Two-story detached ADUs are an option some Pasadena homeowners consider, particularly on smaller lots where building up rather than out allows for more living space without using as much of the yard. A two-story design introduces additional considerations, including how the structure's height relates to neighboring properties and any height restrictions that may apply, as well as practical factors like whether stairs are appropriate for the intended occupants, particularly if the unit is intended for aging family members. Construction of a two-story unit is generally more involved than a single-story unit of similar square footage, which can affect both cost and timeline. ADU Builders Pasadena discusses these tradeoffs with homeowners who are weighing a single-story versus two-story design for their detached ADU. Contact Details: Address: 3486 E Foothill Blvd, Pasadena, CA 91107, USA Phone: (626) 635-3080