Balance proportions in a large kitchen with a heavy wood island.

To fill this two-story Tudor-inspired addition, Toronto designer Theresa Casey custom designed both an intricately carved and oversized wood chest to house the fridges, as well as a wood island. Wood cabinetry and exposed beams were stained to create contrast against the cream walls. A large Tudor-style pendant fixture also works with the scale of the room and adds a touch a drama.

See more of Theresa Casey’s projects in our photo gallery.

Splurge on grand materials in a small space.

In her own kitchen, Toronto designer Theresa Casey clad the walls in a gorgeous white marble. Framing the narrow window in the same tone as the cabinetry makes it pop against the marble. Rather than floating shelves, Casey built storage into the wall to save space.

See more of Casey’s projects in our photo gallery.

Add interest with a monochromatic console display.

This contemporary console is topped with a few simple accessories for warmth and personality: a mod white lamp, fan of coral, and stacked design books with white spines.

Divide a large room into two seating areas.

In this decadent living room, Casey created one lounging area around the fireplace, and another to the left. A very Mad Men-style bar adds a glam element to the room, along with deep red drapery and oversized artwork.

Keep clutter behind cupboards in a home office.

Toronto designer Theresa Casey stored most of the office supplies behind freshly painted custom cupboards with moulding. With a wall of bookcases and storage, it was easy to leave the modern desk free of unnecessary clutter, apart from a laptop and vase of flowers. Now, the homeowner is free to focus without distraction.

See more of Theresa Casey’s projects in our photo gallery.

Maximize floor space with a small desk in front of existing bookshelves.

To channel the quiet serenity of a library, Toronto designer Theresa Casey incorporated a small desk into this wall of custom millwork. The built-in desk is framed by tall cabinets with open and closed storage. Two sconces provide extra task lighting, and the books above are easily accessible while working.

See more of Theresa Casey’s projects in our photo gallery.

Create a relaxing oasis with a sofa.

In this spacious bathroom, an inviting couch adds a touch of luxury. A deep tub overlooking the trees and heavy roman blinds also add to the spa feel of the space.

Layer texture and pattern for a luxe look.

In designer Theresa Casey’s home, the decor-inspired dining room’s navy velvet banquette was inspired by one in a Parisian café and is perfect for hosting dinner parties or lounging with the Sunday paper. Built-ins provide ample storage and decorative brass-grilled doors hide radiators and unsightly wires and cables.

See more of Theresa Casey’s projects in our photo gallery.

Add romance with antiques and bold colours.

In designer Theresa Casey’s bedroom, textured velvet wallpaper, a butterscotch silk headboard, fringed curtains and a Chinese silk brocade duvet transform the space into an embracing haven. The bowed legs of the mirror-topped bedside table provide visual breathing space.

See more of Theresa Casey’s projects in our photo gallery.

Exotic details and a shapely velvet headboard shine in this space.

While many of us choose beige or off-white walls, interior designer Theresa Casey embraces the rainbow: “Colour is the easiest way to transform your space — you can have a wall come forward or recede. Sometimes a small room doesn’t have a lot of light, and you add a beautiful eggplant purple and voilà, your space is cosy and warm.”

Get more design and decorating ideas in our Designer Bedrooms photo gallery, or see our Theresa Casey photo gallery.

Install an eye-catching wallpaper on just one wall.

To create a sense of serenity, designer Theresa Casey used softer colours throughout the second floor and combined subtle Asian accents with flower motifs for a romantic yet worldly feel. She divided the huge principal bedroom into two sections with a character-building panelled archway. A delicate, bamboo-look brass canopy bed from South Hill Home adds height.

Find more inspiration in our photo galleries of Rooms With Warm Metal Accents and Budget Bedroom Decorating Tips.

A graphic art wall and rug liven up this work space.

A red accent wall adds the appearance of depth to this room and feels bold and cheerful in contrast to the basement’s simple black and white scheme. The gallery wall features original drawings from designer Theresa Casey and her husband, Robert Gray.

See more Red Rooms, interiors by Theresa Casey and learn more Budget Basement Decorating Tips.

Dress up basic basement cabinets with vintage drawer pulls.

Designer Theresa Casey renovated her 600-square-foot basement to include an office, guest bedroom and luxe laundry area. She saved on affordable white lacquered cabinetry but added vintage handles, a marble countertop, a gallery wall and a vintage ladder to make the utilitarian space seem special.

See more interiors by Theresa Casey, plus get more Budget Basement Decorating Tips.

Pretty wall panelling conceals additional storage.

The bold blue of the impeccable millwork in the study amplifies the impact of the intricate floor tiles in the entryway.

For more design and decorating ideas, browse our Amazing Libraries photo gallery.

Jewel tones add a dramatic feel to this study.

Red wingback chairs that interior designer Theresa Casey picked up in New York offer a complementary contrast to the millwork.

To see more rooms with jewel tones, head to this photo gallery. Plus, check out our galleries of Amazing Libraries and 28 Rooms With Painted-Out Trim.

Colours and patterns happily commingle in a richly layered library.

Vibrant linen curtains play off cerulean blue millwork, as does a red wing chair that interior designer Theresa Casey picked up in New York.

For more design and decorating ideas, browse our Great Drapes & Blinds photo gallery.

Custom shelving accommodates a TV perfectly.

Cosiness emanates from this Theresa Casey-designed space. Wide crown moulding, worn leather sofas and a detailed floor pattern add a luxurious feel to an often-used family room.

For more design and decorating ideas, browse our Amazing Libraries photo gallery.

Place a settee in front of your bed for a cosy place to sit.

A coffee table that might otherwise appear in a living room works well in this bedroom. Tidy stacks of books look like art and keep treasured titles on hand.

See more gorgeous bedrooms in our photo gallery. Plus, browse more interiors by Theresa Casey.

Elegant details shine in this sweet bathroom.

Toronto designer Theresa Casey pulled out all the stops in this pretty powder room, going with gold-toned hardware, a rich marble countertop and sculptural sink. Petite spaces like this are great opportunities to try out more extravagant tilework, like the glazed ceramic pattern seen here, as you only need to cover a few square feet. 

For more ideas, check out our gallery of 20 Small Bathrooms.