Modern Residential Architecture and Design in Toronto
Residential Design for Custom Homes, Renovations, and Multiplexes
baukultur/ca is a Toronto residential design studio creating custom homes, major renovations and additions, multiplexes, laneway houses, and garden suites across Toronto and the GTA.
Many clients come to us before their project is defined. They may be deciding whether to renovate or rebuild, add space or create a second home, develop a multiplex, or phase the work over time. We assess the property, compare viable options, identify likely approvals, and show how each path affects cost, timing, construction, and long-term use.
Once a direction is chosen, we develop the architecture, interiors, building performance, and permit documentation together, coordinating consultants and construction decisions as the project advances.
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Define the Project Before the Design Begins
Before design begins, the first task is to determine what the property needs to make possible. A Toronto property may support a renovation, addition, replacement home, multiplex, laneway house, garden suite, or a phased combination. Each path has different implications for cost, approvals, construction disruption, rental income, and long-term flexibility.
We test these possibilities against the existing house, zoning, trees and ravine conditions, structure, servicing, financing, timing, and the household’s plans. From this, we define what should be retained, changed, added, or rebuilt, and establish a project scope that can be designed, approved, budgeted, and constructed with confidence.
Different Residential Projects Require Different Decisions

Custom Homes
A custom home begins with the property: orientation, views, privacy, street presence, garden connection, zoning, and budget. These conditions establish the size, organization, massing, and relationship to the site before the structure, interiors, materials, and building systems are developed.
Each custom home is shaped by its site and the life it needs to support. Room proportions, daylight, privacy, circulation, materials, structure, and building systems are resolved together so the home supports daily routines, feels coherent, and remains adaptable over time.

Major Renovations and Additions
The first decision is what should remain, what should change, and where new construction adds enough value to justify its cost. Existing structure, room proportions, building code, mechanical systems, construction sequencing, and the character of the house all affect that answer.
New work is designed around what is worth retaining, improving daylight, circulation, comfort, energy performance, and the relationship to the outdoors.

Multiplexes
A multiplex must resolve more than unit count. Each household needs a complete home with daylight, privacy, storage, acoustic separation, efficient circulation, outdoor space, and a clear entrance.
baukultur/ca designs duplexes, triplexes, fourplexes, and other small multi-unit buildings for owner-occupiers, multi-generational families, groups building together, and boutique residential developers. Ownership, rental strategy, financing, servicing, structure, and future flexibility are considered within the early design stages.

Laneway Houses and Garden Suites
Laneway houses and garden suites can create rental income, support family members, enable aging in place, or add a flexible secondary use.
On compact Toronto properties, emergency access, trees, servicing, privacy, parking, and the relationship to the main house establish the limits of the project. Daylight, storage, circulation, and outdoor space determine whether the secondary home functions as a complete place to live.
Experience Demonstrated Through Completed Work
Since 2015, baukultur/ca has completed more than 150 residential projects across Toronto and the GTA, including custom homes, major renovations and additions, multiplexes, laneway houses, garden suites, ravine properties, and integrated interior design.
The projects vary in scale, site conditions, and residential purpose. Across them, the studio brings together spatial design, approvals, building performance, materials, consultant coordination, and construction so that each project is resolved as one whole.
Glen Manor Haus is a new custom home at the edge of the Glen Manor Ravine, shaped around daylight, tree canopy, topography, and a restrained material palette.
Haus H46 reworks a 1905 Beaches house as a contemporary, energy-conscious home while maintaining a clear relationship with the established streetscape.
zero79 places two independent three-storey homes, each with a finished basement, on a standard 25-foot Toronto infill lot. Ownership, access, privacy, outdoor space, building performance, and construction were considered together from the outset.
Haus A36 combines a custom family residence, a second full-scale home, and a laneway house on one Toronto lot, using the additional homes to support family life, rental income, and long-term flexibility.
Architecture, Interiors, and Building Performance Developed Together
Layouts, structure, mechanical systems, materials, and details are developed together. Each decision affects the others and the project as a whole, helping protect spatial quality and reduce conflicts that might otherwise emerge later.
Space, Structure, and Site
Space proportions affect daylight, furniture, circulation, and structure. Window positions determine views and privacy while also affecting the building envelope and interior layout. A stair can organize the plan, bring light into the centre of the house, and structure both vertical and horizontal circulation.
These relationships are resolved while they can still be changed without costly rework.
Interiors and the Details of Daily Use
Interior design begins with the initial layout. Kitchens, millwork, storage, lighting, fixtures, finishes, and material transitions are developed alongside the architecture.
A built-in can divide space and provide storage. A change in material can clarify circulation. A carefully placed opening can connect rooms while preserving privacy. Together, these decisions connect the overall plan to the details used every day.
Explore Residential Interior Design in Toronto
Comfort, Durability, and Energy Use
Orientation, insulation, windows, air sealing, ventilation, heating and cooling, low-VOC materials, and future adaptability are considered within the design and budget.
Some projects pursue Passive House-informed, Net Zero, or all-electric strategies. Others focus on targeted upgrades to an existing house. The appropriate level of performance depends on the property, existing conditions, scope, and budget. The objective is better comfort, healthier indoor air, greater durability, and lower energy use without separating performance from the rest of the design.
From Feasibility Through Construction
Feasibility and Project Definition
We document existing conditions, review planning and zoning constraints, identify likely approvals, test options, and establish the project scope. Major assumptions are tested here, before the design is advanced.
Design, Approvals, and Consultant Coordination
Schematic design develops the plan, massing, circulation, and relationship to the site. Design development resolves structure, interiors, building systems, materials, and key details. Permit and approval work is coordinated with the consultants required for the project.
Clients can see what is being decided, why it matters, and what follows.
Pricing and Construction
During pricing and construction, we can coordinate contractors, respond to site questions, review pricing and invoices, assess proposed changes, prepare material and fixture selections, conduct site reviews, and resolve design and construction issues.
The scope is tailored to the client. Some clients want to take part in every discussion and selection. Others prefer us to prepare recommendations and bring forward only the decisions that require their approval. With comprehensive involvement, the client’s role can be reduced largely to approving key decisions and authorizing payments.
Site decisions, substitutions, and changes are assessed against the priorities established earlier rather than treated as isolated choices.
Common Questions at the
Start
Should We Renovate, Add, or Rebuild?
We compare the condition and potential of the existing house with zoning, approval requirements, construction cost, disruption, timing, and long-term use. The answer depends on the property and the client’s priorities, not on a general preference for renovation or new construction.
Can the Property Support a Multiplex, Laneway House, or Garden Suite?
We review lot dimensions, zoning, access, trees, servicing, parking, existing buildings, and likely municipal approvals. This establishes what can fit, what can be approved, and whether the project supports the client’s ownership, family, or rental goals.
How Involved Do We Need to Be During Construction?
Clients choose the level of involvement they want. Some remain closely engaged. Others prefer baukultur/ca to coordinate the work, prepare recommendations, review costs and changes, and present the key decisions for approval.
Great residential architecture happens when creative design is supported by technical understanding and construction knowledge.
Direct Experience Across Design, Approvals, and Construction
Since 2015, baukultur/ca has completed more than 150 residential projects across Toronto and the GTA, including custom homes, renovations and additions, multiplexes, laneway houses, garden suites, and other specialized residential projects.
Felix Leicher brings experience in architectural design, construction management, and project delivery in Canada and Europe. That experience matters when design decisions affect approvals, consultant coordination, pricing, sequencing, and work on site.
baukultur/ca is intentionally small. Clients work directly with Felix from the first property review through design, approvals, pricing, and construction. This provides a consistent point of contact and reduces handoffs between the early idea and the built work.
What Our Clients Say
Posted on Google Raheel L28 April 2026Trustindex verifies that the original source of the review is Google. I would give 10 stars if I could. Working with Felix to design our new home has been one of the best decisions we’ve made. The space was thoughtfully designed with our family’s needs in mind — from the overall layout down to the smallest details — making the most of every square foot. Felix was patient, flexible, and deeply attentive to our requirements. His practical guidance helped us create a home that is not only highly functional, but also beautiful and serene.Posted on Google Andrew F10 December 2025Trustindex verifies that the original source of the review is Google. I am pleased to provide this review for baukultur. Felix provided first rate architectural design services for a significant two-floor extension and basement lowering to our Leslieville home. Felix took us through each step of the design process. He patiently answered our questions and provided excellent design recommendations and referrals. We are very pleased with the results. We are attribute the success of this project to Felix's expertise!Posted on Google Sue5 November 2025Trustindex verifies that the original source of the review is Google. We had such a good experience working with Felix, finding him to be knowledgeable, professional and approachable. His standards are high and we appreciated his attention to providing the best quality possible. In terms of design, we chose him for his contemporary style and good taste and he did not disappoint. It was easy to discuss things with him; he always answered promptly and kept things moving forward and on track. Our total renovation consisted of turning a single family home into a multi-generational home for my son and his family with a separate apartment for myself. After a year, we are really enjoying our new space - it is beautiful and functional.Posted on Google Shelagh B6 October 2025Trustindex verifies that the original source of the review is Google. We have worked with Baukultur on several projects and plan to use them for many more! Felix is incredible to work with-- he knows how to navigate the city's bylaws and codes and has an incredible eye for design and environmental efficiencies I can't say enough about this firm!Posted on Google Shannon D28 September 2025Trustindex verifies that the original source of the review is Google. Our experience with Felix was outstanding. He brought his architectural expertise to the process while keeping the focus on creating the home we envisioned. His thoughtful suggestions added value, but his priority was always ensuring the final result reflected our wishes. The outcome is exactly what we hoped for, a beautiful multi-generational home filled with open space and natural light Aside from having a great sense of design, Felix was very organized. This - as well as introducing us to a great contractor - helped us to finish our project early, which is almost unheard of these days! It also really helped that Felix acted as another layer of oversight for the entire project. This ensured there were no major missteps. We felt as though Felix was always present when we needed him and made sure to check in continuously over the course of the project and even after we finished. We would definitely work with him again and highly recommend his services!Posted on Google Ralph D26 September 2025Trustindex verifies that the original source of the review is Google. Our cottage design was a smooth process thanks to Felix and his thorough knowledge.Posted on Google Asia D23 September 2025Trustindex verifies that the original source of the review is Google. Felix and baukultur/ca demonstrate genuine professionalism, aesthetic and functionality in the architectural designs. Felix designed us a house addition and created a space that seamlessly integrates with our existing house from the 1960s, to the point where people are surprised that it is not an original construction. Through discussions, helpful suggestions and precise revisions, he understood our needs, maximized the use of space and fine tuned the design into a home that exceeded our expectations. Credits to Felix’s preparation and experience with city regulations, our drawings were approved faster than we expected. When looking for contractors and working with tradespeople, they remarked on the outstanding detail of plans that reflect a work ethic and reliability that is rare to find. We are wholeheartedly grateful to Felix for designing our dream home and recommend him to anyone seeking an architect with experience, skill and integrity. Please reach out to Felix for my contact information if you would like to photos see the finished home.Posted on Google Paul R22 September 2025Trustindex verifies that the original source of the review is Google. Baukultur is excellent in every way. Beautiful design of a large scale reno to our grand old house. Done in a timely manner and with great communication. Felix is not only an excellent (award winning) architect - he also works closely with his clients and the contractors. From the overall large picture concept to the smallest detail - we highly recommend Baukultur.Posted on Google Liam H22 September 2025Trustindex verifies that the original source of the review is Google. I’ve had the chance to work with Felix on multiple projects, and he’s one of the best architects I’ve collaborated with. Felix brings a clear vision and creative energy to every job, but he also listens and values input from the trades, which makes the whole process smoother. He’s professional, approachable, and detail-oriented — always making sure the design not only looks incredible but also works in real life. It’s rare to find someone who combines strong creativity with such a practical, respectful approach. Felix is a true professional and a pleasure to work alongside.Load moreVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Begin with a Conversation
An unhurried conversation about your property, your goals, and what is realistically achievable is the right place to start.
You may already have a clear project in mind, or you may still be considering what the property can support. We would be glad to discuss the opportunities, constraints, likely approvals, and practical next steps.
info@baukultur.ca | 647-938-6941 | 2216 Queen Street East, Toronto










