Orohaus is a residential consulting firm that focuses on design and structural engineering.

Established in 2015.

The business was imagined in January 2014 by Martin E. Ruvalcaba, P.E. to provide residential design services and structural engineering all in house. During the course of that year the business was officially incorporated in February 2015 and began focusing on the planning, design, and engineering services of for residential home projects.

Orohaus has been focusing on ADU’s, home additions, garages, patio covers, remodels, kitchens, load bearing wall removals, retaining walls, and second story additions.

In 2015 Orohaus Design performed its first retaining wall design-build project in San Pedro with his father Martin Sr., a licensed contractor and owner of Pacificland Constructors. Many other retaining walls and freestanding masonry fences were built from 2015 to 2018.

In 2016 Orohaus Design also performed its first home addition design-build project for a home addition in Lakewood with Pacificland Constructors.

In early 2017 Orohaus opened up its first office location at 4182 North Viking Way Suite 215 in Long Beach at the Lakewood Village. Shifting the firms focus strictly to design and engineering, Orohaus Design has performed a total of 273 residential projects from 2017 till October 2023.

We invite you to contact us to find out how we can be of service to you and help design your dream project!

The Crew

Meet the team at Orohaus

Our Projects

Orohaus Design has designed & engineered 327 residential projects from June 2014 to October 2023.


Orohaus Design provides a wide array of design services for residential homes