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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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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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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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.
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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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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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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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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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UCG Hawaii offers home additions across Oahu, Maui, Big Island & Kauai. Services include ADUs, granny flats & in-law suites. They handle permits, design & site challenges, with a free consultation to start.
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From Ohanas (ADU) to luxury custom houses, we pride ourselves in offering uncompromising results and unquestionable ethics.
read moreHawaii is one of the most expensive housing markets in the entire United States, with median home prices consistently ranking among the highest in the nation. The state's geographic isolation, limited land availability, and high cost of living make Accessory Dwelling Units (ADUs) an increasingly popular solution for homeowners looking to maximize their property's value or generate rental income. In response to the housing crisis, Hawaii has actively worked to streamline ADU regulations, making it easier than ever to work with qualified ADU contractors in Hawaii to build these secondary units.
Each county in Hawaii — Honolulu, Maui, Hawaii County, and Kauai — has its own set of zoning rules and permitting requirements for ADUs. In Honolulu, for example, the city allows ADUs on lots zoned for single-family residential use, provided the lot meets minimum size requirements. State law under Hawaii Revised Statutes (HRS) Chapter 46 has pushed counties to ease restrictions and encourage ADU development. Key regulations that experienced ADU contractors must navigate include:
Working with a licensed ADU contractor in Hawaii is essential due to the complexity of local permitting processes. Contractors must be licensed through the Hawaii Department of Commerce and Consumer Affairs (DCCA), specifically under the Contractors License Board. Homeowners should always verify that their contractor holds a valid General Engineering or General Building contractor license before beginning any project. Experienced local contractors will also be familiar with Hawaii-specific construction challenges, including:
Despite the challenges, investing in an ADU in Hawaii offers significant financial rewards. With the tourism industry driving strong demand for short-term rentals and a persistent housing shortage affecting long-term rental markets, a well-built ADU can generate substantial monthly income. ADU contractors in Hawaii with local expertise can help homeowners design units that comply with county regulations while maximizing livable space and energy efficiency. Features like solar panel integration, rainwater catchment systems, and natural ventilation design are commonly incorporated to reduce utility costs and align with Hawaii's sustainability goals.
When searching for the best ADU builder in Hawaii, prioritize contractors with proven experience in your specific county, a strong portfolio of completed ADU projects, and positive client reviews. Request detailed bids, verify licensing through the DCCA, and ensure your contractor pulls all necessary permits. A knowledgeable local contractor will guide you through every step — from initial design and permitting to final inspection — ensuring your ADU project is completed on time, within budget, and fully compliant with Hawaii's unique building requirements.