--- title: "de sousa designs — Architects & Building Designers | Houzz" canonical_html_url: https://www.houzz.com/professionals/architects-and-building-designers/de-sousa-designs-pfvwus-pf~402774131 markdown_url: https://www.houzz.com/md/professionals/pf~402774131.md entity_type: LocalBusiness business_name: "de sousa designs" category: ["Architects"] image: https://st.hzcdn.com/fimgs/731388b90f05096b_3420-w400-h400-b0-p0--.jpg address: "Markham, Ontario, Canada" latitude: 43.8739 longitude: -79.2598 phone: "(647) 444-7285" website: http://www.desousadesigns.com rating: 4.9 review_count: 8 best_of_houzz_awards: 5 followers: 107 last_updated: 2026-08-16 --- # de sousa designs Original Houzz profile: [de sousa designs](https://www.houzz.com/professionals/architects-and-building-designers/de-sousa-designs-pfvwus-pf~402774131) ## Professional summary - **Primary category:** Architects - **Location:** Markham, ON - **Serves:** Agincourt, Agincourt North, Aurora, Box Grove, Brimley, Brown's Corners, Buttonville, Clarks Corners, Downsview, Eglinton East, Guildwood Village, Highland Creek, Hogg's Hollow, Kennedy Park, Malvern, Maple, Markham, Milliken, Mississauga, Morningside, North York, Parkway West, Pickering, Pleasant View, Port Union, Richmond Hill, Sc, Scarborough, Scarborough Township, Steeles, Stouffville, Thornhill, Unionville, West Hill, Whitchurch-stouffville, Willowdale, Woodbridge, York Mills - **Houzz rating:** 4.9 out of 5 (8 reviews) - **Best of Houzz:** 5 awards (2014–2021), for Service. ## About ### Houzz Badges - Star Houzzer - Recommended on Houzz - 100 Ideabook Saves An architectural design and consulting firm serving the Greater Toronto Area and Southern Ontario, specializing in Custom Homes, Cottages, Renovations and Additions. ### Services Provided - Architectural Design - Building Design - Home Remodeling - Architectural Drawings - Custom Homes - House Plans - Home Additions - Home Extensions - 3D Rendering - Accessory Dwelling Units (ADUs) - Construction Drawings ### Areas Served - Agincourt - Agincourt North - Aurora - Box Grove - Brimley - Brown's Corners - Buttonville - Clarks Corners - Downsview - Eglinton East - Guildwood Village - Highland Creek - Hogg's Hollow - Kennedy Park - Malvern - Maple - Markham - Milliken - Mississauga - Morningside - North York - Parkway West - Pickering - Pleasant View - Port Union - Richmond Hill - Sc - Scarborough - Scarborough Township - Steeles - Stouffville - Thornhill - Unionville - West Hill - Whitchurch-stouffville - Willowdale - Woodbridge - York Mills ## Business Details | Field | Value | | --- | --- | | Business Name | de sousa designs | | Address | Markham, Ontario, Canada | | Phone | (647) 444-7285 | | Website | http://www.desousadesigns.com | | Followers on Houzz | 107 | **Social profiles:** - Facebook — facebook.com/desousadesignsbuild - Blog — www.desousadesigns.com ## Contact - **Houzz profile:** [de sousa designs](https://www.houzz.com/professionals/architects-and-building-designers/de-sousa-designs-pfvwus-pf~402774131) - **Website:** http://www.desousadesigns.com - **Phone:** (647) 444-7285 ## Credentials - **Best of Houzz:** 5 awards (2014–2021), for Service. ## Reviews **Overall rating: 4.9 out of 5 — 8 reviews** ### All 8 reviews **★★★★★ — dylan degidts, March 2020** > I hired Paul to design and manage a residential construction project in Toronto. Paul was very enthusiastic and eager to come up with a design that was both functional and unique in it’s design. Paul was very knowledgeable when it came to different codes that would have to be met. He also had really good suggestions when it came to some of the different materials that could be used. I would definitely recommend using Paul for your next project. He was honest, reliable, and trustworthy throughout the project. He was able to manage expectations and walked me through the permit process with the city. Couldn’t be happier with the end result, and would definitely use him again in the future. **★★★★★ — Mick Oliveira, Aug. 2019** > De Sousa Designs did a Fantastic job on our 2nd Floor Master Ensuite addition design. Paul was willing to work with us through several design concepts and design iterations until we were completely happy with the design. Paul really listened to us and worked with in a very collaborative way. We sailed through the municipal permitting and Inspection processes which was largely due to the quality and completeness of the design drawings prepared by De Sousa Designs. I would not hesitate recommending De Sousa Designs to anyone looking to plan a major residential construction project or addition. **★★★★★ — Barbara Jackman, June 2017** > Paul is a lovely person and a good architect. He was very thorough in helping us with our house plans, anticipating issues, sitting down and explaining them, and discussing options. I would recommend him to anyone who wants to renovate or reconstruct their homes. **★★★★ — graham527, Nov. 2014** > Hired de souse designs for architectural work/drawings to be done as well as gaining permit permission - Paul was not only knowledgeable but fast and efficient taking the project from start to finish and following up on all details - very pleased with work, cost and outcome - recommend him to you all. **★★★★★ — Partridge Fine Landscapes Ltd., Aug. 2013** > de sousa designs is fast, very knowledgable and great to work with! > The designs we received were detailed thoroughly and very clearly presented. In fact, the builder on this project commented he had never seen drawings so nice to read in his career. > Aside from great drawings, de sousa designs was a liaison with the city for permit research and submittal and did an excellent job and persevered though some difficult requirements like a pro. > We would highly recommend de sousa designs to others. **★★★★★ — sashpal, April 2013** > I hired De Sousa designs for designing my home renovations . The project was approx. $300000.00 The company did an excellent job. From drawings to getting permit from city , coordinating things between different professionals was done with great professionalism. Things were completed on time . I am very greatful to Mr Paul De Sousa for the wonderful job he did for me. Dr S. Sandhu. Brampton. **★★★★★ — ysimao, April 2013** > Paul is very professional and certainly qualified. He is able to provide great ideas, but is first concerned with what you want. I would certainly recommend his services. **★★★★★ — User, April 2013** > I have worked with Paul on a number of projcts over the past few years and would not hesitate to recommend him to anyone who is thinking about renovating or building new for any future projects. ## Selected projects - [High Park Re-Model](https://www.houzz.com/hznb/projects/high-park-re-model-pj-vj~5965645) - Location: Toronto, ON - Photos: 10 - [Palisades Remodel](https://www.houzz.com/hznb/projects/palisades-remodel-pj-vj~2319297) - Location: Toronto, ON - Photos: 18 - [Crescent Rd. House](https://www.houzz.com/hznb/projects/crescent-rd-house-pj-vj~2315830) - Location: Mississauga, ON - Photos: 6 - [West End House](https://www.houzz.com/hznb/projects/west-end-house-pj-vj~2312019) - Location: Not specified - Photos: 16 - [Wendover House](https://www.houzz.com/hznb/projects/wendover-house-pj-vj~2299164) - Location: Toronto, ON - Photos: 15 - [Custom Home Designs by de sousa designs](https://www.houzz.com/hznb/projects/custom-home-designs-by-de-sousa-designs-pj-vj~78491) - Location: Not specified - Photos: 12 [See all 6 projects](https://www.houzz.com/professionals/architects-and-building-designers/de-sousa-designs-pfvwus-pf~402774131) --- *Source: Houzz professional profile. Reflects the profile as of 2026-08-16.*