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 comprises interior lots on both sides of the subject street within the defined block, with the same zoning; the ordinance defines different comparison areas for blocks without clear boundaries and for corner lots. One single-family dwelling per lot (§ 770-21E(2)). Existing nonconforming lots are governed separately by § 770-113; lot splits remain subject to § 770-21B.

A lot in One-Family Large Lot Residential needs at least 13,000 square feet, with 70 feet of interior-lot 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 comprises interior lots on both sides of the subject street within the defined block, with the same zoning; the ordinance defines different comparison areas for blocks without clear boundaries and for corner lots. One single-family dwelling per lot (§ 770-21E(2)). Existing nonconforming lots are governed separately by § 770-113; lot splits remain subject to § 770-21B.

For two-family dwellings: 9,000 square feet lot area; 50 feet interior-lot width or 60 feet corner-lot width; 100 feet depth. Single-family detached dwellings instead follow 1F standards (§ 770-36B(1)).

For a two-family dwelling, minimum usable area per unit is based first on the smallest individual unit in adjacent two-family residences. Only if there are no such adjacent two-family residences does the 80% calculation based on adjacent single-family dwellings apply. In all cases the per-unit minimum is 800 square feet (§ 770-23B).

For multiple-family dwellings: 9,000 square feet for the first two units, plus 3,000 square feet for each additional unit. Single-family detached dwellings follow 1F standards; two-family dwellings follow 2F standards (§ 770-37D(1)-(2)).

Section 770-38D does not state a general numeric minimum lot area or lot width for this district. Applicable use-specific standards, setbacks, parking, screening and site-plan requirements remain controlling; absence of a district-wide number does not mean any lot can accommodate a use.

Section 770-39D does not state a general numeric minimum lot area or lot width for this district. Applicable use-specific standards, setbacks, parking, screening and site-plan requirements remain controlling; absence of a district-wide number does not mean any lot can accommodate a use.

Section 770-40D does not state a general numeric minimum lot area or lot width for this district. Applicable use-specific standards, setbacks, parking, screening and site-plan requirements remain controlling; absence of a district-wide number does not mean any lot can accommodate a use.

Section 770-42D does not state a general numeric minimum lot area or lot width for this district. Applicable use-specific standards, setbacks, parking, screening and site-plan requirements remain controlling; absence of a district-wide number does not mean any lot can accommodate a use.

Minimum lot area: 15 acres (§ 770-43D(1)). Section 770-43D does not separately state a numeric minimum lot width; setbacks and applicable use, access, parking and site-plan requirements still apply.

Section 770-41D does not state a general numeric minimum lot area or lot width for this district. Applicable use-specific standards, setbacks, parking, screening and site-plan requirements remain controlling; absence of a district-wide number does not mean any lot can accommodate a use.

Section 770-44D does not state a general numeric minimum lot area or lot width for this district. Applicable use-specific standards, setbacks, parking, screening and site-plan requirements remain controlling; absence of a district-wide number does not mean any lot can accommodate a use.

Minimum frontage: 50 feet. Minimum area is determined by lot-coverage restrictions, setbacks, screening and parking (§ 770-45D(1)). Incorporated use-specific standards remain applicable: single-family uses follow 1F; two-family uses follow 2F; multiple-family uses are subject to § 770-37, including its per-unit lot area, subject to the expressly authorized density bonus and findings.

Minimum frontage: 50 feet. Minimum area is determined by lot-coverage restrictions, setbacks, screening and parking (§ 770-46D(1)). Incorporated use-specific standards remain applicable: single-family uses follow 1F; two-family uses follow 2F; multiple-family uses are subject to § 770-37, including its per-unit lot area, subject to the expressly authorized density bonus and findings.

There is no single numeric lot size standard in § 770-47 or Article VIII for every PUD. The approved development agreement and plans must establish the applicable standards. Residential density begins with the pre-PUD district's density; additional density needs the prescribed Planning Commission recommendation and City Commission approval. Section 770-100C permits justified deviations from applicable setbacks and other requirements, and requires a perimeter setback/berming as found necessary, with setback distance set by the Planning Commission. Confirm the approved agreement and plan for the parcel; no default zero or unlimited value is established.

Section 770-48 and § 770-87 do not set a single district-wide numeric lot size for every Special Redevelopment project. Residential density is determined by the Planning Commission under § 770-87D(1). Nonresidential proposals must meet the district's development design standards, with adequate separation/buffering, subject to justified deviations approved under § 770-87D(2). Applicable setbacks and other requirements may be modified through the specified approval findings. Use the approved project plan and conditions; the absence of a standalone number does not mean zero or unlimited development.