Accessory Dwelling Units (ADUs)

Smart, Flexible Living Solutions

Accessory Dwelling Units (ADUs) are one of the fastest-growing trends in residential construction—and for good reason. An ADU is a fully functional secondary living space built on the same property as a primary home, offering flexibility, added value, and long-term income potential.



Also known as granny flats, in-law suites, or backyard homes, ADUs provide a modern solution for homeowners looking to maximize their property.

What Is an ADU?

An Accessory Dwelling Unit is a self-contained residential unit that includes:


  • A kitchen or kitchenette
  • Bathroom
  • Living and sleeping areas
  • A separate entrance


These units can be attached, detached, or converted from existing space such as garages or basements.

Types of ADUs We Build

At ATG Developments Inc, we design and build custom ADUs tailored to your property and goals:


  • Detached ADUs
  • Standalone backyard homes offering full privacy and independence.
  • Attached ADUs
  • Extensions built onto your existing home for seamless integration.
  • Garage & Basement Conversions
  • Transform unused space into functional living areas.
Compact modern kitchen with white cabinets, gas stove, kettle, and breakfast bar by a window

Benefits of Building an ADU

Generate Rental Income

ADUs can create a steady income stream through long-term or short-term rentals.

Multigenerational Living

Keep family close while maintaining privacy and independence.

Increase Property Value

Adding an ADU can significantly boost resale value and market appeal.

Cost-Effective Expansion

ADUs are typically more affordable than building a new home since they utilize existing land and infrastructure.

Small beige house exterior with large window, white fence, and stone skirting by the street

ADU Construction Process

Building an ADU requires careful planning and expert execution. Our process includes:


  1. Site Evaluation & Planning
  2. Design & Permitting
  3. Construction & Project Management
  4. Final Inspection & Completion


Most ADU projects take 8–12 months from design to completion, depending on scope and permitting timelines.

Why Choose ATG Developments Inc for Your ADU Project?

Custom design tailored to your property

Expertise in zoning, permitting, and compliance

High-quality craftsmanship

Transparent timelines and communication

We focus on delivering functional, durable, and high-value ADUs that meet your long-term goals.

Start Your ADU Project Today

Whether you’re looking to create rental income, house family members, or expand your living space, an ADU is a smart investment.


Contact ATG Developments Inc today to schedule a consultation and explore your options.