ADU Design & Construction
More Living Space. More Possibilities. Built Right in Your Backyard.
More Living Space. More Possibilities. Built Right in Your Backyard.
An Accessory Dwelling Unit (ADU) is one of the smartest ways to add usable, independent living space to your property — without buying a new home. Whether you’re planning a rental unit, a guest house, or a private suite for family, Mega Development will help you design and build a fully functional ADU that fits your needs, your lot, and your long-term goals.
We handle the entire process — from layout and permitting to construction and final inspection — with experience, transparency, and a deep understanding of Los Angeles zoning and building codes.
What Is an ADU?
An ADU (Accessory Dwelling Unit) is a fully self-contained living space built on the same lot as your primary home. ADUs can be:
- Detached units (standalone structures)
- Garage conversions or above-garage apartments
- Attached expansions with separate entrances
- Interior conversions (e.g. basement or side wing)
ADUs can include a kitchen, bathroom, bedroom, and living area — making them ideal for multigenerational families, rental income, home offices, or guest accommodations.
Our ADU Design & Build Process
Site Evaluation & Feasibility
We assess your property’s layout, zoning requirements, access points, and utility connections and give you a realistic plan for what type of ADU can be built.
Design & Layout Planning
Our in-house team creates a custom layout that works with your lot and goals.
✦ Want to see it first? 3D design options are available to help you visualize your ADU before
we build.
Permitting & Compliance
We prepare architectural plans and handle the full permit process, including Title 24 energy reports, structural engineering, and city submittals — saving you time and stress.
Groundwork & Utility Pre
We coordinate all trenching, connections, and groundwork to ensure your ADU has water, power, and proper drainage — done right and up to code.
Construction
Our licensed team builds the ADU from the ground up: framing, insulation, roofing, plumbing, electrical, HVAC, windows, flooring, kitchen and bath installation — all handled in-house for a smooth, efficient build.
Final Touches & Walkthrough
Once construction is complete, we handle punch list items, inspections, and cleanup — and walk you through the space to make sure everything is move-in ready.
Why Build an ADU with Mega Development?
- Complete design + build team under one roof
- In-depth experience with local ADU codes and permit processes
- Custom layouts designed around your needs and space
- Experienced crews and project managers — no outsourcing
- Transparent pricing and timelines you can trust
As with all of our outdoor structures:
Common Uses for ADUs
- Long-term rental income
- Housing for aging parents or adult children
- Home office or creative studio
- Private guest suite or vacation space
- Future resale value and investment growth
Whether you need more room or a new income stream, an ADU adds real flexibility to your property — without the hassle of moving.
Ready to Get Started on Your ADU?
We’ll help you make the most of your lot — with a process that’s simple, efficient, and fully customized to you.