retreat or private compound, fishing or hunting camp, golf course destination or another inspired recreational vision, subject to applicable approvals. Panoramic water views, pristine forest, incredible sunrises and sunsets and four season recreation create a truly remarkable setting. A charming five bedroom waterfront cottage sits at the northwest point. Believed to be the last property of its kind in the region designated for development of this nature, Nappan Island is a rare opportunity to create something extraordinary.
A once-in-a-lifetime private island retreat, Nappan Island offers 311 acres of untouched wilderness, 3,800 feet of stunning shoreline, and breathtaking views of Seymour Lake on the Trent-Severn Waterway. This ultra-exclusive estate is perfect for those seeking privacy, luxury, and limitless recreational potential - whether as a secluded family compound, private hunt camp, or world-class outdoor escape. With expansive waterfront, panoramic lake views, and forested trails, this island is an unparalleled setting for adventure and relaxation. A 4-bedroom waterfront cabin sits right at the waters edge, blending rustic charm with modern comfort, making it an ideal base for boating, fishing, hunting, hiking, and year-round enjoyment. Offering endless potential, Nappan Island presents a rare opportunity to expand into a luxury multi-residence compound while preserving the tranquility and exclusivity of a true island sanctuary. Access is effortless with a newly installed municipal bridge, ensuring year-round convenience while maintaining the ultimate sense of seclusion. With its pristine shoreline, sweeping lake views, and rare development potential, Nappan Island is an irreplaceable offering in Ontario's luxury waterfront market.
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Public record
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Single Family Residential
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Northumberland County
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Last updated by owner on Aug 18, 2026.
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