ADU Construction Services by Coulson Hawaii
Coulson Hawaii offers a full-service approach to accessory dwelling unit (ADU) construction on Oahu and throughout Hawaii. For homeowners looking to offset the cost of living or accommodate a growing family, building an ADU can be a practical solution — and with current incentives from the City and County, the timing is worth considering.
As an experienced ADU contractor, Coulson Hawaii manages the entire process from beginning to end. Their turnkey service covers every stage, including:
- Planning and design
- Working drawings
- Permit processing
- Construction through to finishing touches
This end-to-end approach means homeowners are guided through each step without having to coordinate multiple contractors or navigate the permitting process on their own.
Additions for Growing Families
With the rising cost of homes across Hawaii, many families are choosing to expand their existing properties rather than purchase new ones. Coulson Hawaii specializes in second story additions, which can be a practical way to create separate living spaces within the same home.
A common configuration they work with involves converting or building a second floor into a master suite with a full bathroom — allowing parents or grandparents to have their own space while the lower level remains the primary family home. This type of project allows multiple generations to share a property while maintaining a degree of independence.
In-Law Suites and Accessible Living Spaces
Another service Coulson Hawaii provides is the construction of in-law suite spaces on the ground floor. These spaces are typically designed to include a kitchenette, bathroom, and wheelchair accessible features — making them suitable for aging family members who need practical accommodations while remaining close to family.
Whether the goal is a detached ADU, a granny flat, or an attached in-law addition, Coulson Hawaii works with homeowners to understand their specific needs and bring those plans to completion. Their focus is on keeping families together — what locals refer to as keeping the Ohana close — while making the most of existing property.
Coulson Hawaii offers a free initial consultation for homeowners interested in exploring their ADU or addition options.