Basement & Income Suites

Built for homeowners and investors seeking safe, legal, and fully approved secondary units.

Legally compliant basement and secondary suites designed for comfort, rental income, and long-term value. Basement builder and income suite additions in Mississauga, Toronto, Oakville, Vaughan, Brampton and GTA. Safe, legal, high-quality suites built.

Basement & Income Suites

GrandBuild Homes is a trusted basement and income suite builder serving Mississauga, Brampton, Toronto, Oakville, Caledon, Vaughan, and the Greater Toronto Area. We design and build high-quality, code-compliant basement suites that add valuable living space and create reliable rental income opportunities.

We design and build bright, modern, and fully code-compliant basement and secondary suites. Whether you’re creating space for extended family or generating rental income, we manage zoning review, drawings, permits, construction, and final inspections from start to finish.

Our process ensures your suite is legal, safe, and approved, adding both functionality and long-term value to your home.

No matter the challenge, we build on what we know works and elevate your vision of success.

What’s Included

Our basement and income suite service is fully turnkey, covering planning, approvals, construction, and final occupancy.

Basement Builder & Income Suite Additions in Mississauga & GTA

Our basement and income suite building services are designed to transform underutilized spaces into functional, comfortable, and legally compliant living units. Serving homeowners across Mississauga, Toronto, Oakville, Vaughan, Brampton, Caledon, and the GTA, we manage every step of the process, including design planning, permits, structural work, and complete construction. Our goal is to create safe and well-designed basement suites that meet local building codes and provide long-term value.

We focus on building suites that are both practical and inviting, ensuring proper layouts, soundproofing, insulation, and high-quality finishes. Whether you are in Richmond Hill, Markham, or established neighbourhoods like Lorne Park and Port Credit, our team delivers tailored solutions that maximize space and functionality. Each basement suite is carefully crafted to enhance your property while offering a comfortable and independent living environment.

Other Services

Custom Home Builds

Project Consultant

House Renovation

Tiling & Paintings

Laminate Flooring

Get A Free Quote

Exceptional secondary suites are built through clear communication, thoughtful planning, and disciplined execution. If you’re considering a basement or income suite and want clarity around feasibility, approvals, and next steps, we invite you to begin with a consultation.

Solutions & Benefits

Our process is designed to eliminate risk and uncertainty when creating a legal secondary unit. We focus on early feasibility, clear scope definition, and disciplined execution—so your investment is protected and approvals are secured without delays.

Working Process

How we work for our customer

Our income suite construction services help homeowners across Mississauga, Toronto, Oakville, Vaughan, Brampton, Caledon, and the GTA create additional income while increasing property value. Every suite is designed with attention to detail, ensuring safety, compliance, and long-term performance.

We have a track record of delivering significant extension and expansion projects for buildings as diverse as schools, leisure centres, churches, and industrial units – providing much needed space and new facilities for our clients. We are used to working in close proximity to occupied buildings.

Basement & Income Suites