A rare piece of midcentury architecture is on the market in rural Hunterdon County, where the Wave House — famous for its rippling, undulating roofline — has been listed for $2.6 million in West Amwell Township. Designed and built in 1960 by architect Jules Gregory, the roughly 1,600-square-foot main house sits on 10 acres and comes paired with a fully remodeled guest studio that once served as Gregory's own drafting workspace.
The listing, reported by NJ.com, describes a four-bedroom, two-bathroom main house defined by its curvy roofline, double- and triple-panel glass doors, a glass back wall, and a patio that opens onto the surrounding property. Grant Wagner of Callaway Henderson Sotheby's International Realty, who listed the home alongside colleague David M. Schure, told the outlet that the roofline “flows through the spaces by expanding and compressing.” Schure described the property as akin to “collecting a piece of art that can be lived in,” per the same report.
A Drafting Studio Turned Two-Bedroom Guest House
The 10-acre property includes a separate studio, located about 350 feet from the main house and connected to it by a bridge crossing a stream and tree line, according to NJ.com. Gregory originally used that structure as his own architectural workspace before the current owners remodeled it into a two-bedroom, two-bathroom guest house complete with a modern kitchen and two ensuite bedrooms. That studio-to-guesthouse transformation echoes earlier reporting from Philadelphia Magazine, which noted the detached space was physically separated from the main residence by a natural stream crossed by a footbridge and had been converted into a modern two-bedroom guesthouse by architect-owners.
Wagner told NJ.com that the property offers privacy while remaining close to Lambertville and Philadelphia — a balance reflected in its location roughly 2.5 miles from Lambertville, about 40 miles from Philadelphia, some 15 miles from the Trenton train station, and 72 miles from Manhattan. Schure reported that clients abroad and people across the country have expressed interest since the listing went live, and the property has already received a lot of interest, per the outlet's reporting.
Engineering Behind the Famous Roofline
The house's signature wave shape was no accident of style. According to New York Magazine, the roofline was a double-conoid design with three ripples on one side and two on the other. The home also has clerestory windows, while the fir ceiling appears to float above the living spaces. Interior partition walls were deliberately built to stop short of the ceiling, keeping the roofline visually continuous throughout the home, the magazine reported.
Gregory built the home using fieldstone gathered directly from the property for its walls and fireplaces, combined with Pacific Northwest white fir and Colorado pine for interior paneling and framing, according to Old House Dreams. That approach was meant to merge the interior living spaces directly into the surrounding forest, the listing site noted. The home also originally featured custom lighting and furniture crafted by midcentury designer George Nakashima, a local designer, Philadelphia Magazine reported.
Gregory's Wider Legacy Beyond One House
Jules Gregory and his wife moved to Lambertville in 1950, and he used the West Amwell property as both his home and his workplace, per NJ.com. Before settling into architecture full time, Gregory worked in construction in Alaska during World War II and later studied at the École de Beaux Arts in Paris, the outlet reported. He went on to become an architect and urban planner whose portfolio extended well beyond residential design, including Marlboro Middle School, the William S. Hart Sr. East Orange Middle School, Kilmer Library at Rutgers University, and Luther Memorial Evangelical Lutheran Church in New Shrewsbury, according to NJ.com's reporting.
Gregory's national standing in the profession was substantial. He received a Fulbright scholarship and later served as a New Jersey AIA vice president and R/UDAT coordinator, according to Wikipedia. His design work on the Wave House itself drew early acclaim, too — in 1961, the house was named one of the top 10 homes in the country, per Philadelphia Magazine's account.
A Market That Has Shifted Since 2014
The Wave House has changed hands and changed price points more than once over the past two decades. Gregory's estate sold the property in 2006, and it was listed in 2012 at $1.25 million and later priced below $1 million, according to Philadelphia Magazine's 2015 reporting. New York Magazine's 2014 coverage put the asking price at that time at $899,000. Later sources mention modernization of the kitchens and baths.
The Wave House was listed on Airbnb at around $465 a night in October 2021, when The Spaces described it as a three-bedroom house. The outlet described the home's wooded setting and interior features. The property sits in West Amwell near Lambertville, a roughly 22-square-mile township in Hunterdon County where the average lot size runs about five acres and the median home sale price stood at $922,500 as of July 2026, per NJ.com.
