The house that inspired “The Amityville Horror” book, films and a Long Island cultural phenomenon has come back on the market.

Owner Caroline D’Antonio has listed the five-bedroom, 3-1/2-bathroom 1927 Dutch Colonial at 108 Ocean Ave. for $850,000 with Jerry O’Neill of Coldwell Banker Harbor Light.

D’Antonio and her husband, David, who died last year, purchased the house in 2010 for $950,000. The property had been placed on the market earlier that year for $1.15 million.

The 50-by-237-foot property is on a canal and comes with a boathouse and boat slip, which figured prominently in the book and 1979 film and still draw curiosity seekers, especially around Halloween.

In 1974, a then-23-year-old Ronald DeFeo Jr. killed his parents, two younger brothers and two younger sisters at the house, shooting them with a rifle as they slept. (DeFeo is now serving 25 years to life at the Green Haven Correctional Facility in upstate Dutchess County.) The Lutz family moved into the house a year later. They left the house in 1976, later providing audiotapes to author Jay Anson describing paranormal experiences that became the basis for the book “The Amityville Horror: A True Story.”

The D’Antonios “enjoyed the house,” O’Neill said, although their time there was not necessarily quiet. “Tourists came and took pictures on the sidewalk, selfies, that kind of stuff,” he said.

The couple made improvements such as redoing the kitchen, replacing wallpaper with fresh paint and finishing the basement, said O’Neill, whose brother once owned the house. “It is priced to sell,” he said. “It’s a good value, a lot of features for that kind of money.”

The house is “on a high elevation” and was therefore “high and dry” during superstorm Sandy, he added.

David D’Antonio, a teacher, died in 2015, according to obituaries. Caroline D’Antonio has since purchased a condominium and moved out, said O’Neill. “Obviously she doesn’t need a house that size,” he said.

“I don’t know what to expect,” O’Neill said of placing the house Friday on the open market. “The one thing we are doing is we are controlling the showing activity to the extent that we can only have serious, qualified buyers make appointments.”

Before being able to tour the house, real estate agents will be required to fill out an application and provide a potential buyer’s bank prequalification and “proof of funds.”

There is a two-car garage on the property, and the total annual property taxes are $27,927, according to the Multiple Listing Service of Long Island website.