Detached and attached accessory dwelling units built to current California code. Extra income, extra space, extra property value.
Accessory dwelling units are one of the smartest investments Bay Area homeowners can make right now. California has passed a series of laws over the past several years that make it easier than ever to add an ADU to your property. Whether you want rental income, a space for family, or a home office with real separation from the main house, an ADU checks all the boxes.
We build both detached and attached ADUs across the Bay Area. Detached units are standalone structures in your backyard. Attached units are built onto your existing home or converted from existing space like a garage. Both options have their advantages, and we will help you figure out which one makes the most sense for your property.
The ADU process in the Bay Area involves design, engineering, permits, and construction. We handle all of it. From the initial site assessment to the final certificate of occupancy, you have one point of contact and one team managing every step.
When you hire Magana's for your adu construction project, here is what you get:
ADU construction in the Bay Area typically takes 6 to 12 months from permit submission to completion. The permit phase alone can take 2 to 4 months depending on the city. Construction of a detached ADU usually runs 4 to 6 months once permits are approved. Attached ADUs and garage conversions can sometimes be completed in 3 to 5 months.
Timelines vary based on permit processing times (which differ by city in the Bay Area), project complexity, material availability, and scope changes. We will give you a realistic timeline upfront and keep you updated throughout the process.
ADUs require a building permit in every Bay Area city. The good news is that California law (AB 68, SB 13, and subsequent legislation) has streamlined the process significantly. Cities are required to approve or deny ADU applications within 60 days. We prepare complete permit packages that meet all local requirements to minimize delays and revision requests.
Even with California's relaxed ADU laws, there are still setback requirements, height limits, and lot coverage rules. We check all of this before you spend money on design.
Connecting water, sewer, electrical, and gas to a detached ADU can be a significant cost. We include this in our estimates upfront so there are no surprises.
If you are building an ADU for rental income, research the local rental market first. Unit size, finishes, and layout all affect what you can charge. We can help you design for maximum rental value.
No pressure, no obligation. Just a conversation about what you want to build and how we can help.
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