The large building looks like it has multiple units, but there are only two: front and back. What’s on the market is a townhouse that’s a half-duplex.

When you look more closely at the building, you may realize it originally was a big barn that was thoroughly renovated in 1987. You probably have not seen another house, outside or inside, quite like this.

Its wooden clapboards are painted marine blue with white trim. There are three levels, with each unit having four dormer windows. And there is an above ground basement with an entrance and an attached garage that can accommodate three cars in a row. Walk through the beautiful off-street parking area, where each townhouse owner has four spaces, and past a side deck to the back of the house. This is a beautiful entryway. At the third floor is a double window with an arch. Below that is a sliding door with a railing. And on the main floor is an indented entryway with a front door with a narrow, centerpiece of glass. And there are four large additional windows.

The owner of this side takes care of the backyard and right side of the parking lot. The other owner takes care of the front yard and left side of the parking lot. Each owner pays $150 a month for the insurance of the building.

In case you didn’t see it on your way into the house, there is a two-level brick garden shaped like a heart and a beautiful a large yard. The house is 4,100 square feet. It is being marketed for $539,900 by Realtor Ro Caddick Kilduff of Costello Realty in Franklin.

Inside, there’s a ceramic-tiled foyer with a long walk-in closet and the back of a brick chimney.

To the right is the living or family room with four windows and a wood framed French door with two big glass panels and a transom window. A large built-in wood cabinet has granite on two different levels. There is a wood burning brick fireplace with a brick hearth and a cream wood mantel. At the far end, there is a raised portion of the floor with beautiful tiles that the owners used as a study. And the room has posts and beams.

On the left side of the foyer is a kitchen that opens to a dining room. The kitchen’s center island is covered with granite (cream and dark spots). A light fixture above the island has a black metal tripod shape and black metal strips around it. The counter has the same granite with a backsplash and stained wood cabinets with a few glass-covered doors.

The appliances are stainless steel. There is an Electrolux refrigerator with French doors with water and ice dispenser and a large freezer drawer on the bottom. There is a Frigidaire Gallery stove and oven (with a choice of convection) and a dishwasher. Above the stove is a Frigidaire microwave.

Below a pushup window there are two sinks, one bigger than the other, with a hidden hose in the faucet and a light above the sink. And there is a beautiful wood desk with black granite counter. At the edge of the kitchen is a glass French door with a transom window that opens onto the deck. And at the other end, there is a laundry room and a separate half bath with avocado walls and a pedestal sink.

The dining room has two more French doors with transom windows that also open onto the deck with a railing. There is a window at the far end surrounded by an elegant built-in cabinet with glass doors on either side. Four lights with a shade hang over the oak hardwood floor.

On the second and third floor, there are two large family rooms (the top one was used as a pool room). There’s a double window with an arch on a burgundy red wall on the top floor and a sliding door with a railing on the second floor.

The second floor has a master bedroom with a beautiful wood-burning brick fireplace with a wood mantel and a mirror. There is a long walk-in closet. The master bath has a skylight and window before a large jetted tub and a ceiling fan with lights.

There’s a bathroom on the other side with space for another washer and dryer and a glass shower in the corner. And the additional bedroom has two windows, a closet with two folding doors and a beam in the middle. There are another additional two bedrooms on the third floor.

Three zones of hot water baseboard are oil heated and there are three zones of central air conditioning. There is town water, a private septic system, which has passed Title 5, professional landscaping and a sprinkler system.

The house is about 3 miles from Interstate 495 and 1.5 miles to the commuter train station that runs into Boston.

There will be an open house on Saturday, May 19, from 12-2 p.m. For a private showing of the residence, call Realtor Ro Caddick Kilduff at (508) 561-4992.