Unlock Your Property’s Potential with Professional ADU Design Accessory Dwelling Units (ADUs)—often called in-law suites, backyard cottages, or granny flats—are independent residential units located on the same lot as a primary home. At Buildmark, we specialise in the seamless integration of these versatile spaces, providing a complete design-build solution that handles everything from initial zoning feasibility to final construction. Whether you are seeking a multi-generational living solution or a high-value rental opportunity, we build ADUs that enhance your lifestyle and your property value.

Custom-Built ADUs: From Concept to Completion Adding an ADU is a complex undertaking involving specific setbacks, utility connections, and local zoning ordinances. Our team simplifies this process by providing architectural design, permitting, and high-performance construction under one roof. We focus on maximising every square foot through smart, minimalist design and sustainable building practices. Our ADUs are fully independent living spaces featuring dedicated kitchens, bathrooms, and private entrances, engineered to blend perfectly with your existing home’s aesthetic.