Accessory Dwelling Units (ADU) in Mason, OH
ADU in Mason? Warren County, its own city, and generous lots. Our team builds accessory dwelling units there on one contract.
Mason, OH · 45040
A backyard home in Mason
Mason (ZIP 45040) is a fast-growing Warren County city north of Cincinnati near Kings Island, with large subdivisions of homes built mostly from the 1990s onward alongside an older town center.
Mason is its own city in Warren County, so both the zoning and the county differ from anything in Hamilton County. Physically the subdivision lots are generous and level with good access, genuinely favorable conditions. The check most often missed here is the subdivision association, whose covenants can restrict what city zoning otherwise allows.
Included in your Mason ADU, plus the work others skip
From footings to framing
Zoning Review First
The price you sign is the price you pay
Bathroom with shower or tub
A proper kitchen, not a kitchenette
Lifetime warranty on our work
Designed in-house, shown in 3D
Utilities run and hooked up
Permits and inspections handled
Hear from our customers before you remodel in Mason
Packages and price ranges
With Bulldog, the typical range is $50K to $230K, and the room’s size, layout and finishes set the final number.
View full pricingFAQ
Common questions from Mason homeowners
Mason’s planning and zoning staff are the first call, with the address and parcel number ready. Ask specifically how the code treats a second dwelling unit on a single-family lot, since the wording for these varies from one code to the next.
The subdivision association. Private covenants can restrict what city zoning permits, and that is a separate check worth making early.
Other common questions about accessory dwelling units (ADU) →
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Start your Mason project
Let’s talk about your Mason project.
A few details are all we need to start. A member of our team will contact you about the work in Mason, and there’s no pressure to commit.
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