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.
read more
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.
read more
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.
read more
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.
read more
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.
read more
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.
read more
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.
read more
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.
read more
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.
read more
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.
read more
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.
read more
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.
read more
From Ohanas (ADU) to luxury custom houses, we pride ourselves in offering uncompromising results and unquestionable ethics.
read more
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.
read more
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.
read moreKapolei, often referred to as Oahu's "Second City," is one of Hawaii's fastest-growing urban centers, located on the western coast of Oahu. As the city continues to expand with new residential developments, master-planned communities, and a growing population, the demand for Accessory Dwelling Units (ADUs) has surged significantly. Experienced ADU contractors in Kapolei understand the unique landscape of this planned city, where newer subdivisions and HOA-governed communities require careful navigation of both state and county regulations before breaking ground.
ADU construction in Kapolei falls under the jurisdiction of the City and County of Honolulu's Department of Planning and Permitting (DPP). Hawaii has made significant strides in encouraging ADU development to address the state's well-documented housing shortage. Key regulations that qualified ADU contractors must follow in Kapolei include:
Hiring a locally experienced ADU contractor in Kapolei is essential for a smooth and compliant build. Local contractors are familiar with the specific soil conditions, flood zone designations, and hurricane-resistant building codes that apply throughout West Oahu. Kapolei's proximity to the coastline means that wind and moisture resistance are critical factors in material selection and construction methods. Additionally, many Kapolei neighborhoods are part of master-planned communities with their own Homeowners Association (HOA) guidelines, which may impose additional design and aesthetic requirements beyond standard county permits.
Professional ADU contractors in Kapolei typically specialize in several types of accessory dwelling units suited to the area's residential landscape:
With Kapolei's real estate values continuing to rise and rental demand remaining strong across West Oahu, building an ADU is a smart investment. Working with a licensed and insured ADU contractor in Kapolei, Hawaii ensures your project meets all DPP requirements, HOA standards, and Hawaii's strict building codes — delivering long-term value and peace of mind.