1850 W Montgomery Ave, Villanova, PA 19085

Tucked behind gates on two private acres in Villanova, Au Vallon reveals itself slowly, like a secret estate in the French countryside. The 150-year-old carriage house, whose name translates to “In the Valley, ” has been expanded and reimagined with a sense of restraint and reverence. Its original stone walls and hand-hewn beams remain the anchor, while light-filled glass courtyards, sweeping terraces, and finely detailed additions create a home that feels both historic and current. The present owners have undertaken a thoughtful transformation, guided by the principle that every improvement should be worthy of the home’s origins. Their work—ranging from a newly built pool house with outdoor fireplace to a three-car garage fitted with sculptural hydraulic doors—was carried out with the same level of craftsmanship that defined the original construction. The result is an estate where modern comforts are seamlessly integrated into the existing architecture, and where new layers of design feel sympathetic rather than imposed. Inside, the rooms unfold with a natural rhythm. The formal living room, with its built-in shelving, elegant fireplace, and French windows opening to the gardens, sets a tone of understated grandeur. Beyond a hidden bookcase door lies the dining room, where a carved mantel and French doors connect the space to the slate terrace and Linden allée. The family room, crowned by vaulted beams and a stone fireplace, is paired with a country kitchen of true scale: granite countertops, dual Sub-Zeros, a Wolf range, two dishwashers, heated floors, and a walk-in pantry designed to support both intimate meals and large gatherings. The private quarters are no less compelling. Each of the five bedrooms is en suite; several include fireplaces, balconies, or terraces overlooking the landscape. The primary suite, a study in proportion and light, offers beamed ceilings, a Juliet balcony with views of the pool, and a bath conceived as a retreat—freestanding tub before the fire, glass-walled shower, cedar sauna, and dual vanities discreetly divided for privacy. A wood-paneled bedroom with Mercer-tiled bath speaks to the home’s history, while the lower level extends the living experience with a guest suite, second sauna, gym, and direct access to the pool. Outdoors, the gardens are composed with an eye toward both structure and romance. Specimen plantings dot the grounds, while clipped Linden trees form a shaded dining canopy reminiscent of Provence. Slate patios, balconies, and roof decks create multiple vantage points to experience the property. The pool, recently restored, is a focal point, animated by a sculptural fountain and complemented by the pool house. At Au Vallon, the past has not been preserved behind glass but rather allowed to evolve—its early 19th-century bones guiding a vision of 21st-century living. The estate stands as an architectural dialogue across centuries, offering privacy, beauty, and a sense of permanence that is increasingly rare.

Welcome to "Au Vallon”: The luxurious estate that has it all. Just perfect for relaxing, working & entertaining! The modern Open Living spaces are seamlessly woven together w/ the more Trad/Formal rooms, providing the best of both worlds. Drive away from it all, through the entrance gates, onto the 2 private acres to discover this beautifully renovated and expanded, 200 year old Carriage House. Enter the large, wooden, carriage doors to find the charming brick courtyard, surrounded by glass, allowing natural light to flood the interiors. The charm and beauty of the original structure has been restored and enhanced and is coupled with the substantial expansion of the main living areas, all to meet the requirements of today's most discerning buyers. All rooms have views of the incredible grounds. An allee of clipped Linden trees form the perfect cover for dining, reminiscent of Provincial countryside. The grounds feature specimen scattered throughout the property. Two large slate patios, multiple balconies & roof decks create more areas to enjoy the outdoors. The interior spaces are finished with exotic hardwoods, built-ins, 6 fireplaces, vaulted, beamed ceilings, large windows and antique doors. The 5 bedrooms, all of which have en suite baths & 3 bdrms feat. gas fireplaces & 4 bdrms have private balconies and/or decks. All 4 have view of the spectacular grounds. The formal front entrance brings you into the formal living room. Crown & picture mldgs, built in shelving, a beautiful fireplace, lrg french windows & drs make this room truly special, not to mention the stunning pool, visible from the front door to give you and your guests that “wow” factor. The bubbling fountain w/ sculpture provides the auditory ambiance to enhance the experience. The hidden opening to the dining room is behind the living room bookcase; always a surprise for guest. Once inside, you’ll find the gas fp w/ gorgeous carved mantle & French doors that lead to the slate patio and the allee for entertaining. The light-filled, wide open FAMILY ROOM feat. soaring ceilings, wood beams, gas fireplace, and french doors, all open to the informal dining area and newer Gourmet Country Kitchen w/ bar seating, granite countertops, 2 dishwashers, 2 SubZero's, a Wolf commercial range w/ pot filler and heated floors. The adj. , large, walk -in pantry, create sall the space needed to service the formal dining room & gourmet kitchen. Just beyond the Family Room is a sep. side entr. w/ heated floors, a PR, mudroom w/ built-ins, a full laundry room area & access to the over-sized 2 car garage. On the other side of the family room, is the music area, open to both the courtyard and the formal wet bar, & a formal powder room to serve both of the formal spaces. The 2nd wing of the 1st flr feat. a beautiful Library/Office w/ built-in bookcases on 2 full walls, large french windows, & beveled glass french drs leading to the 1st fl. wing w/ 2 large bedrooms, (often mistaken for the Main Bedroom) w/ gas frplcs, private balconies, story book windows, built- in shelves, & en suite seamless showers incl. 1 w/ soaking tub. The upper level feat. orig. wood paneled bedroom w/ renovated, en suite Mercer tile full bth. This bdrm feat. a lrg deck w/ spectacular views. The Main Bedroom feat. beamed clg. , fireplace, storybook windows, & Juliette balcony w/ stunning view of the POOL & the grounds. The Main Bathroom is light- filled & feat. custom windows & skylights. This open space sets the stage for the freestanding Birthday tub flanked by a gas fireplace & the oversized, seamless shower that divides the room for 2 separate toilets, bidets & vanities. This room also feat. a full-sized cedar sauna, a lrg walk-in clt area & access to private deck!The The Daylight LL feat. the 5th en suite bdrm & Private Entr. ; Perfect for visitors! This flr also feat. another sauna, laundry , exercise area & access to Pool & Patios. Agent related to Seller.