Detached ADU in Hawaii
Coastal View Construction LLC
348 Luawai Street, Lahaina, HI 96761
Thinking about adding more living space to your property, but not sure whether to go with an ADU or an Ohana unit? Wondering which one gives you more freedom, more value, or fits your family setup better? In this post, you’ll learn what separates an ADU from an Ohana unit, how each one works, and what legal or design details you need to watch out for.
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Coulson Hawaii
P.O. Box 5319, Kaneohe, HI 96744
Coulson Hawaii offers full-service ADU construction on Oahu, managing design, permits & build. Specializing in second-story additions, in-law suites & wheelchair-accessible granny flats to help Hawaii families maximize their property.
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Hilweh Builders LLC
45-550 Mahinui Rd., Kaneohe, HI 96744
Hilweh Builders LLC is an Oahu, Hawaii general contractor specializing in ADUs, home additions, and design-build remodeling. Led by Chad Hilweh, they offer integrated architect collaboration, on-budget project management, and Hawaii-specific residential construction expertise.
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Maui Eco Built
185 Alea Place, Makawao, HI 96768
Maui Eco Built offers prefab & custom ADUs, granny flats, and homes on Maui. Panelized construction cuts build time. Structures range from permit-exempt under 200 sq ft to 3,000 sq ft homes. Design, permits & site planning available.
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Elevate Builders Hawaii
1003 Bishop Street, Honolulu, HI 96813
Elevate Builders Hawaii offers home building, renovation, and ADU construction services, including detached ADUs, garage conversions, and in-law suites. Every home includes a 1-Year Limited Warranty for added peace of mind.
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HPM Hawaii
380 Kanoelehua Avenue, Hilo, HI 96720
HPM Hawaii offers ADU models statewide, from 416 to 1,672 sq. ft., with pre-approved options for Hawaiʻi Island. They guide homeowners through design, permitting, and construction while navigating each county's unique ADU regulations.
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Lapis Hawaii
1188 Bishop Street, Honolulu, HI 96813
In the heart of Honolulu, a quiet change in residential architecture is happening with Accessory Dwelling Units (ADUs). These well-designed living spaces are more than just extra square footage—they represent the spirit of ‘ohana and provide a practical solution to Hawaii’s housing problems.
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Ward Design Center
91-857 Pohakupuna Road, Kapolei, HI 96706
Ward Design Center is a design-build firm specializing in ADUs, garage conversions, granny flats, JADUs, and in-law suites. They guide homeowners through planning, design, permitting, and construction for functional, custom living spaces.
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DJ's Construction, Inc.
Honolulu, HI 96820
DJ's Construction, Inc. is a Honolulu-based ADU contractor serving Oahu since 2006. They offer full-service accessory dwelling unit construction, including design, permits, and finishing. Recognized among Honolulu's top ADU builders.
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H-1 Construction LLC
868 Puuomao Street, Honolulu, HI 96825
We are H-1 Construction, one of the few local, family-owned, and operated home builders in Honolulu, Hawaii. We take pride in our work and the relationships we have fostered over the years.
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Woodrose Construction
7116 Hawaii Kai Dr. #59, Honolulu, HI 96825
From Ohanas (ADU) to luxury custom houses, we pride ourselves in offering uncompromising results and unquestionable ethics.
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Canaan LLC
1122 Makepono Street, Unit 300, Honolulu, HI 96819
Small Cottages Hawaii, a division of Canaan Builders LLC founded in 1978, specializes in permitted ADU construction across Oahu. Offering custom and pre-designed backyard cottages compliant with Honolulu's 2015 ADU Ordinance, they provide quality housing solutions adding property value.
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Tall Builders LLC
31 North Pauahi Street, Honolulu, HI 96817
Tall Builders is Oahu's trusted home addition contractor with 20+ years of experience. Services include ADUs, garage conversions, second story additions, lanai extensions & sunrooms. Licensed, insured & ROH-compliant.
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Honua Builders
2439 South Kihei Road, Kihei, HI 96753
Honua Builders is a Kihei, Maui-based construction firm offering luxury custom homes, remodels, additions, and ADU construction across Hawai'i. Led by two licensed B General Contractors, they deliver hands-on, high-quality residential and commercial builds.
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All Phase Construction LLC
3014 Nihi Street, Honolulu, HI 96819
All Phase Construction LLC is a Honolulu-based contractor serving Oahu, Maui, Big Island & Kauai since 2013. Specializing in ADU construction, custom homes, additions & concrete work across Hawaii.
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Other cities in Hawaii
What you need to know
Searching for top Detached ADU ADU Contractors in Hawaii? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Detached ADU ADU Contractor in Hawaii ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Detached ADU professionals can guide you through every step.
Hawaii homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Detached ADU ADU Contractors in Hawaii, and get started today.