(1) Lot Standards.
(a) In determining lot area in a residential zone, the area within a public or private street or alley shall be excluded.
(b) Solar standards may impose a more restrictive lot standard. (See EC 9.2790 Solar Lot Standards.)
(c) Lot area, frontage, and width minimums may be modified with an approved cluster subdivision in R-1 or Planned Unit Development (PUD) in any zone, or adjustments may be made if consistent with the criteria in EC 9.8030(1) and reviewed and approved concurrently with a planned unit development in any zone.
(2) Small Lots. Lots shall comply with other small lot provisions unless approved as a cluster subdivision or a Planned Unit Development (PUD). (See EC 9.2770 Small Lot Standards for R-2, R-3 and R-4 Zones.)
(3) Minimum Lot Area for Middle Housing.
(a) A duplex may be developed on:
1. Any lot or parcel with a lot area that is at least 2,250 square feet; or
2. Any lot or parcel where a single-unit dwelling is permitted.
(b) A triplex may be developed on any lot or parcel with a lot area that is at least 3,500 square feet.
(c) A fourplex may be developed on any lot or parcel with a lot area that is at least 4,500 square feet.
(d) A cottage cluster may be developed on any lot or parcel with a lot area that is at least 4,500 square feet.
(e) Lot Area Reduction for Small Middle Housing Units. When the average size of proposed dwelling units in a duplex, triplex, fourplex, or cottage cluster is less than 900 square feet, the lot area minimum shall be reduced by 25 percent (for example, a 3,500 square foot lot created for development of a triplex with an average size of units less than 900 square feet would be allowed to reduce the minimum lot area requirement to 2,625 square feet).
For the purposes of this subparagraph, “Average size” means the average square footage of all dwelling units in the duplex, triplex, fourplex or cottage cluster using the formula at EC 9.2741(4)(c).
(f) Lot Area Reduction for Income-Qualified Middle Housing. When at least 50 percent of the dwelling units in a duplex, triplex, fourplex, or cottage cluster meet the definition of income-qualified middle housing, the lot area minimum shall be reduced by 25 percent. In calculating the number of income-qualified middle housing units for this subparagraph, fractional dwelling units shall be rounded down to the nearest whole number (for example, 50 percent of the units in a triplex equals 1.5 units, so at least 1 unit must be income-qualified to for the triplex to qualify for the lot area reduction pursuant to this subparagraph).
(4) Flag Lots.
(a) No variances to residential flag lot standards are allowed.
(b) With the exception of flag lots created for the purpose of siting middle housing, the creation of new flag lots is prohibited in the R-1 zone within the city-recognized boundaries of Amazon Neighbors, Fairmount Neighbors and South University Neighborhood Association.
(c) Other residential flag lot standards also apply. (See EC 9.2775 Residential Flag Lot Standards for R-1, R-2, R-3 and R-4.)
(d) Middle Housing on Flag Lots. When development of a duplex, triplex, fourplex or cottage cluster, is proposed on a flag lot the lot area minimum for the flag lot shall be 4,500 square feet, excluding the pole portion of the lot.
(5) Exceptions to the maximum lot size shall be granted if any of the following is met:
(a) Existing physical circumstances such as topographically constrained lands, conservation easements, existing buildings, or utility easements prevent the ability to further divide the lot.
(b) The lot exceeding the maximum lot size is intended to reserve a large lot for future land division with feasibility demonstrated by a conceptual buildout plan.
(c) The subdivision achieves a minimum density of 9 units per net acre.
(d) The exception will enable protection of natural resources.
(6) Duplex and Triplex Lot Frontage and Width. The minimum lot frontage and minimum lot width is 20 feet for interior and corner duplex lots. The minimum lot frontage and minimum lot width is 35 feet for interior and corner triplex lots.
(7) In R-1, interior lots shall not have frontage on two non-intersecting streets unless approved through the cluster subdivision or planned unit development process where alternative proposals were evaluated, and there is no feasible alternative to the creation of double frontage lots.
(8) Middle Housing Lots. Middle Housing lots shall comply with EC 9.2777 Middle Housing Lot Standards.
(9) Lot width and lot frontage minimums in R-2, R-3 and R-4 can be reduced to 20 feet as part of an approved site review plan, planned unit development, or cluster subdivision. Unless otherwise approved through a planned unit development or cluster subdivision, at no point, for the entire extent of the lot, shall the side lot lines be less than 20 feet apart.
(10) Alley Access Only Lots/Parcels can be created only through an approved cluster subdivision in the R-1 zone or an approved planned unit development in any zone.