Looking for a townhouse in Greenpoint, Brooklyn? How about two? Listed for $2,800,000, 112 Oak St. is actually two separate buildings, a two-family with a single-family tucked away at the back of a 25-foot lot in the Greenpoint Historic District. (Buyers take note: Each dwelling has only one bathroom.)

The smaller single-family appears to be a "back house." At one time, in an effort to create more living space, NYC property owners would build residential buildings directly behind their street front buildings, or turn workshops and other outbuildings into habitable spaces. (Buyers should be sure to ask if the back house has an updated C of O.)

The street-facing two-family is a three-story house with lots of prewar features like high ceilings, wood floors, crown moldings, pocket doors, and a working wood-burning fireplace.

The parlor floor has an open plan living room/dining room.

The kitchen is renovated and overlooks the patio area below.

There is also a study/library room on this floor.

The top floor has three bedrooms; a skylight provides this floor with additional natural light.

A large full bath is on the second floor.

There is a shared courtyard between the two structures.

The lower level of the building is a one-bedroom rental with a separate entrance.

The bedroom is a good size.

At the back of a lot is the two-story building, which has a cellar. (Read: lots of storage.) It has an eat-in kitchen.

The upper floor has two bedrooms.

The full bath is large and clad in white tile.

And a private backyard.

This floor plan helps make sense of the layout.

The townhouses are a few blocks from the G train the Greenpoint Avenue; it's more of a hike to the L, but an East River Ferry stop is also nearby. All the conveniences of Greenpoint are close as well: trendy eating and drinking spots, McGlorick and McCarren parks, and the Greenpoint YMCA.