At R. Clary Builders, we know that ADUs can be a necessary home modification process, and are available to provide you with all necessary support during the construction process. Even if you do not have a pressing need for a home extension, Kailua accessory dwelling units can have several advantages.
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Solid Built Construction, Inc. is a licensed Honolulu contractor serving Oahu since 2007. Based in Hawaii Kai, they offer custom homes, ADU construction, remodels, additions, and renovations across Kahala, Kailua, and Honolulu.
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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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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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General Contractors Oahu offers home additions & ADU construction across Oahu, Hawaii. Services include bedroom, bathroom, second-story additions & granny flats. Licensed, insured & bonded with a 1-year labor warranty. Free estimates available.
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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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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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Affordable Portable Housing Hawaii is a design-build company specializing in shipping container homes, offices, and structures. They offer drafting, permits, and full project development with financing options available.
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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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Homeowners Design Center in Honolulu, Hawaii, offers ADU design, kitchen & bathroom remodeling, and interior finish products. Family-owned with 40+ years of experience, they serve residential and commercial clients with custom, quality-driven solutions.
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From Ohanas (ADU) to luxury custom houses, we pride ourselves in offering uncompromising results and unquestionable ethics.
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Homeworks Construction Inc. is a licensed Oahu contractor with 30 years of experience. Services include custom homes, remodeling, additions, kitchens, bathrooms, lanais, and pools. Their design-build model ensures on-budget, on-schedule results with warranties.
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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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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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Paradise Tiny Homes builds custom luxury tiny homes on wheels (ATUs) in Hawaii. Hand-crafted with local materials, these turn-key units offer sustainable, flexible living without land purchase or permits. Ideal for recreational use across Hawaii's islands.
read moreHonolulu, Hawaii presents a one-of-a-kind environment for ADU (Accessory Dwelling Unit) construction. As one of the most densely populated cities in the United States situated on the island of Oahu, Honolulu faces significant housing shortages driven by limited land availability and high property values. To address this, the City and County of Honolulu has actively encouraged ADU development as a practical solution to expand affordable housing options. Working with experienced ADU contractors in Honolulu is essential to successfully navigate the city's specific zoning laws, permitting processes, and construction requirements.
The City and County of Honolulu has established clear guidelines for ADU construction under its Land Use Ordinance. Homeowners in residential zoned areas (R-zones) are generally permitted to build one ADU per lot. Key regulations that your ADU contractor must be familiar with include:
Hiring a licensed ADU contractor in Honolulu who understands local building codes is critical. Hawaii's construction environment comes with unique challenges, including high humidity, salt air corrosion, and the threat of tropical storms. Experienced local contractors know how to select materials and construction methods that withstand these island-specific conditions. Additionally, Honolulu's Department of Planning and Permitting (DPP) oversees all building permits, and navigating this process efficiently requires local expertise to avoid costly delays.
The permitting process for ADUs in Honolulu involves several steps that a qualified contractor will manage on your behalf:
Given Honolulu's exceptionally high rental market, adding an ADU to your property can generate significant rental income while increasing overall property value. Whether you're considering a detached backyard cottage, a garage conversion, or an attached suite, working with a skilled Honolulu ADU contractor ensures your project meets all local requirements while delivering a high-quality, durable living space suited to Hawaii's tropical climate.