Tunnel Farm is a stunning, jewel-box estate located in the heart of Montgomery County. Beautifully situated on 24 tranquil acres and surrounded by the permanently preserved 375+ Natural Lands Trust Gwynedd Wildlife Preserve. Enjoy state-of-the-art living with multiple residences and incredible recreational amenities in a peaceful country setting, yet close in proximity to everyday essentials and a short drive to center city! This quiet and serene property provides lush grounds, a beautiful pond, arboretum, organic vegetable garden, orchard, walking trails, world-class equestrian facilities and pickleball courts. In addition to the breathtaking main residence, the property also offers 2 additional residences, a bank barn, incredible indoor arena and more! Enjoy the resort-lifestyle without leaving home! The circa 1742 main residence is a gorgeous manor home which has recently undergone an extensive 3-year renovation and expansion by architects Archer & Buchanan and Casella Builders. The home has been reimagined by a designer with discerning taste and is the perfect blend of modern-day amenities and old-world charm. Rich in period details, such as exposed stone walls, barn-beamed ceilings, restored original fireplaces, antique mantel and stone floors. The stunning kitchen, by Blue Bell Kitchens, features gorgeous granite countertops and backsplashes, antique exposed beams, hardwood floors, top-of-the-line appliances and a retractable appliance bay that disappears into the countertop. The open floor plan flows into a cheerful breakfast room and custom bar area with zinc countertops. Completing this space is a cozy living room with a fireplace and peaceful pond views. Enjoy the integration of indoor and outdoor spaces with multiple outdoor seating areas with beautiful stone patios and covered porches, overlooking a serene pond and small walking bridge which leads to the pickleball courts. Also on the main level, a formal dining room, sleek home office with exquisite wood paneling and fireplace, a den with original stone fireplace, mudroom and powder room. Take the lovely sweeping staircase to the upper level to a magnificent main bedroom suite with exposed beams, private outdoor covered deck with pond views and walk-in closets. The sumptuous bathroom boasts a jetted slipper tub, mosaic marble floors, granite vanity with vessel sinks, wood-paneled alcove, Juliska lighting fixtures, granite steam shower, Sunlighten Infrared sauna, Toto sensor toilet and Smart Glass technology with privacy 'fog' at the click of a button. There are 3 additional lovely ensuite bedrooms, each with their own character and charm and gorgeous bathrooms. The 4th bedroom suite is complete with a large sitting room and private entrance, via a back staircase, perfect in-law or au pair suite! Finished lower level w/ fitness area and bathroom. All 3 levels can be accessed by stairs or elevator. 3-car heated attached garage and 4th garage bay located in the bank barn. The exterior of the home is surrounded by a variety of specimen trees and pristine flower beds which are archived in photographs in the Smithsonian. The horse facilities are an equestrian’s dream! Renovated 200-year-old bank barn in impeccable condition w/ 6 matted stalls, air conditioned feed room, bathroom & social room. Automatic waterers in stalls & fields. Extraordinary 200 x 86 custom-built indoor riding arena which features 24 electrically operated, oversized glass doors, Attwood Equestrian dust-free footing, 4’ angled rider guard w/ mirrors, 2 wash stalls w/ hot/cold water, temperature-controlled tack/viewing room w/ kitchenette & bathroom. Two 5-stall shed rows for overflow horses with 2 tack rooms. All fields have access to 3 run-in sheds. Caretaker home attached to the barn 3 BR, 1 1/2 baths and guest house w/ 2 BR & 2 full baths. Whether you're looking for a family compound, country / nature retreat, resort lifestyle or state-of-the-art equestrian facilities, this property has it all!