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Interior designer presenting a space plan and material palette for a modern Toronto home

Interior Design in Toronto | Space Planning, 3D Renderings & Design-Build Integration

Before demolition begins, Whole House Renovation's in-house design team delivers full home space planning, kitchen and bathroom layout optimization, 3D design renderings and virtual walkthroughs, Caesarstone and quartz surface selections, custom millwork and built-in cabinetry drawings, pot lighting and feature lighting layouts, complete material and colour finish schedules, permit-ready architectural drawings, and design packages that transfer directly into our fixed-price construction contract for homeowners across the GTA.

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Detailed 3D architectural rendering of a renovated open-concept living and kitchen space

Design That Builds: No Hand-Off, No Translation Gap

Most interior design happens in a vacuum. A designer creates a beautiful plan, then hands it to a contractor who has to interpret, price, and sometimes quietly redesign it. Things get lost in that hand-off: details, intent, and budget.

Whole House Renovation works differently. As a design-build renovation firm, the same company that designs your space also builds it. The design you approve is the home you get, with no translation gap and no finger-pointing between a designer and a contractor.

Our in-house design team plans your space before construction starts. We handle space planning, floor plans, interior elevations, finish and material selection, and detailed lighting plans, then carry that design directly into the build. 3D renderings let you see and adjust the result before any budget is committed.

Interior designer presenting a space plan and material palette for a modern Toronto home

What Changes When Design and Build Are One Team

The traditional separation between interior designer and contractor creates a hand-off problem. The designer produces drawings. The contractor interprets them, prices them, and sometimes modifies them to suit trade preferences. The homeowner approves a design and gets a slightly different result.

IssueSeparate Designer + ContractorWhole House Renovation
Design-to-build translationDesigner’s intent interpreted by a separate contractorSame team designs and builds
Scope changesBoth designer and contractor must revise separatelyOne revision, one team, one fixed-price adjustment
Material substitutionsOften made without designer involvementNever without designer sign-off
Budget certaintyDesign may exceed contractor’s pricing assumptionsDesign is built to the approved fixed budget
AccountabilitySplit between two separate businessesSingle point of contact throughout

This integration is particularly valuable on complex projects like whole-home renovations, additions, and condo gut-renovations, where design decisions cascade into structural, mechanical, and permit requirements simultaneously.

The Full Design Package

A full interior design package from our team covers every decision that affects how your renovation looks and functions, before construction begins.

Floor plan layouts show proposed furniture arrangement and spatial flow. 3D architectural renderings show the finished space from multiple angles with accurate material finishes. Interior elevations detail every significant wall, showing cabinet heights, tile patterns, and millwork details. The finish schedule lists every specified material by brand, product name, colour code, and supplier. Electrical and lighting plans show fixture placement, switch locations, and circuit requirements. Custom millwork drawings provide dimensions for built-in cabinetry, shelving, and feature walls.

This level of documentation separates a design that gets built accurately from one that accumulates change orders.

Detailed 3D architectural rendering of a renovated open-concept living and kitchen space

3D Renderings: Seeing Before Spending

3D architectural renderings are the single most valuable tool in a design-build renovation. They allow a homeowner to see and approve the finished space before demolition begins, to evaluate whether the island is the right size, whether the tile pattern reads correctly at scale, and whether the lighting creates the right atmosphere.

Changes made at the rendering stage cost nothing. Changes made after tile is on the wall cost thousands. We produce renderings using current material libraries: actual Caesarstone slab textures, specific Benjamin Moore or Farrow and Ball paint shades, and real cabinet door profiles. The approved rendering reflects what will actually be built.

Spatial Flow: How Rooms Actually Work

Spatial flow analysis evaluates how people move through a space. A kitchen that looks beautiful in a floor plan can still have a poorly positioned island that blocks the path between the refrigerator and the cooktop.

We model furniture placement in every space before finalising the floor plan. This determines the correct island dimensions relative to the work triangle, minimum clearances around dining tables and seating areas, door swing conflicts, and traffic flow between rooms in open-concept layouts.

Finish Schedules and Material Selection

A finish schedule is a room-by-room specification document that lists every material with enough detail to order it without further clarification. For a kitchen, it specifies the Caesarstone countertop colour and edge profile, the cabinet door style and paint code, the backsplash tile manufacturer and SKU, the grout colour and joint width, the faucet model number, and the hardware finish.

Electrical and lighting plans are produced alongside the finish schedule, coordinated with the electrical rough-in drawings that form part of the building permit application.

Custom Millwork: Where Design Becomes Architecture

Custom millwork is the element that most distinguishes a well-designed renovation. Standard cabinetry fills space. Custom millwork defines it, built to the exact height, depth, and profile of the room it lives in, integrating appliances, concealing mechanical elements, and creating architectural features that read as permanent parts of the building.

Our millwork process begins in the interior elevations: dimensioned drawings of every significant wall showing cabinet heights, reveal dimensions, panel proportions, and hardware placement. Once approved, they become shop drawings for the millwork fabricator.

Projects we regularly execute include full-height shaker kitchen cabinetry with integrated panel-ready appliances, built-in entertainment units with concealed cord management, custom bathroom vanities with integrated sinks, mudroom built-ins with bench seating and cubby systems, and home office millwork with integrated desk surfaces.

Interior Design Costs

Design ScopeTypical CostWhat’s Covered
Single room (kitchen or bath)$3,000 - $8,000Space plan, 3D rendering, finish schedule
Main floor redesign$8,000 - $18,000Floor plans, elevations, lighting plan, full finish schedule
Whole-home package$18,000 - $40,000+All rooms, complete finish schedule, millwork drawings, permit coordination

Design fees represent 8 to 15% of total project cost. The design phase is what makes a fixed-price build possible: every material, fixture, and finish is specified before the contract is signed. Clients who skip thorough design typically pay more during construction, not less.

Designing for Toronto’s Housing Stock

Toronto’s residential architecture spans century homes in Roncesvalles, 1960s bungalows in Scarborough, 1980s split-levels in North York, and glass-tower condominiums downtown. Each building type presents different structural constraints and different opportunities for spatial expansion.

Multifunctional space design is increasingly standard, driven by the cost of square footage. We design rooms that serve multiple purposes without looking cluttered: fold-away desks integrated into millwork, banquette dining with concealed storage, and murphy beds framed as built-in cabinetry.

Natural light strategy varies by neighbourhood and building orientation. A Liberty Village condo facing north needs a different lighting design than a Leaside semi facing south. We conduct daylighting analysis as part of space planning, identifying where reflected light can supplement direct sunlight and where artificial lighting needs to compensate.

Heritage homes in Leslieville, Cabbagetown, and the Annex add a further dimension: working within or sensitively extending existing architectural character. Period-appropriate millwork proportions and trim profiles are drawn into interior elevations so the renovation reads as a respectful extension of the original building.

Mood Boards and Concept Development

Once space planning is complete, we develop the design’s character through mood boards. A mood board for a kitchen renovation might combine a Caesarstone Bianco Drift countertop sample, a brushed nickel Kohler faucet, an oak stained millwork swatch, a Farrow and Ball paint chip, and a 3x12 honed Carrara tile profile.

This stage produces the finish schedule foundation: a document that lists every specified material by product name, colour code, finish, and supplier. Procurement proceeds without confusion or substitution errors.

Permits, BCIN, and Design Documentation

Interior design decisions have direct implications for permit requirements. Removing a wall, even a non-load-bearing one, requires a building permit if it affects electrical rough-ins or plumbing chases. We flag permit triggers at the design stage, before floor plans are finalised.

For permit applications that require drawings produced by a registered designer, our team includes designers with BCIN credentials who can produce and seal the relevant documentation.

Serving Homeowners Across the GTA

Our interior design service supports renovations across the full GTA: the City of Toronto, North York, Etobicoke, Scarborough, East York, Mississauga, Vaughan, Markham, and Richmond Hill. Design consultation and 3D review sessions are conducted on-site and in our studio. All documentation is shared digitally and remains accessible throughout the project.

Why Choose Us

Why Toronto Homeowners Trust Us With Their Design

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Design and Build, One Team

The design you approve flows straight into construction, so nothing is lost in translation.

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See It Before You Build It

3D renderings remove the guesswork from the most expensive decisions in your renovation.

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Designed to a Budget

Our designers plan within a fixed budget, so the design you fall in love with is one you can build.

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Full Finish Schedules

Every material, finish, and fixture is documented, leaving nothing to chance during the build.

Our Process

How Our Design Process Works

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Discovery

We learn how your household actually lives, then translate that into clear design goals.

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Space Planning

We develop floor plans, interior elevations, and spatial flow tailored to your home.

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Visualize in 3D

Detailed 3D renderings let you see and adjust the finished space before any budget is committed.

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Build Hand-Off

The approved design carries directly into our build team - no hand-off to a separate contractor.

Ready for a fixed price on your design project?

Book a free consultation. We plan every detail, then lock the price. No allowances, no surprises.

Our Work
Real Toronto Homeowners

What Clients Say About Our Design

★★★★★
4.9 from 150+ Google reviews
★★★★★
“The 3D renderings let us adjust the open-concept layout and cabinet heights before anything was built. Three rounds of revisions on the kitchen elevations and it was worth every one. The finished design matched the renders exactly.”
M
Michael D.
Etobicoke
★★★★★
“Whole House Renovation's design team produced full interior elevations, an architectural lighting plan, and a finish schedule before we signed off on construction. The layered lighting in the living room is something we get comments on constantly.”
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Nadia F.
Toronto
★★★★★
“We wanted custom built-ins for a home office and a millwork entertainment wall. Roy's team produced shop drawings for both before fabrication started. Everything fits perfectly.”
J
James R.
Markham
Got Questions?

Design Renovation FAQs

What does your interior design service include? expand_more
Our in-house interior design service covers discovery, space planning, detailed floor plans, interior elevations, 3D architectural renderings, material and finish selection, lighting plans, custom millwork detailing, and complete finish schedules. Because we are a design-build firm, the design carries directly into construction with no hand-off. Call Whole House Renovation at 1-437-465-7788 to get started.
Do I have to use you for the construction too? expand_more
Interior design works best when it is integrated with the build, and that is how we are set up. One team, design through construction. This avoids the gaps and finger-pointing that happen when a separate designer and contractor are involved.
Why are 3D renderings important? expand_more
A renovation involves expensive, hard-to-reverse decisions. 3D architectural renderings let you see the finished space and adjust it while changes still cost nothing. By the time construction begins, you already know exactly what you are getting.
Can interior design really stay within my budget? expand_more
Yes. Our designers plan within a fixed budget from the start, selecting materials and finishes that achieve the look you want at a cost the project can carry. The design flows into a fixed-price build, so the budget you set is the budget you keep.
How long does the design phase take? expand_more
The design phase varies with scope, from a few weeks for a single room to longer for a whole-home renovation. Thorough design up front makes construction fast, predictable, and free of costly mid-build changes.
What is a finish schedule? expand_more
A finish schedule is a complete document specifying every material, finish, fixture, and detail in your renovation. It leaves nothing to guesswork during construction and is a key part of how we lock in a true fixed price.
Do you design kitchens and bathrooms specifically? expand_more
Yes. Kitchens and bathrooms are the most design-intensive rooms in a renovation, and our interior design service handles their layouts, millwork, materials, and lighting in detail.
Do I need a separate interior designer if I hire a design-build firm? expand_more
No. Our design-build model integrates interior design and construction under one team, eliminating the handoff problems that arise when design and construction are managed separately.
What is ARIDO and why does it matter? expand_more
ARIDO is the Association of Registered Interior Designers of Ontario. Registered members have met education and examination standards and are bound by a professional code of ethics, providing accountability not available from unregistered practitioners.
How detailed are the 3D renderings? expand_more
Our renderings use actual material finishes, cabinet profiles, and fixture selections rather than generic placeholders. You see the real countertop colour, the actual tile layout, and the exact cabinetry style before any price is locked.
What is spatial flow analysis and why does it matter? expand_more
Spatial flow analysis evaluates how people physically move through a space. A floor plan that looks balanced can still have an island that blocks the work triangle or door swings that conflict. We model traffic paths before finalising the floor plan so problems are caught at the drawing stage.
What is a mood board and how is it used in the design process? expand_more
A mood board is a curated visual that combines material samples, paint chips, fixture images, and finish photographs to show how a room's selected materials interact. It translates style preferences into a concrete, reviewable palette. Mood boards are produced before any material is ordered.
What is included in electrical and lighting plans for a renovation? expand_more
Electrical and lighting plans specify every circuit, outlet location, switch position, and fixture type. For a kitchen, this includes pot light spacing, under-cabinet LED circuits, pendant heights, appliance circuits, and dimmer zones. These plans form part of the building permit application.
Projects book 3–4 months ahead

Ready to Start Your Design Project?

Book a free consultation and get a firm, fixed-price quote for your interior design services.

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