Finding brand-new construction in the South End is always exciting. Two new homes in one of Boston’s most picturesque neighborhoods overlooking a tree-lined historic square with a fountain were both recently sold.

Ralph Aucella of Keliher Real Estate had listed two condominiums at 25 Concord Square, a Mainsail Management Development. Aucella said he expected that the condos would sell quickly. He was right.

Unit 1 is a magnificent 2,436-square-foot parlor triplex with three bedrooms, three-and-a-half baths and two deeded parking spaces that sold on Jan. 31 for $3,050,000.

The other, Unit 2, is a 1,820-square-foot penthouse duplex with three bedrooms, two-and-a-half baths and one deeded parking space that was purchased for $2,350,000.

These homes are located in a totally renovated pet-friendly Victorian townhouse (originally build around 1860) with private outdoor spaces.

Large and bright, the stunning state-of-the-art kitchen in Unit 1 offers a plethora of storage in Leicht cabinets with a white lacquer finish enhanced by a backsplash with elongated white subway tiles. Flush-mounted under-cabinet lighting is a practical touch when doing prep work. Drawers with custom inserts for spices, knives, silverware, etc., are additional perks.

Stainless steel appliances – a five-burner gas Wolf range and a Thermador wall oven and microwave – are subtle, but glittering accents in this sophisticated room. A Sub-Zero refrigerator with two freezer drawers with integrated panels and a U-line wine fridge complete the sleek look.

Honed Carrara marble covers the huge center island with a waterfall edge, an oversized Julien stainless steel undercounter sink and Franke faucet. In addition to Leicht storage cabinets in a contrasting wood finish, the island also has a Bosch dishwasher with an integrated panel. The island seats at least four comfortably.

A roomy butler’s pantry with nearly floor-to-ceiling cupboard space and a wall full of the usual cabinetry can double as prep space when entertaining. The long countertop in this room also is marble, while these cabinets have a matte finish.

Oversized windows at each end of the kitchen are beautiful features on this level. JB True Curve two-over-two windows surrounded by richly detailed frames are installed in the front two-window bay area. Marvin windows are used in the back window wall, a floor-to-ceiling affair with a full glass pane Marvin door that opens to a massive deck with a wrought iron railing. Gleaming oak flooring throughout the residence is a cohesive element.

A flush-mounted Spark gas fireplace with a marble surround is one focal point in the spacious open flow living/dining area, which allows for flexible furniture arrangements. A flat-screen television could be added above the fireplace. Triple crown molding rims the room.

A half bath on this floor has a floating vanity with Duravit sink and a wall-mounted commode. The Grohe single-lever faucet and tilting mirror are contemporary accents.

A True Curve two-window bay and double crown molding are elegant touches in the spacious, street-level front bedroom. This room also has a double closet.

Elongated slate-colored subway tiles surround the Bain Ultra Air tub/shower combination in the adjacent bath. A Kohler sink and dual flush commode and a Hans Grohe faucet are used in this room.

Although the closet space – two extra-large, lighted, walk-ins – is a prominent attraction in the master suite at the back of the house, Mother Nature, a.k.a. the remarkable amount of natural light flooding the king-size sleeping area, is the highlight. The wall of three floor-to-ceiling full glass pane windows overlooks the fully fenced brick paver garden/patio.

The spacious marble en suite bath has two Kohler sinks set in a floating vanity, a Duravit wall-mounted commode and a huge step-in, fully tiled marble shower with a rain showerhead and a body spray. An open, five-shelf built-in cabinet works for practical and/or display purposes, and a one-over-one deep-set window provides ample natural light.

From the street, beneath the high stoop, is a private entrance with a small foyer with tile flooring. Surprisingly large, this area is excellent for bikes, boots and strollers.

A large front room with another two-window bay and a delightful wide display ledge on this level could serve multiple purposes as an office and/or a playroom or as guest quarters. This room has access to a Jack-and-Jill bath with a large, low-threshold shower with a marble surround and frameless glass door.

The family room, which also has access to bath, has a wonderful outdoor view of the patio/garden via a large wall of three floor-to-ceiling windows. A wide ledge can provide extra seating, too. Just add cushions and go. Another flush-mounted Sparks gas fireplace with a marble surround and mantel is indoor eye candy. A full glass pane door also opens to the patio.

Full-size Electrolux machines and a Kohler sink are in the spacious laundry room on this level.

Although the penthouse duplex in this building is a tad smaller at 1,829 square feet with three bedrooms and two-and-a-half baths, this home has the same luxurious finishes, top-of-the-line appliances, amenities and superb craftsmanship as its larger counterpart. For the most part, it’s the floor plan that reflects the few minor differences.

For example, the open living/dining room area has a large alcove overlooking Concord Square. Suitable as an open or closed library or den, this space could also be a dedicated dining room with the addition of French doors.

Several subtle elements give this residence a distinctive look too. A period- appropriate newel post, richly detailed with interesting architectural angles and curves, anchors the main staircase in the private-entry foyer. Coffin turns in all the stairwells are additional charming reminders of the building’s 19th century roots.

However, one outstanding feature is overhead and outside – the huge roof deck with a 360-degree view of the city.

These condos are located in a great neighborhood that included the award-winning South End restaurants and shops and art galleries; Titus Sparrow Park and O’Day Playground and the Prudential Center and Copley Place. It is easy access to MBTA Orange Line at Massachusetts Avenue station and Green Line, commuter rail and Amtrak at Back Bay station, Routes 93 and 90.