Thirteen years ago, this house on Quincy Street in the heart of Chevy Chase looked just like the property next door — a 1950s classic colonial home. Today, it’s a contemporary version of its former self with a steel front porch with a copper addition and tall windows facing the street.

Washington-based architect Robert Gurney, who is responsible for the renovations, expanded the house toward the back yard instead, mostly maintaining its original front exterior so it wouldn’t overwhelm neighboring houses.

“We had already established ourselves as part of the neighborhood,” owner and builder Ted Peterson said. “The front porch and the elements we incorporated into the house are sympathetic to the traditional neighborhood — the copper addition is a modern element that makes the house stand out, as an unusual characteristic within the neighborhood.”

Limestone, black granite and travertine make up the interior, with dark oak-stained flooring. “It has this repetitive serenity as opposed to having many different types of modern elements,” Peterson said.

Peterson worked closely with Gurney to ensure the house’s interior had ample open space and abundant light. Instead of a wall, a vertical mahogany screen separates the dining room from the stairs on the first floor.

“Though there are clearly defined rooms in the house, there’s a sense of communication and flow that works well in a contemporary house,” said Michael Rankin, listing agent of TTR Sotheby’s. “It still has a sense of structure and identity, and still allows the rooms to communicate with each other.”

The house’s first floor has a dining room and kitchen with quarter-sawn white oak cabinets, leading to a family room with a gas fireplace and opening into a patio and back yard. The four-bedroom house spans four levels, with five full bathrooms and one half bathroom.

On the second floor, the master bedroom’s roof is pitched on top of about 18 inches of wall glass wrapping around the room, letting in natural light. As per a request from Peterson, the master suite leads to a sitting area.

A stacked-stone garden structure sits behind the house, across the yard from the house’s back patio. Gurney has subsequently incorporated this stacked-stone into other properties, Peterson noted.

The house is listed for $2.49 million, with an open house from 2 to 4 p.m. on Sunday.