BIOS Homes: ADU Contractors Serving Connecticut Homeowners
BIOS Homes is a Connecticut-based builder specializing in Accessory Dwelling Units (ADUs) — smaller, self-contained living spaces built on the same lot as a single-family home. With Connecticut's Public Act 21-29 legalizing ADU construction statewide, homeowners now have a clearer path to adding rental income, housing family members, or increasing property value. BIOS Homes works with homeowners through every stage of that process, from design and town approvals to construction and final inspections.
As an experienced ADU builder, BIOS Homes uses modular and panelized construction methods, which allow for faster assembly, flexible layouts, and consistent quality. Their services cover several types of ADUs, each suited to different property configurations and homeowner goals.
Types of ADUs Built by BIOS Homes
Detached ADU
A detached accessory dwelling unit is a fully independent structure on the same property as the main home. BIOS Homes designs and builds detached ADUs with their own entrance, kitchen, bathroom, and living areas. These units can range from compact studios to one- or two-bedroom layouts. They are commonly used for rental income, multi-generational living, or guest accommodations. The team handles design customization, local approvals, and construction from start to finish.
Attached ADU
An attached ADU connects directly to the existing home while maintaining its own distinct living space. This type of unit is often used as an in-law suite, a space for older children, or a rental unit. BIOS Homes designs attached ADUs to match the architecture of the existing home, using modular and panelized construction to deliver energy-efficient, customizable results. Their team manages the full process, including town approvals and finishing work.
Basement ADU
For homeowners with underutilized basement space, BIOS Homes offers basement ADU conversions. These units are built with their own entrance, kitchen, bathroom, and living area, creating a self-contained space within the existing home. Whether the goal is a rental suite, a guest space, or a private area for a family member, BIOS Homes guides clients through planning, permitting, and construction.
Garage Conversion Contractor Services
BIOS Homes also specializes in garage conversions, transforming existing garage space into a functional ADU. A garage conversion can include a private entrance, bathroom, and living area, making it suitable as a rental unit, home office, or guest quarters. Using modular and panelized methods, they aim for efficient timelines and quality finishes while handling all aspects of the project, including design and town approvals.
Guest and Pool Houses
In addition to traditional ADU types, BIOS Homes designs and builds modular guest houses and pool houses. These structures can include a bedroom, bathroom, and kitchenette, and are customizable to fit the style and layout of the surrounding property. They serve as backyard cottages, poolside retreats, or additional living space for visitors.
Understanding Connecticut's ADU Regulations
Connecticut's Public Act 21-29, passed in 2021, requires municipalities to allow ADU construction by right on single-family properties. This removed the need for special permits or zoning variances in most towns, though individual municipalities may still impose their own requirements regarding size, location, and design. Some towns have opted out of the state provision or have developed their own ADU regulations.
Before starting an ADU project, homeowners are encouraged to review local zoning codes, as rules can vary significantly from one town to the next. Towns such as Stamford, Hartford, and New Haven generally support ADU construction, while smaller or more rural municipalities may have more restrictive requirements.
BIOS Homes works with homeowners to navigate these local regulations, helping them understand what is permitted in their specific town and guiding them through the approval process. Key planning considerations include:
- Intended use of the ADU — rental, family housing, or guest space
- Budget and financing options
- Local zoning requirements and setback rules
- Preferred size and layout of the unit
BIOS Homes offers multiple factory-built options as well as custom designs, giving homeowners flexibility in how they approach their ADU project. Their construction approach is designed to minimize disruption to daily life while delivering a finished unit that meets local code requirements and the homeowner's practical needs.