Split-Level Home Renovation: Modernizing Suburban Residential Interiors

Assessing the Existing Structure Before Renovation

A thorough structural assessment precedes every successful residential renovation. In Vieux-Longueuil, Quebec, a typical 1980s split-level home had remained virtually unchanged since construction – a common scenario for suburban properties nearing 40 years of age. Before any design work begins, the renovation team must evaluate the foundation, load-bearing walls, roof structure, and existing mechanical systems. Hiring qualified tradespeople for renovation work starts with understanding which experts need to review each system. A structural engineer inspects the foundation and framing, while an electrician evaluates the panel capacity and wiring condition, and a plumber checks drain lines and water supply pipes for corrosion or scale buildup.

The DESK architectes team approached this $180,000 renovation by first documenting every existing condition. Photographs, measured drawings, and a detailed material inventory gave the design team a complete picture of what could be kept, what needed replacement, and what could be modified. This upfront assessment – typically costing $3,000–$8,000 depending on property size – prevents costly surprises during construction. Hidden issues in older homes often include outdated electrical wiring, insufficient insulation, and load-bearing walls disguised as non-structural partitions.

Evaluating the Split-Level Layout

Split-level homes, popular throughout the 1970s and 1980s, present unique renovation challenges. The staggered floor levels create short stair flights between zones – typically three to five steps between the living room, kitchen, and bedroom levels. These transitions make open-plan renovations trickier than in single-level homes because the floor plates do not align. Protecting recessed lighting and ceiling fixtures during renovation work is especially important in split-level designs where ceiling heights vary between zones and debris can migrate between levels through open joist bays.

Budget Allocation by Renovation Phase

Spatial Reorganization Without Full Demolition

Not every renovation requires knocking down walls. The DESK architectes project demonstrates how spatial hierarchy can be redefined using additions rather than removals. The living room in a typical split-level runs as a long open space lacking defined zones. Rather than partitioning it with full-height walls, the design team introduced metal claustra – decorative room dividers – and built-in furniture blocks. These dark elements are oriented to emphasize the link from the front to the back of the room, framing views and guiding foot traffic without blocking sightlines. Well-planned family renovation projects share this approach: work with the existing volume rather than fighting it.

The Architectural Bench Solution

The staircase linking the living room to the kitchen became an opportunity for a dual-purpose intervention. On the living room side, an architectural bench made of white oak extends in continuity with the stair treads, creating a casual seating zone without occupying floor space. On the dining room side, a short drywall partition acts as a railing while visually screening the dining table from the living area. This approach – using a single element to solve two spatial problems – defines efficient renovation design. The bench serves as seating, the stair transition, and a visual anchor, all in one gesture. Fabricating custom millwork of this type costs $3,000–$8,000 depending on material and complexity but avoids the expense of moving load-bearing walls.

Claustra and Room Dividers

Metal claustra – perforated screens or slatted panels – provide visual separation without blocking light. In the Longueuil renovation, these dark-finished elements run perpendicular to the primary view axis, creating defined zones for conversation, reading, and circulation within the same open volume. Claustra can be fabricated from steel, aluminum, or powder-coated metal at costs ranging from $50–$150 per square foot installed. Wood slat dividers offer a warmer alternative at similar price points.

Kitchen and Bathroom Renovation Priorities

The mandate for the Longueuil renovation required complete reshaping of the kitchen, bathroom, and master bedroom – the three rooms where homeowners spend the most time and where renovation investment yields the highest return. The $180,000 total budget had to cover all finishes, fixtures, cabinetry, and appliances alongside structural and mechanical work. Lighting design trends in residential renovations show that kitchen and bathroom remodels benefit most from layered lighting schemes – ambient, task, and accent.

Kitchen Remodeling Strategy

For a split-level home kitchen, the primary design decisions revolve around workflow and storage. The existing kitchen footprint in the Longueuil property was preserved, but the interior layout was completely reworked. Key decisions included:

1. Replace all countertops with quartz or granite – these materials resist staining and handle the wear of daily cooking.
2. Install soft-close drawer slides and full-extension cabinet pull-outs for maximum storage access.
3. Position the dishwasher on one side of the sink and the trash pull-out on the other to streamline cleanup workflow.
4. Add under-cabinet task lighting on a separate dimmer switch for food preparation.
5. Specify a ventilation hood rated for at least 600 CFM if the range sits on an interior wall without a window.

Bathroom Complete Gut and Rebuild

A full bathroom renovation typically costs $12,000–$25,000 for a standard 5×8 ft room and rises to $30,000–$50,000 for a master bathroom. The key cost drivers are tile selection, fixture quality, and whether the plumbing rough-in locations change. In the Longueuil project, the bathroom was completely reshaped – meaning all fixtures moved to new locations, requiring new supply lines and drain connections cut into the slab or floor joists. Waterproof membrane systems under tile floors, Schluter-style drainage pans, and wall-hung vanities are standard specifications for renovated bathrooms aiming for a contemporary aesthetic and long-term durability.

Modern residential renovation lighting approaches emphasize placement over fixture count – a single well-placed sconce on each side of the bathroom mirror provides better task lighting than a single overhead fixture. Heated flooring, towel warmers, and humidity-sensing exhaust fans complete the renovation package for a bathroom intended to function as a daily retreat.

Lighting Design for Renovated Homes

Lighting makes or breaks a renovation. The same finishes and furnishings look dramatically different under well-planned lighting versus generic overhead fixtures. In the split-level context, lighting must account for varying ceiling heights between zones – the living room may have an 8-ft ceiling while the adjacent kitchen has 9 ft. Recessed lights with adjustable trims allow beam angles to be tuned for each zone. Successful renovation strategies always include a lighting plan drawn before construction starts, not during the finishing phase.

The DESK architectes team used dark metal elements and built-in furniture to create contrast zones that are then highlighted by directed lighting. A dark claustra panel against a white wall becomes a visual anchor when lit from above with an adjustable accent light. These contrast-driven lighting choices give the long split-level living room three distinct zones: a bright entry zone, a mid-lit seating area, and a softly lit dining zone near the stairway.

Layered Lighting by Zone

• Ambient layer: Recessed can lights or surface-mount fixtures on dimmers, spaced 4–6 ft apart for even general illumination.
• Task layer: Under-cabinet strips in the kitchen, sconces beside bathroom mirrors, desk lamps in the study.
• Accent layer: Track heads or picture lights aimed at artwork, textured walls, or architectural elements like the claustra dividers.

Each layer should be on a separate switch or dimmer circuit. Homeowners who install all lighting on a single circuit lose the ability to adjust the mood of a room. Dimmer switches cost $15–$40 each and add negligible wiring cost if specified during rough-in rather than after drywall.

Material Selection and Craftsmanship in Remodeling

Material choices during a renovation affect both the final look and the construction timeline. The DESK architectes project paired white oak for the architectural bench and stair treads with dark metal claustra and white drywall – a restrained palette that lets form rather than color define the spaces. White oak costs $6–$12 per board foot and requires a durable catalyzed lacquer finish for high-traffic stair applications. The general contractor, Projets H.E.T.A., and cabinetmaker Ébénisterie ALD coordinated closely to ensure that the millwork dimensions matched the rough openings exactly before drywall went up.

Quality renovation work on older homes depends on craftsmanship details that are invisible after finishing but critical during construction. Floor transitions between split-level zones must account for subfloor height differences – a 3/4-inch plywood layer on one side versus 1-1/8 inch on the other demands a tapered transition strip. Door casings, baseboards, and crown molding profiles should match across all levels for visual continuity. The DESK project replaced all interior finishes simultaneously rather than room by room, allowing consistent materials, paint colors, and trim profiles throughout the home.

Flooring Continuity Across Levels

One of the biggest visual improvements in a split-level renovation comes from unifying the flooring material across all levels. The Longueuil residence likely used the same engineered hardwood or luxury vinyl plank on every floor – the Unik Parquet products specified for the project run continuously from the entry through the living room and into the kitchen. This visual flow minimizes the disjointed feel that split-level homes often have, where each level uses a different floor covering. Transitions at stair landings should use a nosing profile that matches the flooring color and grain direction.

Budget-conscious renovations can still achieve visual continuity by using the same flooring material in all public zones (living, dining, kitchen, hallway) while reserving different materials for private spaces (bedrooms, bathrooms) that are naturally separated by doors. This approach reduces material costs by 15–25% compared to running the same floor throughout every room.