The five-story sunlit home at 49 Monument Ave., built in 1855 for John B. Wilson, a respected contractor, and his wife, Mary, is extra wide, flourishing fabulous features fashioned with the highest quality in design, materials and craftsmanship.

Although Monument Avenue in Charlestown depicts some of the finest and most impressive examples of 19th century townhomes, one of the dwellings in this tree-lined, gas-lit village is in a category by itself. Featured on the Charlestown’s Preservation Society House Tour, this historical home has a fascinating story.

According to Ellen Kitzis, President of the Charlestown Preservation Society, John and Charles Wilson were brothers. They purchased three parcels and split them equally, affording an over-sized lot for both of them.

The five-story sunlit home at 49 Monument Ave., built in 1855 for John B. Wilson, a respected contractor, and his wife, Mary, is extra wide, flourishing fabulous features fashioned with the highest quality in design, materials and craftsmanship.

This historic brownstone has five bedrooms and three-and-a-half bathrooms. It boasts 3,827 square feet of a stunning blend of updates and architectural detail, preserving its old-world charm. It is listed by Chris Remmes of Coldwell Banker-The Hammond Group for $2,275,000.

The remarkable interior qualities begin in the classic marble anterior vestibule with an elegant crystal chandelier. The front door has etched glass sidelights and transom with decorative door casings.

Soaring ceilings with triple-crown moldings that showcase ceiling medallions; almost floor-to-ceiling two-over-two windows accenting foot-high detailed bump boards in the huge living and dining rooms plus several ornate fireplaces are some additional facets. Stunning wood flooring that is a mix of hand-sanded oak and maple boards are found throughout the entire home.

At first glance, the main floor looks traditional with distinct living, dining and sitting rooms. On the other hand, unique architectural elements create a free-flowing “open” contemporary concept.

An unusually wide archway (suitably detailed with period molding/paneling) between the living and dining rooms make this an immense front-to-back space. Flexibility is enhanced by hip walls between the dining and sitting rooms. The result is an easy-living circular traffic pattern as two of these rooms have direct access to the double foyer.

Two large identical fireplaces with beautiful wood-scrolled surround and classic marble mantles take center stage in the living and dining rooms. Custom built-in cabinets with open and closed shelving sit on either side of the living room’s fireplace, distinguishing the hearths’ visages.

Both the dining and sitting rooms have “views” overlooking the patio that is directly off the eat-in kitchen. Here, butcher block countertops, bead board wainscoting, open shelving, a subway tile backsplash and several glass-front cabinets are sophisticated “country” accents complemented by stainless steel appliances. The vaulted ceiling with a ceiling fan and three skylights illuminates the room.

A French door leads to the private courtyard. Fully fenced and prettily landscaped, this large, bluestone paver patio has the feel of a suburban yard. With its raised garden bed, built-in grill and ample space for a table, chairs, lounge, etc., this outdoor space is an urban oasis.

A powder room with a classic black-and-white tile floor, bead board wainscoting and a pedestal sink is also on this level.

The four-story open staircase with turned spindles, a chair rail and curved bump boards has two coffin turns on the way to the second floor.

The two spacious bedrooms feature pristine oak flooring - a beautiful backdrop to additional classic features such as the fireplaces with decorative soapstone mantels, floor-to-ceiling windows and double crown molding. One room has two sets of double closets along one wall, while the other room has one closet.

The mahogany-paneled office/library has a bow window that offers clear and memorable view down Monument Avenue. The window seat with storage is a bonus.

The bathroom is show-stopping. While the granite-topped black oval sink makes an attractive statement, the claw-foot soaking tub takes center stage. These two show pieces are embraced by bead board wainscoting, a mini period radiator and a black-and-white tile floor repeated in the step-in shower that is fully tiled from ceiling to floor.

Three bedrooms on the third floor are filled with interesting features. One, for example, has a striking exposed brick wall accented with double crown molding and detailed bump boards. A cedar closet is a perk.

Big closets are standard in the remaining bedrooms. One of these rooms could be used as a second office/study or a hobby room.

The spacious bathroom has a combination tub/shower and a pedestal sink. Two large windows fill the room with an abundance of natural light.

A leaded glass roof window/skylight at the top of the stairwell to the fourth floor is the first clue that this level is phenomenal. This great room (in every sense of the word) is of exceptional size and scale. Also running front-to-back, this room has a cathedral ceiling with exposed beams and brick walls.

House lore has it that back in the day (mid-20th century) when the property was owned by William J. Galvin, Sr., a former Boston City Councilor and superintendent of Faneuil Hall and Quincy Market, his daughters used the space to practice their ballroom dance moves. They “changed” outfits in the adjacent room. Kitzis said the great top-floor room was also used as a roller skating rink.

Another lodge legend is that the fireplace with an elegant mantel in this room was transplanted from the Boston Athenaeum, one of the oldest independent libraries in the US, following a renovation a few decades ago.

A ladder leads to the roof and while building a roof deck is an option, so is enlarging windows or installing French doors. The view from this level is simply sensational.

Not to be outdone, the lower level in this home, which is the footprint of the house, has its own unique elements, one of which is a private entrance. In addition to an enormous amount of storage that includes a wall of closets plus one under the stairs, this finished space has a brick-front fireplace with a raised hearth.

The gigantic open space easily accommodates a conversational seating section plus a dining area. The compact galley kitchen has all the prerequisite appliances as well as prep space.

As this level also has a full bathroom that features a combination tub/shower with a tile surround, this space could be effective as guest quarters or au pair space. Transforming it into a home theater or personal gym is another option.

Charlestown is a great place to live. The location is excellent with plenty to see and lots to do. There are ample historical landmarks to explore, loads of shopping outlets to encounter and a variety of restaurants to experience.

Public transportation is close by, including water taxis, so owning a car is optional.

There will be an open house from noon to 1 p.m. on Sunday, June 17.