◆ About Ethos Building Group
Licensed, bonded, and insured.
◆ Company Overview
A licensed contractor
you can hold to account.
Ethos Building Group LLC is a licensed California general contractor specializing in residential remodels and ADU construction throughout the South Bay and Los Angeles County. We deliver disciplined project management, precise coordination, and high-quality craftsmanship built for long-term durability and real property value. Licensed, bonded, and insured, we approach every project with structure, accountability, and clear communication from initial planning through final completion.
◆ Our Approach
Successful construction begins long before materials arrive on site.
Every project starts with a clearly defined scope of work and realistic expectations. We take the time to understand the goals of the homeowner, evaluate the property, and establish a plan that minimizes surprises and avoids unnecessary delays.
From there, we coordinate trades with intention, maintain organized scheduling, and enforce clean jobsite standards throughout the duration of the project. Communication remains consistent from start to finish so clients always understand progress, timelines, and next steps.
Our focus is not simply completing a project. It is completing it properly — with durability, accountability, and long-term value in mind.
◈Structured scopes
Every project starts with a clearly defined scope of work before construction begins.
◈Clear communication
Clients always understand progress, timelines, and next steps. No surprises.
◈Organized trade coordination
We coordinate trades with intention and maintain organized scheduling throughout the project.
◈Clean jobsite standards
We enforce clean jobsite standards for the full duration of every project.
◈Realistic pricing
Professional coordination and quality execution without inflated pricing or shortcuts.
◈Long-term durability
We build for durability and long-term value — not just to get through the punch list.
◆ Founder
Meet Leonid Riley
Ethos Building Group was founded by Leonid Riley with a clear objective: bring structure, discipline, and accountability to residential construction. With hands-on experience in remodeling, structural framing, and project coordination, Leonid approaches every project with precision and responsibility.
He believes construction should be organized, transparent, and built on clearly defined standards rather than guesswork. From scope development to final walkthrough, Leonid prioritizes planning, communication, and quality control to ensure each project is executed properly.
Leonid remains actively involved in project oversight to maintain high standards and ensure clients receive a professional, well-managed experience from start to finish.
Licensed · Bonded · Insured — Verify CSLB #1152661 ↗
Leonid Riley
Founder · Ethos Building Group
◆ License & Compliance
Licensed, bonded, and insured.
Ethos Building Group LLC is a licensed California general contractor serving the South Bay and greater Los Angeles County. We maintain active licensing, bonding, and insurance to ensure every project meets California regulatory standards and provides protection for our clients. Compliance and accountability are foundational to how we operate.
◆ Service Area
South Bay & Los Angeles County
Ethos Building Group LLC proudly serves homeowners throughout the South Bay and greater Los Angeles County. We focus on residential remodels and ADU construction across the region, delivering structured project management and reliable execution.
◆ Get Started
Ready to move forward?
If you're ready to move forward with a remodel or ADU project, schedule a consultation today. We'll review your goals, outline the scope, and provide a clear path forward.