It was a classic case of the girl next dooror more accurately, the house next door. Before designer Molly Singer set foot on the three-acre homestead situated just outside Pittsburgh, Pennsylvania, she was a frequent visitor to (and designer for) the house located next to it. When it came time for her own family to find a new home, she initially overlooked the often driven-past house. I think we went through five or six houses before considering this one, says Molly. Despite the stunning property and bucolic setting, the house was somewhat of a wallflower. It had simple bones and was unassuming. But, faced with a deadline and dwindling options, Molly had a change of heart. The more she explored the house and its surrounding woods, the more it resonated with her. It was just so tranquil and beautiful, she says. And totally workable.Stacy Zarin GoldbergDashing blue wainscoting (painted Hague Blue by Farrow & Ball) in the entryway sets the tone for the colorful Colonial-inspired farmhouse. Once the house was officially theirs, Molly got to work transforming the formal-minded space into a colorful home fit for her bustling family of four and their four furry friends. Colonial charm became her buzzword. The previous owners decorated it in what she describes as Colonial Williamsburg style, which appealed to her, but she had something a little more exciting and fresher in mind. Cue the classic movie makeover sequence: paint colors went bolder, patterns were refreshed, and suddenly, the house next door became the most eye-catching home on the street. I took everything up a notch, says Molly. Thats the benefit of designing your own home; you can go a little wild.Take a tour below to see how Molly brought the historic home to new design heights. A Fresh-Yet-Formal Sitting AreaStacy Zarin GoldbergContrast trim and millwork complements the bright blue ottoman in the formal sitting area.Stacy Zarin GoldbergA green velvet club chair and matching ottoman provide a cozy, curl-up corner. A rich, colonial-inspired palette of ochre yellows, forest greens, and bright blues freshens up this formal sitting area. Treating this room, which Molly admittedly spends very little time in (My kids make fun of me because I decorated these rooms and never go in them.), as a showcase space made using bold colors an easy choice. Simple upholstery with contrasting piping, a floral upholstered occasional chair, and tonal chinoiserie pillows balance the palette. On the lower-than-desired ceilings, steely blue fretwork draws the eye upward and adds visual interest without making the room feel cramped.Get the Look:Wallpaper: Abaca Harvest by Phillip JeffriesTrim Paint Color: Sloe Blue by Farrow & BallFor More Color Inspiration:A Breezy Cottage KitchenStacy Zarin GoldbergShaker-style cabinetry, complete with multiple sets of furniture-style foot brackets and painted a soft blue, grounds the airy kitchen.Full of traditional touches and designer details, the breezy blue kitchen epitomizes timeless charm. Shaker-style cabinetry, complete with multiple sets of furniture-style foot brackets, grounds the airy 12-foot tall kitchen, while creamy tongue-and-groove paneling offers contrast to the red oak beams, corbels, and flooring, all stained a custom blend.Get the Look:Cabinetry Paint Color: Skywalker by BackdropPaneling Paint Color: Pointing by Farrow & BallStain Color: 50/50 Cocoa and Natural by BonaRELATED: 30+ Beautiful Blue Kitchen Cabinet Ideas to Elevate Your HomeA Historically Inspired Dining SpaceStacy Zarin GoldbergThe same moody blue from the entry was carried into the butlers pantry. A teal gingham wallpaper was added to the ceiling for an extra pop of pattern.Stacy Zarin GoldbergMolly chose themural wallpaper to lend an "outside in" feel to the dining room.The glossy blue butlers pantry, which serves as a major connection point between the homes original footprint and a new addition, holds most of the familys entertaining pieces, including a collection of antique teacups that once belonged to Mollys mother. Just off this space, the formal dining room is filled with pattern, thanks to an enveloping Chinoiserie mural wallpaper. When preparing to install the mural, Molly and her team uncovered a wallpaper hidden under layers of paint and drywall that was eerily similar to the one shed chosen to put up. It was definitely a meant-to-be moment, says Molly. The dining rooms blush tones offer a ladylike approach to the subtle red thread running throughout the house, while the mahogany dining table and sideboard, both vintage from storied American furniture maker Baker, ground the space.Get the Look:Wallpaper: Les Oiseaux by SchumacherBuilt-In and Trim Paint Color: Hague Blue by Farrow & BallRELATED: Brown Wood Furniture is Trending Again. Heres What to Know.The Pattern-Forward PrimaryStacy Zarin GoldbergHappily beige curtains and a woven chandelier create calming moments in the pattern-filled bedroom.Stacy Zarin GoldbergMoody black limestone tile, with subtle gray veining,was chosen to ground the neighboring primary bathroom. "Every room needs a bit of black," says Molly. Though Molly knew she wanted to do something bold in the bedroom, even she wasnt immune to second-guessing her design decisions. I thought, Is this wallpaper not going to be calming? Is this going to stress me out at the end of the day? she says. She knew there was only one path forward and it meant embracing the advice she'd been giving to clients for years: If youre going to do something like this, you have to go all-in. The resulting space doubles down on pattern (see: gingham lampshades and leopard-printed rug) and is equal parts relaxing and refined.In the adjoining primary bathroom, layers of texture were employed to offset the bedrooms pattern overload. A simple, earthy grasscloth wallpaper balances the moody black limestone tile, while a classic slipper tub with a freestanding telephone faucet adds traditional elegance.Get the Look:Bedroom Wallpaper: Indian Arbre by SchBedroom Window Trim Paint Color: Sloe Blue by Farrow & BallBathroom Wallpaper: Gramercy Weave by Phillip JeffriesRELATED: More Beautiful Bedroom Ideas for Designing the Dreamiest Room EverAn Expansive Laundry RoomStacy Zarin GoldbergThe floral wallpaper lends the hardworking space a more romantic feel. When Molly told her friends and contractors that she was going to turn the old family room into a large laundry-meets-mudroom, there was one unified reaction: Everyone said I was nuts. That didnt stop her. It was the best decision I made, she says. The oversize 150-year-old French farm table, which Molly purchased on a whim from online antiques marketplace Chairish to fill the space, does double duty as a clothes-folding station and a family dumping ground. Painted a woodsy green, the cabinetry built along the back wall houses a full-size farmhouse sink and a dishwasher, ensuring this space earns its title as the hardest-working room in the house.Get the Look:Wallpaper: McCall by Ferrick MasonTrim and Cabinetry Paint Color: Green Smoke by Farrow & BallRELATED: 30 Fun and Functional Laundry Room Decorating IdeasBackyard BeautyStacy Zarin GoldbergVarying shades of green keep this space feeling fresh throughout the seasons.Stacy Zarin GoldbergThe 100-plus-year-old well house that sits at the bottom of Mollys property was once the areas main water source.Located just off the main living area downstairs, the screened-in back porch is the perfect spot for Molly, her family of four, and their four pets to gather when the weather is pleasant. Shades of green, one of Mollys favorite colors, were chosen to keep the space cheery, even throughout the long Pennsylvania winters. Elsewhere on the property, a charmingly historic well house, surrounded by trees that offer a picturesque dapple of sunlight throughout the day, serves as a reminder of why Molly and her family fell in love with this happily historic homestead in the first place.Get the Look:Ceiling Paint Color: Haven by Sherwin-WilliamsWall Paint Color: Pointing by Farrow & BallTable: Garden Table by Mainly BasketsChaise: Beach House Chaise by Mainly BasketsTour These Other Colorful Homes:Anna LoganSenior Homes & Style EditorAnna Logan is the Senior Homes & Style Editor at Country Living, where she covers design and decorating trends, home features, and gift guides. She also produces home features and styles content for the print magazine. When she isnt working, can often be found digging around antique shops for the perfect find. Follow her adventures on Instagram!