Plan and build the right ADU for your property.

The honest answer starts with the property, not a preset plan. We look at the lot, access, existing structures, utility questions, privacy, parking, jurisdiction, and how you want to use the space before recommending a detached ADU, attached ADU, garage conversion, JADU, or a different path.

We handle ADU property evaluations, ADU design and engineering coordination, permit support, plan-check coordination, detached ADUs, attached ADUs, garage conversion ADUs, Junior ADUs, construction, finish planning, and final handover. The goal is one accountable process instead of asking the homeowner to manage separate designers, permit runners, and builders.

We service Los Angeles and surrounding areas including West Adams, Pico-Robertson, Culver City, Burbank, Sherman Oaks, Encino, Venice, Torrance, San Pedro, and Woodland Hills. View all service areas.

Yes. ADU Powerhouse is a licensed and insured Los Angeles design-build team focused on ADUs. Our process emphasizes clear communication, connected handoffs, realistic planning, and a finished space that works for the homeowner.

Yes. Our process is built to keep evaluation, custom design, engineering coordination, permitting, construction, inspection, and handover connected. That matters because many ADU problems come from handoffs: a plan that does not match the site, a permit path that was not considered early enough, or a construction scope that was priced around different assumptions.

Yes. Permits are part of the process, not an afterthought. We coordinate submittals, plan-check responses, and approval steps while staying mindful that City of Los Angeles, LA County, and nearby cities can have different review paths. We confirm the governing authority for the property before treating any rule as final.

Yes. Garage conversions are one of the highest-intent ADU decisions homeowners research because they can be efficient, but they are not automatically the best answer. We review the existing structure, slab, utilities, access, ceiling height, privacy, layout, and approval path before recommending a conversion over a new detached ADU.

A useful timeline depends on the property and the approval path. The work usually moves through evaluation, design and engineering, permit review, construction, inspections, and handover. During the first conversation we focus on the decisions that actually affect timing: site conditions, scope, utilities, finish level, and jurisdiction.

There is no responsible one-line number without seeing the property. Cost can move based on size, site access, utilities, foundation work, structural upgrades, design choices, finish level, and permit requirements. Our evaluation is meant to make the scope clearer before you compare bids that may not include the same work.

Often, yes, but the right design depends on the goal. A rental-minded ADU needs durable finishes, privacy, access, and layout decisions that may differ from a space for parents, adult children, guests, or work. We plan around long-term flexibility instead of designing a generic backyard box.

We review the address, your goals, and where you are in the decision. Then we follow up to talk through the property, likely project type, big feasibility questions, and the practical next step. You should leave that conversation with more clarity, not just a sales pitch.