A Second-Floor Addition and Basement Unit in North York

At the Invermay project in North York, the design reimagines an existing bungalow to create more room for modern living. The proposal adds a second floor and includes a separate unit in the basement, making better use of the home’s existing footprint.

The original bungalow has a modest, single-storey profile. The proposed design gives it a renewed street presence with a full second storey, light masonry, dark roof shingles, and carefully placed windows. Steep gables and layered rooflines add character and help break down the home’s larger scale.

More space for changing needs

Adding a second floor creates the opportunity for additional bedrooms, bathrooms, and private family space without relying entirely on a larger ground-floor footprint. The basement unit adds another layer of flexibility, providing separate living space within the home.

Together, these changes make the design work harder for the property. The main and upper floors can support the household’s everyday needs, while the basement unit offers independent accommodation. Each level needs to be planned carefully so that access, privacy, and the overall layout work well together.

A design that feels connected

A second-floor addition should feel like part of the home rather than an afterthought. At Invermay, the roof forms, window proportions, exterior materials, and entrance details help tie the new upper level to the existing house.

The covered entry and arched details add visual interest to the front elevation. Dark window frames contrast with the light exterior, while the landscaping and front walk help the larger home sit comfortably within its North York streetscape.

Planning for a basement unit

A basement unit brings additional design considerations. The layout, entrance, ceiling heights, natural light, and life-safety requirements all need to be addressed as part of the planning process. Zoning and building-code requirements also need to be reviewed for the specific property and proposed use.

The existing structure is another key consideration. A second floor adds weight to the home, so the foundation and framing need to be reviewed to determine what work may be required. Coordinating these requirements early helps align the design with the property’s conditions and the homeowner’s goals.

How Cadaxx Design can help

Cadaxx Design helps homeowners plan additions and basement units from the early design stage through permit drawings and application coordination. Our team can review the property’s zoning and building requirements, develop a design that responds to the home and the homeowner’s goals, and coordinate structural and other engineering input as needed.

Every property is different, so the first step is understanding what you want to achieve and what the site can support. If you are considering a second-floor addition, a basement unit, or both, Cadaxx Design can help you explore the possibilities and guide the project toward permit submission.

A more adaptable home

The Invermay proposal shows how a bungalow can be transformed to meet changing needs. A second-floor addition creates room to grow, while a basement unit introduces a separate living space. Together, they offer a way to make more effective use of an existing home and property while giving the exterior a fresh, cohesive identity.

Considering an addition or basement unit in North York? Contact Cadaxx Design to discuss your project.