--- title: "Lamadeleine Design — Architects & Building Designers | Houzz" canonical_html_url: https://www.houzz.com/professionals/architects-and-building-designers/lamadeleine-design-pfvwus-pf~726945742 markdown_url: https://www.houzz.com/md/professionals/pf~726945742.md entity_type: LocalBusiness business_name: "Lamadeleine Design" category: ["Architects"] image: https://st.hzcdn.com/fimgs/3c1324a009e7998e_5810-w400-h400-b0-p0--.jpg address: "Barrie, Ontario L4N 9S3, Canada" phone: "(249) 315-4813" website: http://www.lamaddesign.com rating: 5 review_count: 2 years_in_business: 27 last_updated: 2026-09-03 --- # Lamadeleine Design > Industry Leading Architects & Building Designers in Ontario Original Houzz profile: [Lamadeleine Design](https://www.houzz.com/professionals/architects-and-building-designers/lamadeleine-design-pfvwus-pf~726945742) ## Professional summary - **Primary category:** Architects - **Location:** Barrie, ON - **Serves:** Aurora, Barrie, Blue Mountain, Huntsville, Markham, Newmarket, North York, Oakville, Ontario, Orangeville, Pickering, Toronto, Vaughan - **Houzz rating:** 5.0 out of 5 (2 reviews) ## About ### Houzz Badges - Houzz Pro Software User - High-end - Offers Custom Work - 27 years in business ### Business highlights - 27 years in business - High-end - Offers Custom Work Lamadeleine Design is a bespoke residential design studio focused on custom homes across Ontario. Each project is designed and led personally by Phil, with a small team supporting coordination and construction documentation. The work spans urban infill, rural estates, and waterfront properties, with an emphasis on balanced proportions, clear layouts, and well-resolved details. The approach is to think through the design thoroughly before construction begins—reducing uncertainty on site and allowing the build to proceed with clarity and efficiency. The studio works with a limited number of clients each year who value a considered process, strong design, and a high level of involvement from concept through construction drawings. ### Services Provided - Architectural Design - Building Design - Architectural Drawings - Custom Homes - New Home Construction - Home Additions - Home Extensions - 3D Rendering - Landscape Plans - Design Consultation - Feng Shui Design - Interior Design - Landscape Design ### Areas Served - Aurora - Barrie - Blue Mountain - Huntsville - Markham - Newmarket - North York - Oakville - Ontario - Orangeville - Pickering - Toronto - Vaughan ### Typical Job Cost CAD 2,500,000 - CAD 5,000,000 Construction budgets for Lamadeleine Design projects typically begin around $2.5 million and often extend beyond $5 million, depending on size, complexity, site conditions, and level of finish. ## Business Details | Field | Value | | --- | --- | | Business Name | Lamadeleine Design | | Address | Barrie, Ontario L4N 9S3, Canada | | Phone | (249) 315-4813 | | Website | http://www.lamaddesign.com | | Years in business | 27 | ## Contact - **Houzz profile:** [Lamadeleine Design](https://www.houzz.com/professionals/architects-and-building-designers/lamadeleine-design-pfvwus-pf~726945742) - **Website:** http://www.lamaddesign.com - **Phone:** (249) 315-4813 ## Credentials **Certifications & Awards** - Led by the founder of Custom CADD, recognized with Best of Houzz for Service, 2013–2026, finalist at the 2025 CHBA Awards in the Large Net Zero category, with projects published in House & Home, Best Side Magazine, Our Homes Magazine, GoodLife Magazine, and 25 Most Beautiful Homes. ## Reviews **Overall rating: 5.0 out of 5 — 2 reviews** *Aspect averages:* - Work Quality: 50.0 - Communication: 50.0 - Value: 50.0 ### Featured Review **★★★★★ — Katherine Gregory, April 2026** > My husband and I have extensive experience with new builds and architects. Without question Phil Lamadeleine is the very best we have ever engaged . It was a tricky design and extensive, with the actual build renovation taking over 2 years. Phil listened intently to our initial asks and wish list and designed multiple options as well as design futures. Without hesitation , Phil offered immediate solutions to various build challenges that typically occur once construction commenced not to mention countless money saving alternatives. Additionally, as we are within the greenbelt and typical Ontario municipal build code restrictions and bureaucracy , Phil successfully navigated our permit process with his extensive expertise. > > Phil's tremendous creativity, attention to the massive amounts detail and listening to his customers is what sets him apart. When the design was completed, Phil remained engaged throughout the entire process, always putting the client first. > > We will continue to use Phil for all our future renovations/builds. ### All 2 reviews **★★★★★ — LVZ Design, Aug. 2026** > We have had the pleasure of working with Phil Lamadeleine and his team at Custom CADD for over 15 years, and I can say without hesitation that he is one of the best in the business. > > As interior designers working on high-end custom homes and renovations, we rely heavily on the quality of the architectural drawings we receive. Phil’s plans are exceptionally accurate, thorough and easy to read. They follow industry standards, contain the level of detail builders and trades actually need, and most importantly, they can be confidently built from. > > Phil also brings an incredible depth of knowledge to every project. His understanding of the Ontario Building Code and local authorities is exceptional, including the complexities of conservation authorities and Lake Simcoe shoreline properties. When something complicated comes up, Phil is someone you want at the table. > > But what has kept us working with Phil goes well beyond his technical ability. He is a genuine team player who always has the client’s best interests at heart. He listens to the designer, builder and trades, and there is simply no ego involved. He is responsive, approachable, friendly and just a great guy to work with. > > His team deserves mention as well. Many of the people working with Phil have been with him for more than a decade. In our industry, that says a lot about the kind of person he is and the business he has built. > > I’m excited to see Phil bring his years of experience into Lamadeleine Design and this next chapter of his business. > > And perhaps the strongest recommendation I can give: Phil designed my own home. I trusted him with my house, and if I ever build another one, Phil will absolutely be the person I call. > > After more than 15 years of working together, I couldn’t recommend Phil and his team more highly. ## Selected projects - [Video Testimonial](https://www.houzz.com/hznb/projects/video-testimonial-pj-vj~7898690) - Location: Not specified - Photos: 1 - [Stonebridge Estate](https://www.houzz.com/hznb/projects/stonebridge-estate-pj-vj~7833953) - Location: Caledon East, ON - Photos: 13 - Description: Stonebridge Estate is a complete reimagining of a rural property into a highly orchestrated luxury compound. Set on private acreage with shaped ponds, stone bridges, waterfalls and long formal drives, the project unifies architecture, landscape and infrastructure into a single, controlled vision. Originally a 4,820 sq. ft. residence over a fragmented lower level, Stonebridge was expanded and refined to roughly 7,500 sq. ft. above grade, more than 3,100 sq. ft. of finished walkout space and an 80… - [Landmark Lakefront](https://www.houzz.com/hznb/projects/landmark-lakefront-pj-vj~7833964) - Location: Shanty Bay, ON - Photos: 13 - Description: Landmark Lakefront is a fully realized modern-contemporary residence on Lake Simcoe, designed around unbroken water views, a sculptural mono-stringer stair and seamless transitions between interior living, covered terraces and a tiered stone waterfront landscape. Commissioned by Canadian artist Zarum and later sold for just under eight million dollars, it stands as a built example of Lamadeleine Design's modern lakefront capability. The house comprises 7,300 sq. ft. above grade, supported by a f… - [Davisview House](https://www.houzz.com/hznb/projects/davisview-house-pj-vj~7833896) - Location: Newmarket, Ontario - Photos: 15 - Description: Davisview House is a large-format country estate planned for a family that lives, works, hosts, worships, trains and relaxes at home. Classical in composition and silhouette but completely contemporary in program, it combines a gallery-like arrival, an indoor pool pavilion, serious garage strategy and a stacked suite of wellness and entertainment spaces — without losing clarity or dignity. Davisview House is planned at an estate scale of approximately 10,724 sq. ft. above grade, plus a 1,512 sq.… - [Blackpine House](https://www.houzz.com/hznb/projects/blackpine-house-pj-vj~7833970) - Location: Shanty Bay, ON - Photos: 3 - [County Lake House](https://www.houzz.com/hznb/projects/county-lake-house-pj-vj~7893424) - Location: Prince Edward, ON - Photos: 7 - [Residences in Design \| Current Work](https://www.houzz.com/hznb/projects/residences-in-design-current-work-pj-vj~7898458) - Location: Not specified - Photos: 8 - Description: A collection of custom residences currently moving through various stages of design development, technical documentation and permitting across Ontario. These projects represent homes that have not yet entered construction. Some are still being refined architecturally, while others have progressed into detailed construction drawings, consultant coordination, municipal approvals or the final stages of permitting. Together, they provide a look at the work that happens well before a custom home begi… - [Under Construction \| Current Residences](https://www.houzz.com/hznb/projects/under-construction-current-residences-pj-vj~7898405) - Location: Not specified - Photos: 10 - Description: A collection of custom residences currently in design, development and construction across Ontario. This portfolio offers a look at projects before they reach the finished-photography stage, including architectural concepts, exterior visualizations, material studies and progress images from active construction sites. The homes represented here range in architectural character from contemporary and modern farmhouse to Craftsman, Arts & Crafts and more traditional estate residences. Each is develo… [See all 8 projects](https://www.houzz.com/professionals/architects-and-building-designers/lamadeleine-design-pfvwus-pf~726945742) ## Video - [Company video](https://player.vimeo.com/external/1219001230.m3u8?s=6e9e24dd7fbbf899cb63595c266dd959715e2223&oauth2_token_id=1384357804) ## Frequently Asked Questions **Do you provide full-service architectural services through construction?** Yes. Lamadeleine Design provides a full-service residential design process from initial concept through construction support. We coordinate design development, permit and construction drawings, consultants, builder collaboration and ongoing design guidance during construction. This continuity helps protect the original design intent, maintain consistency as decisions evolve and gives clients a single point of coordination from the earliest planning stages through completion. **Do you have experience with luxury or high-end homes?** Yes. Lamadeleine Design specializes in luxury custom homes, estate residences, lakefront properties and major residential transformations. Our experience includes large, highly detailed homes requiring close coordination between architecture, interiors, landscape, engineering and construction. We focus on creating refined, highly personal homes that respond to the client, the property and the surrounding context, with every detail carefully considered from initial concept through completion. **Do you offer 3D renderings or visualization during the design process?** Yes. We use 3D modelling and visualization throughout the design process to help clients clearly understand the scale, proportions, materials and overall character of their home before construction begins. Photorealistic exterior renderings can also be developed to further refine key design decisions and provide a clear picture of the finished home. This gives clients greater confidence in key decisions and helps resolve design details before they become costly changes on site. **How do you help clients design within their construction budget?** Budget is considered from the beginning, not after the design is complete. We help establish realistic priorities, evaluate size, complexity, materials and site conditions, and involve builders or cost consultants when appropriate. As the design develops, we continuously assess decisions against the construction budget so the home remains both aspirational and financially achievable. Early pricing checkpoints help identify costly decisions before they become expensive changes. **Do you design fully custom homes?** Yes. Every Lamadeleine Design home is fully custom, developed specifically for the client, the property and the way they want to live. We consider site positioning, topography, views, sunlight, privacy, natural features and surrounding context from the outset. Each home is then shaped around these conditions, along with the client’s architectural vision, functional priorities, lifestyle and construction budget. The result is a home that truly belongs on its site. *FAQ content may be generated based on the Pro's Houzz profile and website.* ## Ideabooks - [My Project](https://www.houzz.com/ideabooks/185122406/list/my-project) — 1 idea [See all 1 ideabook](https://www.houzz.com/ideabooks/users/webuser-210732637) --- *Source: Houzz professional profile. Reflects the profile as of 2026-09-03.*