Add a Legal Backyard Suite to Your Ontario Property - Without the Guesswork

FlexoBuild designs, delivers, and installs modern backyard homes so Ontario homeowners can create independent living space with confidence.

1. Free Consult, 2. Property Review, 3. Permits Handled, 4. Build Complete

Free ADU Consultation

Currently accepting Spring and Summer projects. Limited spots available

Add a Legal Backyard Suite to Your Ontario Property - Without the Guesswork

Free ADU Consultation

Currently accepting Spring and Summer projects - ACT NOW,  Limited spots available

Proud Members of the Niagara Home Builders' Associaton

Proud Members of the Ontario Home Builders' Associaton

Permits, zoning guidance, and turnkey construction for compliant backyard homes across Ontario.

Affordable housing has become an essential part of Ontario’s evolving housing landscape, and well-designed ADUs, garden suites, and laneway homes are helping homeowners create attainable living options without the cost, disruption, or long timelines of traditional construction.

At FlexoBuild, we design and build high-quality, Canadian-made affordable homes that deliver modern comfort, long-term durability, and energy efficiency in compact, well-planned backyard footprints.

Whether you’re helping elderly parents downsize into a safe, independent space, creating a private and dignified home for adult children, or adding an attainable housing option to your property, our ADU and prefab home solutions are designed for fast installation and lasting value.

How Modular Homes Fit on Existing Residential Properties

Accessory dwelling units (ADUs) allow homeowners, municipalities, and communities to add much-needed housing without changing neighbourhood character. Modular ADUs can be installed quickly on existing lots, offering a practical solution for multigenerational living, affordable housing, or transitional housing needs.

  • Can I add an ADU to my property?

    Most Ontario properties in urban and suburban areas qualify under current zoning rules. A free consultation will confirm your lot eligibility within 24 hours.

  • How do I start the ADU process?

    The first step is a no-obligation property review.FlexoBuild handles permits, zoning, and construction coordination from start tofinish.

  • What ADU models are available?

    FlexoBuild offers threemain configurations: detached backyard suites, garden suites, andincome-generating laneway homes. View all models here.

Free ADU Consultation

Example of an accessory dwelling unit (ADU) located in the backyard of an existing single-family home. ADUs provide independent living while maintaining privacy, neighbourhood character, and efficient land use.

Flexible housing for families and rental income

FlexoBuild ADUs and backyard homes are designed to support multigenerational living, rental income, and flexible housing needs across Ontario.

Full-size detached backyard homes give families an affordable alternative to traditional housing, offering modern, well-designed space for loved ones. As both affordable homes and ADUs, they support multigenerational living, whether helping parents age in place or giving young families a realistic way to begin their housing journey.
Add comfort and versatility to your property with a cost effective backyard home or ADU. Ideal for welcoming guests, building a personal retreat, or enjoying additional living space without the cost of a full home addition.
Unlock attainable income opportunities with a FlexoBuild backyard home. These modern, fully independent living spaces are ideal for long-term rental, multigenerational living, or giving family members a private place of their own.

Ready To Start Your FlexoBuild Journey?

Redefining Living

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Frequently Asked Questions (FAQ)

What is an ADU, and why are more homeowners considering one?

An ADU is a self-contained residential unit built on the same property as a primary residence. It can be used by family, friends, or as additional personal space without the cost of constructing a full second home. In Ontario, many homeowners now consider a prefab ADU a practical solution for providing housing more efficiently and with less disruption. A well-designed prefab ADU can also make the entire process seem much more manageable.

How do I know if my property is suitable for an ADU?

That usually depends on local bylaws, setbacks, lot size, and access to services. One of the most effective ways to determine what can be done before proceeding is a thorough review of the property. Working with experienced ADU builders in Ontario can help you understand those details early in the process. Site suitability is always a good place to start when comparing options of a prefab ADU in Canada.

How long does it usually take to build and install an ADU?

The precise schedule depends on permits, site preparation, and final finishing. That said, prefab construction can be quicker than conventional building techniques, which is why a prefab ADU in Ontario is considered by many families when time and convenience are important. Some homeowners who search for ADU homes for sale are really looking for a solution that is quicker, more predictable, and easier to plan around.

Can an ADU be used for family living or rental income?

Yes, it is one of the primary reasons people prefer this kind of housing. Depending on local regulations, an ADU can be used by aging parents, adult children, guests, or for long-term rental. A carefully planned ADU prefab will provide homeowners with greater flexibility without making living spaces public and uncomfortable. That flexibility is a major part of the appeal for many buyers looking for a prefab ADU in Canada.

Are there any financial support programs or ADU grants in Ontario?

Programs may evolve, and it is always a good idea to review existing provincial and municipal programs before finalizing decisions. ADU grants in Ontario are a question many homeowners ask during the budgeting process. Trusted ADU builders in Ontario can also guide you in the right direction during the planning process. Some buyers who research ADU homes for sale also compare financing and incentive packages before deciding on the best course of action.