Lot size and width in Royal Oak, MI

A lot in One-Family Residential needs at least 6,000 square feet, with 50 feet of width on an interior lot, 60 feet on a corner lot, and 100 feet of depth (§ 770-34D).

A new house also has a minimum floor area. It is set by the smallest adjacent single-family dwelling, counting side and front neighbors but not the rear, and it never falls below 1,000 square feet (§ 770-23A). That is a parcel-specific calculation, so confirm the figure with the city before you design.

In the One-Family districts, a new single-family lot must also satisfy the block-area lot-comparison rule in § 770-21B(2): the resulting lot must equal or exceed the width, depth, and area of the majority of developed lots in the comparison area. For interior lots on a defined block, that area is the same block; the ordinance defines different comparison areas for blocks without clear boundaries and for corner lots. One single-family dwelling per lot (§ 770-21E(2)).

A lot in One-Family Large Lot Residential needs at least 13,000 square feet, with 70 feet of width and 100 feet of depth (§ 770-35D).

A new house has a minimum floor area set by the smallest adjacent single-family dwelling, counting side and front neighbors but not the rear, and never below 1,300 square feet in this district (§ 770-23A). That is a parcel-specific calculation, so confirm the figure with the city before you design.

In the One-Family districts, a new single-family lot must also satisfy the block-area lot-comparison rule in § 770-21B(2): the resulting lot must equal or exceed the width, depth, and area of the majority of developed lots in the comparison area. For interior lots on a defined block, that area is the same block; the ordinance defines different comparison areas for blocks without clear boundaries and for corner lots. One single-family dwelling per lot (§ 770-21E(2)).

A lot in Two-Family Residential needs at least 9,000 square feet, with 50 feet of width on an interior lot, 60 feet on a corner lot, and 100 feet of depth (§ 770-36D).

Minimum floor area per unit is 80 percent of the one-family figure derived from the adjacent homes, and never below 800 square feet per unit (§ 770-23B). The adjacent-home calculation is parcel-specific, so confirm the figure with the city before you design.

Lot area is set per unit: 9,000 square feet for the first two units, plus 3,000 square feet for each additional unit (§ 770-37).