19 Best ADU Builders in Honolulu, Hawaii

We specialize in building accessory dwelling units throughout Honolulu, helping homeowners add valuable living space to their properties with expert planning and construction. Our team handles every phase of your ADU project, from design consultation through final completion.

For four generations, the family-owned and operated Atlas Construction has been building Hawaii homes from the ground up. In addition to new constructions, the firm also specializes in remodeling and building multi-generational homes for growing families.

Transform your unused garage into functional living space with expert garage-to-living-space conversions in Honolulu. We specialize in converting garages into bedrooms, offices, and entertainment areas while ensuring compliance with local building codes and climate considerations.

Transform your Honolulu garage into a functional living space with expert conversion services tailored to your home's needs and local building requirements. Our specialized team handles every aspect of garage-to-living-space conversions, from design and permits to construction and finishing touches.

DJ’s Construction Inc. is a full-service construction company offering renovations, home additions, and ADUs, new home construction, as well as kitchen, bath, and deck installation services to Honolulu and its surrounding areas.

Experienced team with 25+ years of combined experience including general contractors, skilled tradesman, in house architect, and an estimator. All the professionals you need to plan and build your ADU in Hawaii.

Graham Builders is Oahu’s design+build leader in residential custom homes, specializing in multigenerational, extended-family, aging-in-place and single-family residences. Established in 1990, our local design+build firm is the proud recipient of Hawaii Home+Remodeling Magazine’s 2018 People’s Choice Award for Multigenerational Home Builder.

Specializing in accessory dwelling unit construction throughout Honolulu, this licensed contractor brings expertise in designing and building ADUs that maximize your property's potential while meeting local building codes. Whether you're looking to create rental income, expand your living space, or house extended family, they deliver quality craftsmanship tailored to Hawaii's unique building environment.

Transform your Honolulu garage into functional living space with expert conversion services tailored to Hawaii's unique climate and building codes. Our experienced team specializes in creating beautiful, code-compliant garage-to-living-space conversions that maximize your home's potential.

Hilweh Builders helps Hawaii homeowners with increasing the size and value of their home to fit their changing needs. They offer comprehensive home renovations including additions, ADUs (Accessory Dwelling Units) and garage conversions.

As a design-build firm, HK Construction is a one-stop-shop for all building, design, and remodeling needs. The firm offers personal design and planning services at a lower cost than an architect and provides complete construction services.

Homeworks Construction, Inc. is a full-service design-build firm that specializes in new homes, additions, remodeling, and kitchens and baths. The firm is also very involved in _Habitat for Humanity_ , the non-profit organization that combats homelessness by providing homes for the less fortunate.

Transform your Honolulu garage into functional living space with expert conversion services that maximize your home's potential. From design through completion, we specialize in creating beautiful, code-compliant garage-to-living-space conversions tailored to your lifestyle needs.

We specialize in designing and building accessory dwelling units throughout Honolulu, helping homeowners add rental income or guest accommodates to their properties with expert construction and permitting support. From concept through completion, our team handles every aspect of ADU development tailored to your home and budget.

Transform your Honolulu garage into functional living space with expert conversion services that maximize your home's potential. Our specialized team handles every aspect of garage-to-living-space renovations, from permits and structural work to finishing touches.

Honolulu's trusted specialist in ADU construction, delivering expert planning and build services to help homeowners maximize their property's potential with compliant, quality accessory dwelling units.

Specializing in accessory dwelling unit construction throughout Honolulu, this contractor helps homeowners add functional living spaces to their properties with expert design and quality craftsmanship. From initial planning through final completion, they deliver ADU solutions tailored to Hawaii's unique building requirements and your family's needs.

Premier ADU builder serving Honolulu homeowners seeking to maximize their property value and living space through expertly designed and constructed accessory dwelling units. With specialized expertise in Hawaii's unique building codes and climate considerations, we deliver quality ADU solutions tailored to your home and budget.

Specializing in accessory dwelling unit construction throughout Honolulu, this ADU builder helps homeowners maximize their property potential with expertly designed and built secondary living spaces. From initial planning through final completion, they deliver quality ADU solutions tailored to Hawaii's unique building requirements and residential needs.