Lot size and width in Rochester Hills, MI

A lot in RE needs at least 43,560 square feet (one acre) and 120 feet of width. A new dwelling needs at least 1,500 square feet of floor area.

A lot in R-1 needs at least 20,000 square feet and 100 feet of width. A new dwelling needs at least 1,500 square feet of floor area.

A lot in R-2 needs at least 15,000 square feet and 100 feet of width. A new dwelling needs at least 1,400 square feet of floor area.

A lot in R-3 needs at least 12,000 square feet and 90 feet of width. A new dwelling needs at least 1,200 square feet of floor area.

A lot in R-4 needs at least 9,600 square feet and 80 feet of width. A new dwelling needs at least 912 square feet of floor area.

Ordinance 202 removed the former § 138-5.101(R) option for a 60-foot-wide, 7,000-square-foot R-4 lot. The schedule retains the 80-foot width and 9,600-square-foot minimum area. Other lawful nonconforming-lot provisions require their own review.

Single-family: at least 6,000 square feet of lot area and 50 feet of width per unit. Two-family: 6,000 square feet per unit, 50 feet of width per structure. Multiplexes and bungalow courts have their own standards in § 138-6.700.A. Corner lots need 15 extra feet of width.

The owner may elect the R-3 development path: minimum lot area 12,000 square feet and width 90 feet. For the cluster path, § 138-6.207 incorporates R-3 bulk requirements but the cluster chapter does not state a separate smaller individual-lot area or width entitlement. Project density and common open-space review apply; at most four attached units per building. Section 138-4.201 distinguishes eligible locations and densities (3.9 units per acre near specified thoroughfares; 3.0 for the transition and unusual-physical-condition categories, with their criteria). Under § 138-6.206, specified floodplain/wetland/subaqueous lands count at 50% for density calculations and the remaining land may not exceed an average five units per acre; this is not a general five-unit-per-acre entitlement.

Density is set per unit by bedroom count: efficiency 5,200 square feet of lot area, one bedroom 5,600, two bedrooms 6,000, three bedrooms 6,400, four bedrooms 7,000. A den or other extra room counts as a bedroom. Duplex lots need 6,000 square feet per unit and 50 feet of width per unit. Structures with three or more units need at least half an acre and 150 feet of width.

For duplexes, Table 4 says R-4 requirements, while §§ 138-6.100–103 expressly state RM-1 duplex lot/dimensional requirements and incorporate R-4 minimum dwelling floor area. These texts should be reconciled with Planning for a particular duplex; do not automatically substitute every R-4 dimension for the specific RM-1 schedule.

Manufactured-home sites must average at least 5,500 square feet per unit. The average may be reduced by up to 20%, with no individual site below 4,400 square feet, only when each square foot gained by reducing the average below 5,500 is replaced with additional dedicated open space beyond other required open space. This is not an unconditional 4,400-square-foot site allowance.

The overlay development site must contain at least 10 acres, subject to modification under § 138-6.507. Section 138-6.502 does not prescribe minimum area or width for individual detached-house lots. Maximum base densities depend on the underlying district: RE 0.95, R-1 2.05, R-2 2.75, R-3 3.45, R-4 4.25 dwelling units per acre. Underlying-district development remains an alternative, not a source of interchangeable favorable standards.

No fixed district-wide minimum lot area or width is stated in Table 7. Under § 138-5.101.E the parcel must have sufficient area and width for the proposed use to meet all yard and other ordinance requirements. This is a functional minimum, not unrestricted lot division.

Base minimum site area is 5 acres and width is 400 feet. A smaller parcel qualifies only under § 138-5.101.E: existing access unless a new access is approved; a recorded restriction on additional drives; cross-access easements where feasible; and no separate freestanding monument sign entitlement.

No fixed district-wide minimum lot area or width is stated in Table 7. Under § 138-5.101.E the parcel must have sufficient area and width for the proposed use to meet all yard and other ordinance requirements. This is a functional minimum, not unrestricted lot division.

The flex-business overlay option is available only for parcels larger than 2 acres (§ 138-8.101). Article 8 states no general minimum lot width. The underlying-district alternative remains available. Larger parcel thresholds for increased height are additional conditions, not the basic overlay eligibility test.

Section 138-6.302 does not establish a separate minimum parcel area or width. Building depth at the build-to line must be at least 20 feet; front facade occupancy at least 80%, and side-street facade occupancy at least 50%. These are building-form standards, not minimum lot depth. Coverage, yards, parking and other development standards also apply.

No fixed district-wide minimum lot area or width is stated in Table 7. Under § 138-5.101.E the parcel must have sufficient area and width for the proposed use to meet all yard and other ordinance requirements. This is a functional minimum, not unrestricted lot division.

No fixed district-wide minimum lot area or width is stated in Table 7. Under § 138-5.101.E the parcel must have sufficient area and width for the proposed use to meet all yard and other ordinance requirements. This is a functional minimum, not unrestricted lot division.

No fixed district-wide minimum lot area or width is stated in Table 7. Under § 138-5.101.E the parcel must have sufficient area and width for the proposed use to meet all yard and other ordinance requirements. This is a functional minimum, not unrestricted lot division.

No fixed district-wide minimum lot area or width is stated in Table 7. Under § 138-5.101.E the parcel must have sufficient area and width for the proposed use to meet all yard and other ordinance requirements. This is a functional minimum, not unrestricted lot division.