One moment can make a room, she says.

She also used it on the exterior but at 50 percent saturation.

This was my first time making decisions on my own place, she says.

cottage style family room with brick fireplace and painted blue mantel, vaulted ceiling, upholstered chairs and sofa, rattan armchairs, and floral drapery

Credit:Nathan Schroder

White would have been safe, but to me blue is a neutral color.

I thought,you’ve got the option to never have too much blue.

Mary Kate worked with an architect to add symmetrical dormers to the front of the cottage.

Mary Kate, Ben, and George Carl standing on steps to front of house

Credit:Nathan Schroder

The dormers make the living area feel light and airy.

Mary Kate Carl

“Painting the exterior blue was a real shock to my eye.

I needed time to sit with it and adjust to change.”

front of cottage style house with addition of dormers

Credit:Nathan Schroder

Mary Kate and Ben pitched the ceiling to give the cottage more volume.

She painted the living room mantel and the trim throughout the house in her favorite shade of blue.

The vertical lines of the painted paneling draw the eye up and give the kitchen a sense of spaciousness.

cottage style family room with brick fireplace and painted blue mantel, vaulted ceiling, upholstered chairs and sofa, rattan armchairs, and floral drapery

Credit:Nathan Schroder

Neutralsthe sealed butcher-block counter on the island and marble counterscomplement the scheme.

Plates make for quick, affordable wall art.

The couple repurposed the garage into an office.

cottage style kitchen with light blue cabinets, butcher block island, carrera marble countertops and paneled backsplash

Credit:Nathan Schroder

Cinder-block walls remain, but new checkered floor tile and woven shades elevate the space.

Mary Kate works remotely for Katie Davis Design, an interior design firm in Houston.

Shes found a client base in Texas Hill Country.

arched doorway to bedrooms with baby playing with toys in hallway

The wallpapered bathroom accommodates both guests and kids.

Mary Kate says she wanted to make it look like a fun powder room.

She chose affordable striped yardage for the window treatments.

design office from converted garage with black/white flooring and painted block walls

Custom fabrication makes cheap fabric look expensive, she says.

The freestanding pergola gives relief from the sun.

Loose pea gravel is easy to maintain and chokes out weeds.

powder room with marble counters, white cabinets and large print yellow wallpaper

Credit:Nathan Schroder

Friends and family gather to watch golf tournaments and college football games on the outdoor television.

cottage style bedroom with blue headboard, blue/white linens, round gold chandelier, and soft blue draperies

Credit:Nathan Schroder

outdoor living space of cottage style home with firepit, pergola over back patio and seating area

outdoor dining table with blue floral tablecloth and green metal chairs