From the moment the front door opens, the great outdoors garner immediate attention. One end of the home overlooks the lushly landscaped patio/garden of Atelier 505 and the South End; the other has a sweeping view of Back Bay and beyond from the Fenway to the Millennium Tower.

That this luxurious residence, Suite 418 at 505 Tremont St. in the South End, is one of only eight duplexes in a 103-unit building would be enough to make it a rare find. However, this floor-through 1,720-square-foot home at Atelier 505 with two bedrooms, two and a half bathrooms, listed by Rich O’Connor of Gibson Sotheby’s International Realty for $2,495,000, has a few more features that put it into the “unique” category.

One is its fully enclosed 275-foot-square stone paver patio with teak fencing and another is the dramatic two-story entrance foyer. An exceptional element that really makes this urban dwelling a standout is the views.

From the moment the front door opens, the great outdoors garner immediate attention. One end of the home overlooks the lushly landscaped patio/garden of Atelier 505 and the South End; the other has a sweeping view of Back Bay and beyond from the Fenway to the Millennium Tower.

Whether you’re looking for tranquility or exhilaration the views match the windows of your soul’s desire.

In the two-story foyer, the open staircase with a metal and wood bannister and exotic Afzelia Doussie cherry hardwood flooring – found throughout the main level – are striking indoor features.

Kitchen placement – out of the main living area, yet fully open to it – enables the view to be “the” focal point. Well, at least initially.

Understated SieMatic cabinetry with clean lines (and under-cabinet lighting) on two walls – one set of uppers has frosted glass inserts – maintains the sophisticated aesthetic of this residence. A classic white subway tile backsplash contrasts the Absolute Black granite countertops - all complemented by stainless steel appliances that include a Gaggenau four-burner gas stove and glass wall oven, Miele dishwasher and Sub-Zero refrigerator with a freezer drawer. A gleaming Franke faucet and Kindred oversized, extra-deep stainless-steel sink are additional accents.

The black granite-topped center island (that seats two) delineates the kitchen from the adjacent dining area. While excellent work space, this also provides a substantial amount of storage (it has four drawers) and doubles as a server.

The living room has a wall of floor-to-ceiling windows (with stationery transoms) and a door to the patio.

In addition to a sizable powder room with a pedestal sink, Dornbracht faucet and marble floor, this level has a double closet in the foyer.

Designed to live like a free-standing home, this residence offers an abundance of personal privacy and numerous amenities – both practical and luxurious. Bedroom suites have their own wings (with a door) at each end of a longish corridor surrounding the open second-floor landing. The entire floor (and the stairs) is carpeted.

A large laundry room has a full-size stackable Whirlpool washer and dryer. This has ample space for storage, too. That’s in addition to a large, deep linen closet that is also in the hallway.

The 180-plus-degree view from the master suite’s sleeping chamber is incredible and ever-changing, visible from floor-to-ceiling windows – two open – that are the entire width of the unit. Nighttime views are, of course, spectacular.

Luxury is standard in the en suite bathroom. A 20-inch deep Kohler cast-iron soaking tub with a Botticino marble deck and surround is adjacent to a large stall shower in a frameless glass enclosure with Botticino marble walls and marble mosaic floor. All hardware (faucets, tub/shower fixtures and commode handles) are by Dornbracht. The marble-topped vanity has double china under-mount sinks.

The walk-in California closet is a how-to for storage. In addition to two five-drawer bureaus, this space has open shelving and specialized hanging areas.

A full window wall in the “front” bedroom suite showcases the South End street scene and the rooftops of iconic homes in this neighborhood. The light-filled sleeping chamber easily handles a king-size bed, and the closet is truly an indoor treat.

Exceptionally deep and extra-wide, this double closet is a walk-in affair that is fully customized to provide an enormous amount of storage.

The en suite bathroom has a Kohler cast iron tub/shower combination with a tiled surround.

In addition to luxurious space, the perks of this home go well beyond the front door. The long list of amenities with this residence in Atelier 505 includes a gracious lobby, full service doormen, 24-hour concierge service, an exclusive gym and private terraced library with a board room and caterer’s kitchen. 24-hour valet parking in a heated garage is accessible from any floor. One assigned and deeded parking spot (self-parking or valet) is also part of the deal.

Location is another perk of this home. The best of city living located in the heart of the vibrant South End, this home is adjacent to the Boston Center for the Arts and a short walk to Back Bay amenities, including the train and commuter rail as well as Copley Square with Copley Place.