An ADU is a small building with every system a house has: foundation, framing, insulation, kitchenette, bathroom, its own panel or subpanel, and often its own address.
The difference between a smooth ADU and a stalled one is almost always the paperwork and the utility connection, not the framing. We plan both before demolition.
ADU 就是一棟小房子，該有的系統一樣不少：地基、骨架、隔熱、簡易廚房、浴室、獨立電盤或分盤，通常還要有獨立門牌。
ADU 做得順不順，差別幾乎都在文件與水電接續，不在木工。這兩件事我們在拆除前就規劃好。
What we build
Garage conversions into a studio or one-bedroom unit, attached ADUs carved out of existing footprint, JADUs (small units inside the main house with their own entrance and kitchenette), and detached new-build units where the lot allows.
我們做的類型
車庫改套房或一房、從既有空間隔出的附屬 ADU、JADU（主屋內的小單位，需獨立出入口與簡易廚房），以及地塊允許時的獨立新建 ADU。
What drives the cost
Whether the slab and foundation already exist, how far the unit sits from the main panel and sewer, whether the driveway has to be cut, fire separation and egress requirements, and the kitchen and bath package.
費用由什麼決定
地坪與地基是否已存在、離主電盤與污水多遠、車道是否要開挖、防火區劃與逃生開口的要求、廚房與浴室等級。
How long it takes
4–8 weeks of design and city review for a straightforward conversion, then 2–4 months of construction. Detached units take longer because everything is new.
工期
單純的改建約 4–8 週設計與市府審查，之後施工 2–4 個月。獨立新建的 ADU 更久，因為每一項都是新的。
Permits and rules
ADU rules depend on your zoning, lot size and whether the unit is attached — state law has made approvals far more predictable than they used to be, but the details are local. We check your parcel with the city before quoting, so the number you get is for a unit that can actually be approved.
建照與規定
ADU 的規定要看分區、地塊大小與是否附屬 —— 州法讓核准比過去可預期，但細節仍是地方規定。我們在報價前先向市府確認你的地號，確保報的是「真的能核准」的案子。
Questions we get asked
常見問題
Very often yes — it is one of the most common projects we do. It depends on parking replacement rules, setbacks and utility capacity; we check those three before quoting.
A JADU is a smaller unit inside the existing house (up to about 500 sq ft) with its own entrance and a kitchenette; an ADU is a full independent unit, attached or detached, with its own kitchen and bathroom.
It needs its own circuits and usually a subpanel; whether the main service must be upgraded comes out of the load calculation. That is a real cost item, and we price it up front rather than mid-project.
That depends on local rules and on the unit being permitted and signed off — which is exactly why we build it to pass inspection rather than to look finished.
