Designed by Robert A.M. Stern in 2009, this 33-story, 102-unit high-rise combines the contemporary clean lines, window walls and city-block expanse of office towers with the classic brick, hardwood floors and high-end finishes of Boston townhouses.

It’s one thing to do business in a plush executive suite surrounded by sunny skies and soaring skyscrapers…and it’s another thing to actually live up there.

At The Clarendon at 400 Stuart St. in the Back Bay, both are possible.

Designed by Robert A.M. Stern in 2009, this 33-story, 102-unit high-rise combines the contemporary clean lines, window walls and city-block expanse of office towers with the classic brick, hardwood floors and high-end finishes of Boston townhouses.

This home-office hybrid is reflected in Residence 25A, where floor-to-ceiling city views, three exposures (north, east, south), three bed-and-bath suites, open-concept common areas, a flat-screen TV in almost every room, a central home office and a central location amid some of New England’s tallest office buildings create an executive-style live-work situation that’s tops in all departments.

Entering The Clarendon’s marble-floored, oak-paneled, brass-accented lobby staffed with 24-hour concierge, appointed with a fireplaced sitting area and hung with geometric abstract art, does feel like going to work and coming home at the same time - especially when you take a detour into the common library and business center.

In the dome-vaulted library, bookcases of art, architecture, style and travel tomes await your perusal by another marble fireplace. A carpet of classic-font alphabets and numerals adds intellectual stimulation.

The business center’s conference table, stuffed chairs, coffee, tea, Wi-Fi station and Samsung screen are ready for your professional powwows by advance reservation with the management.

The maple-paneled elevator transports you with executive elegance to the hotel-style carpeted hall that introduces Residence 25, where the direct entry to the home office across from the new herringbone oak-floored hall lets you come home and get right down to business.

The glass double slider, Liberty Mutual tower view and gray tweed fabric wall treatment, embedded with surround-sound speakers, suit the office well for that purpose.

For lunch-break convenience, it connects right to the open kitchen where granite counters and backsplashes, lacquered wood cabinetry with designer chrome hardware and paneled-in Sub-Zero refrigerator and freezer, stainless steel appliances and a Sub-Zero under-counter wine cooler are ready for all occasions. An attached TV screen between the five-burner gas cooktop and the Miele double wall oven lets you watch cooking shows as you prep.

A raised bar with glass pendant-drop lighting segues the kitchen into the open, soaring living-dining area. Here, ceiling speakers carry the tune throughout the space, and a wraparound window-wall panorama with up-close views of the Liberty Mutual, 500 Boylston and John Hancock towers puts you in the heart, but above the fray, of the Back Bay. It is backgrounded by the Boston Common, the State House dome, the Charles River and Cambridge.

Elliptical globe-lights dangling from the ceiling define the dining area.

The present owner converted a fourth bedroom into an extension of the living space, appointing it with a fireplace-style soundbar with speakers, granite mantel and Sony overmantel TV. The Crestron integrated smart-house system lets you remote-control the audio, video, lighting and automatic shades virtually anywhere in the unit. A walk-in closet and one of four full marble/onyx baths is off the extension.

The owner also renovated the bedroom beside the office as a roomy walk-in closet with shoe shelves between the windows, but it can resume its original use easily. The adjacent shower bath is handy for bathing-and-dressing convenience.

The closeted entry hall leads right into the master suite and right-angles to the third bedroom with en suite bath via a washer/dryer closet.

The South End’s low-rise residential scale gives both bedrooms radiant southern exposure and breathtaking blue-sky vistas extending to the Blue Hills and the JFK Library. This appropriately makes bedtime feel more like home than office, while the eastern sunrise office-tower view from the master bedroom says it’s time to get up and go to work.

The master suite also boasts hanging bedside lamp sconces and two walk-in closets. The five-piece master bath dresses the soaking tub with hand-held shower head, the standup shower with hand-held and rain shower heads, the twin-sink vanity, and the floor in an Italianate contrast of white marble and honey onyx.

The unit comes with fob-key elevator access to common amenities on the sixth floor. The children’s playroom is equipped with computers and a wave-topped case of books and playthings.

The Equinox fitness center is being renovated, but will reopen later this year. The Clarendon Club Room boasts a caterer’s kitchen, a marble fireplace, a Samsung TV and a full dining facility - a sumptuous scene for wedding receptions, bar/bat mitzvahs, corporate luncheons and other special occasions.

The weathered-wood garden terrace has a wide variety of outdoor furniture for sitting and lounging.

For more public interaction, the Post 390 tavern/restaurant, renowned for the handcrafted cocktails and cosmopolitan cuisine of Executive Chef Nick Deutmeyer, is right beside the main entrance. Two-car valet parking is right around the corner, and a post office is conveniently located in the building as well.

Offered at $5,799,000, Residence 25A at The Clarendon epitomizes upscale living in a downtown setting, unifying the corporate and domestic realms seamlessly. For a private showing, contact Susan Cohen of Campion and Company at 617-694-1169 or