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Except for the dimensional requirements chart at LUC 20.20.010, the provisions of Chapter 20.20 LUC apply to development within the OLB-OS Land Use District. The following chart establishes the dimensional requirements for the OLB-OS Land Use District.

Dimensions (1)

OLB-OS Land Use District

Minimum Setbacks of Structures (feet) (2) (3) (13)

50

Rear Yard (2) (3) (4) (10) (13)

50

Side Yard (2) (3) (4) (10) (13)

30

2 Side Yards (2) (3) (4) (10) (13)

60

Minimum Lot Area (5) (12)

2 acres

Minimum Dimensions (feet) Width of Street Frontage

200

Width Required in Lot (6)

200

Maximum in Building Height (feet) (7)

70

Maximum Lot Coverage by Structures (8) (9) (10)

35

Floor Area Ratio (11)

0.5

Impervious Surface (14) (15) (16)

80

(1)See LUC 20.25H.045 for density/intensity limitations in the Critical Areas Overlay District.

(2)See LUC 20.20.030 for designation and measurement of setbacks.

(3)See Part 20.25H LUC for critical area buffers and critical area structure setbacks.

(4)Except as provided in Note (13) of this section, if the setback abuts a street right-of-way, access easement or private road, the minimum dimension is 10 feet unless a greater dimension is specified.

(5)See LUC 20.20.012.

(6)See LUC 20.20.015.

(7)Except where the provisions of Part 20.25B LUC apply, the allowable building height of any building located in OLB-OS may be increased by one story, but not to exceed 15 feet, if basement parking for that building occupies a minimum of 75 percent of the building footprint.

(8)Maximum lot coverage by structures is calculated based on the total area of the entire parcel designated OLB-OS, including both the development area and the reserved area.

(9)Lot coverage is calculated after subtracting all critical areas and stream critical area buffers; provided, that coal mine hazards (LUC 20.25H.130) and habitat associated with species of local importance (LUC 20.25H.150) shall not be subtracted.

(10)Any portion of a parking structure that is entirely below the average finished grade shall not be included in calculation of maximum lot coverage by structures, and such portion may intrude into required setbacks.

(11)Any office building or any office portion of a building shall not exceed a floor area ratio of 0.5, calculated by dividing the total amount of gross square footage of buildings or structures to be constructed in the development area by the net on-site land area (as described in the definition of “Floor Area Ratio” in LUC 20.50.020) of the entire parcel designated OLB-OS, including both the development area and the reserved area. Refer to LUC 20.25H.045 for limitations on development intensity applicable to sites in the Critical Areas Overlay District.

(12)Only one structure may occupy a site of not less than the minimum lot size (two acres). Two structures may occupy a site of four acres and for each increment of minimum lot size (two acres), an additional structure may be added. Structures on four acres or more may be clustered. All structures shall conform to these requirements.

(13)The required setbacks on the interior of an OLB-OS parcel, or on the interior of a larger development of which the OLB-OS parcel is a part, may be reduced down to zero feet in order to increase required external setbacks or to preserve significant topographic or vegetative features of the development area. Modifications to required setbacks pursuant to this section may be included in the concomitant agreement authorized by LUC 20.25L.010, or may be imposed as conditions to a permit for development in the development area.

(14)See LUC 20.20.460 for exceptions and performance standards relating to impervious surface.

(15)Impervious surface limits for legally established nonconforming nonresidential uses and for new allowed nonresidential uses in these residential land use districts shall be 80 percent.

(16)Maximum impervious surface and maximum lot coverage by structures are independent limitations on allowed development. All areas of lot coverage by structures are included in the calculation of total maximum impervious surface, unless such structures are excepted under LUC 20.20.460.

(Ord. 5683, 6-26-06, § 25; Ord. 5403, 8-5-02, § 11)