A woman with long wavy hair wearing a burgundy sleeveless top and beige pants, standing in a modern kitchen with wooden cabinetry and a wine rack, smiling at the camera.
Kitchen with light wooden cabinetry, white marble countertop, black tile backsplash, gold faucet, open shelves with dishes, and decorative plants.
Modern kitchen with white cabinets, navy blue lower cabinets, marble countertop, gold fixtures, and three pendant lights. Includes a kitchen island with beige bar stools, a large white bowl, and decorative items like a potted plant, candles, and a cu
A modern bathroom featuring a blue textured vanity with gold accents, a large mirror, pendant lights, a towel hanging on a gold bar, and walked patterned floor tiles.
Interior view of a staircase with wooden steps, black metal railing, white risers, a window with a beige curtain, and a decorative blue and white ceramic pot with a plant.
A bedroom corner with a beige upholstered bed, pillows, a modern nightstand with decor, and gold abstract wall art. A pendant light hangs above the nightstand, and the wall behind features a textured wallpaper with a leaf pattern.
Modern bathroom with marble shower, white vanity with gold hardware, black soap dispensers, and patterned floor tiles.
Living room with large window, green armchairs, a marble coffee table, potted plants, floral curtains, and dark-gray built-in cabinets.
A woman with blonde hair wearing a black and white polka dot dress and black open-toe heels stands in a bright room, reaching for decorative face-shaped vases on a black metal and glass shelving unit.
Dark gray built-in bookshelf and desk with two brown leather chairs, decorative items, books, and plants.
A bathroom vanity with a bright blue cabinet, two black faucets, two large mirrors with gold frames, and black wall-mounted lights. Decor includes a pink flower in a white vase, yellow towels, and small black dishes on a white countertop. The floor h
A modern bathroom with a black and white color scheme, featuring a wall mural of line art faces, a black vanity with gold handles, a white sink, a round mirror, a black vase, a lamp with three white globes, a pink hydrangea flower in a black vase, an
Modern bathroom with white walls, a round mirror, black and gold wall sconces, a grey vanity with a white countertop, a black faucet, a flower arrangement, soap dispenser, decorative object, folded white towels, and a shower with white marble tiles a
Modern living room with white built-in bookshelves, a fireplace with a stone wall, a large round wall clock, colorful patterned furniture, a blue and white rug, and decorative items.
A woman with wavy blonde hair and glasses looking into a round mirror, smiling, wearing a black and white checkered off-shoulder dress, standing in front of a wooden dresser with fashion books and decorative items.
Living room with tan leather armchairs, a black coffee table, and a green accent wall with artwork, natural light from large windows, and indoor plants.
Living room with blue velvet sofa, gray armchair, modern decor, abstract art, and natural light from arched windows.
Modern kitchen with white cabinets, black accents, gold hardware, a large island with a white countertop, and bar stools with gold legs and transparent seats. Hanging pendant lights over the island, floral decorations, and open shelves with decorativ
A woman with wavy, blonde hair wearing a black lace top, sitting on a beige sofa next to a white tray with jewelry, and a blurred floral arrangement in the foreground.
A green velvet armchair with a round white cushion on it, placed on a wooden floor next to a staircase with wooden steps and black metal railing, in a home interior.
Laundry room with white cabinets, black backsplash, washing machine, dryer, laundry containers, pink clothing hanging, and a window with pink roman shade.
Modern dining room with a dark wood table, six light grey upholstered chairs, black and white artwork on the wall, abstract black and white patterned wallpaper, a green wall art display, and a contemporary chandelier with white globe lights.
A living room with a beige sofa decorated with pillows and a throw blanket, a black round coffee table with vases and a bowl, and a wooden room divider with decorative vases and plants, with wall art and a closed black door in the background.

Designing bold, modern, luxurious spaces for you to love

Close-up of a marble coffee table with a white candle in a gold holder, a stack of four white coasters with a gold heart, and a large terracotta vase with a green leafy plant. Behind the table, a dark green sofa with a floral pillow and a dark cabinet with gold handles are visible.

Now Booking for Winter 2026 Projects.

Welcome to Christine Da Costa Interiors 

Is your home in need of a style refresh but your busy life keeps getting in the way? At Christine Da Costa Interiors we get it. Life’s demands—career, kids, and everything in between—can make it hard to find time to create a space that reflects your personality and lifestyle. If your home feels out of sync with who you are and you’re hesitant to host friends or family, we're here to help. 

Serving Oakville, Burlington, Mississauga, and GTA West, we specialize in modern, stylish interiors designed to make you feel proud and at home. With our fun, tailored approach, we’ll transform your space to fit your taste and lifestyle—so you can finally love every corner of your home. 

Let's create a space that feels like you.

BOOK A DISCOVERY CALL

  • Devonsley Main Level Testimonial

    Our experience with Christine Da Costa of Christine Da Costa Interiors & Renovation has been nothing short of outstanding. From the start of our main floor-kitchen renovation journey to the finish product, Christine has been a stellar and integral part of the overall success of our project. Christine is such a professional with high level skills in leadership, diplomacy, creative problem solving, communication and resourcefulness. We are in awe of her talents as a designer. We appreciated her keen eye for detail while considering the big picture. Her approach has always been direct, transparent and responsive, which we respected and valued. We loved working with Christine because she centred our preferences and budget while integrating her expertise as a designer. We would absolutely highly recommend Christine Da Costa!

  • Christine was a pleasure to work with for our home transformation.  We do not use that word lightly for what was created in our new living space.  Christine made everything possible from our initial meeting, explaining her extensive services, to the beautifully finished work of art.

    — Paul and Maureen

  • We used Christine’s ‘Designer for A Day Package’ to help us transform our dining room and convert our formal living room into a main floor office. We had a concept of what we wanted and with Christine’s consultation, together we developed a great plan for a fantastic space.

    — Chuck and Fiona

  • Christine is an exceptional designer. Her sense of flare, attention to detail and collaboration is fantastic. Christine helped me with my entire main floor design project - from choosing paint colours to helping with ceiling design and hardwood floor design and of course layout and furniture choices.

    — Sharene

  • I had the pleasure of working with Christine on my home office project. She provided me with several innovative designs and furniture options for the various options. Her customer service was great and I’d recommend her for your future design needs.

    — Mike

  • We contacted Christine immediately once we decided on renovating our powder room, kids bathroom and mudroom flooring. She already had a strong grasp on our style and risk tolerance (for finishes and decor) from our work together in 2017 when she helped with a major main floor renovation.

    — Navneet

  • I’ve worked with designers before where I felt they didn’t listen to what I liked, Christine seemed to understand what we liked just by talking with us. She came to present our basement renovation with the most amazing fabrics.

    — Kathleen

  • Christine has been wonderful to work with! She knew exactly what we wanted and executed it effortlessly.

    - Michelle and Kris

Christine likes to approach a room like a woman’s outfit:

Modern kitchen with white cabinets and dark blue honeycomb tile backsplash, a window above the sink with plants, and stainless steel appliances.
A woman with long wavy blonde hair wearing a black lace top and a pink tulle skirt, sitting against a white wall, smiling at the camera.

“Buy great, timeless pieces that have longevity and accessorize with less expensive items! Make this your design motto and you will be successful. “I’ve always loved how Fashion intersects with Interior Design, and frankly I cannot get enough of both. If you love the clothes in your closet, then why shouldn’t that style or colour be reflected in your home? If you’ve got great style…so should your home — “Decorate as you dress” is her motto!

RECENT PROJECTS

Modern kitchen with white cabinets, a navy blue island, marble countertops, and three brown leather barstools. Gold fixtures and a large window provide natural light.
GILLESPIE LANE PRINCIPAL ENSUITE
A modern kitchen with white and black cabinets, gold hardware, a black and gold oven, a black and gold range hood, a wooden cutting board, a decorative wreath, and a vase with pink flowers.