Home Additions and ADUs

Yes. ADU and granny flat construction is a growing part of what we do. We handle everything from the design and permit process through foundation, framing, all trades, and final finishes, so you end up with a complete, permitted unit rather than a partial build you have to finish yourself.

Both. We build room additions, primary suite additions, second story additions, and full detached ADUs. A room addition uses the existing foundation and roof where possible and ties into the current house. A detached ADU is its own building from the ground up.

Six to fourteen months is a realistic window for a residential addition or ADU, from first design meeting to final inspection. The permit and plan check window is often the longest single phase, and it varies by city and by how many correction cycles the plans go through.

Twelve to eighteen months is common for a fully detached ADU, again with plan check as the biggest variable. Some cities have ADU pre approved plans that speed up the process meaningfully, and we help you decide whether one fits your site.

Yes. We handle the permit application, plan check submittal, corrections back and forth with the city, and inspection scheduling. That is the whole reason you hire a licensed general contractor rather than piecing the project together yourself.

For most additions and ADUs, yes, an architect or a design professional needs to stamp the plans. We work with architects you already have and can recommend ones we have worked with before if you need. Bringing us in during the design phase saves money and time because we can flag constructability issues while they are still cheap to fix on paper.

Usually yes. We seal the addition from the existing house during framing and rough in so the interior stays livable, and we plan the utility tie in phases so you are not without water or power. There are always a few days where something is off, and we schedule those in advance so nothing is a surprise.

Yes. A detached ADU is legally a separate dwelling unit. It gets its own address, its own water and power connections in most cases, and its own inspections. Some cities allow shared utility with a separate meter. We walk you through what your city allows before we design the plan.

Cost is driven by size, foundation and framing complexity, whether the addition adds a second story, the finish level, and how much site work is involved. We price against a specific written scope after the design is far enough along to be real rather than guessed at.

The two biggest risks are plan check delays and hidden conditions when the existing house is opened for the tie in. We manage plan check actively and we stop and show you anything unexpected in the tie in before we cover it back up, so surprises get priced up front.