What is a Detached ADU?

In Massachusetts, a detached ADU, or Accessory Dwelling Unit, is a second home of no more than 900sf built on the same lot as your primary residence.

This could be an entirely new structure in your backyard or a converted detached garage "ADU". The detached unit is fully independent, with its own kitchen, bathroom, and entrance.

These are also called backyard cottages, guest houses, or in-law suites. No matter what you call them, they serve the same purpose. ore space. More flexibility. More long-term value.

Why Worcester Homeowners Are Building Detached ADUs

• Earn rental income
• Make room for aging parents or family
• Boost resale value
• Add living space without touching the main house

VIACAD, LLC designs detached ADU plans that meet code and match the vision you have for your property.

Our ADU Design Services:

• Detached backyard units
• Converted detached garage ADUs
• Guest houses and small rentals
• In-law suites with private entrances
• One-bedroom or studio-style layouts

Here is how we make it happen:

1. You reach out with your address and project goals
2. We research zoning, setbacks, and the detached ADU requirements specific to your property in Worcester
3. We meet in person to walk the property and better understand your vision
4. We design plans that align with code and your goals
5. You review and approve the layout before we finalize
6. We deliver a set of plans that gets your project rolling

Every project is unique, but we make the process simple. VIACAD, LLC has over 18 years of local experience, across Massachusetts, designing residential & commercial plans that move from concept to construction.