How building addresses are assigned

(a) Numbering convention. Building numbers shall consist of whole numbers (no fractions) and shall be assigned based on an equal interval system. Under this system, the address is derived by measuring the distance along a street and dividing that distance by some equal interval to determine the address for a building. The number assigned shall be the numbered interval closest to the driveway or front entrance. The interval unit shall be small enough to provide an address to each potential building permitted in the zoning district. The director shall determine the appropriate interval unit for urban and rural areas. (b) Point of origin; odd and even numbering. For numbers assigned after August 14, 2004, numbers shall increase from the point of origin with even numbers on the right-hand side. In determining the point of origin, the director may consider any of the following: the existing pattern of surrounding streets; numbering pattern relative to mauka/makai directions; entrance to a cul-de-sac; and/or numbering pattern relative to east/west or north/south direction of the street. (c) Prefixes and suffixes. On parcels with multiple buildings, or in situations approved by the director, the assigned number may be followed by an alphabet letter to distinguish each building or units within a building. The director may add a prefix to any number, such as the tax map key zone. 14-35 SUPP. 1 (1-2017) (d) Corner lots. The address for corner lots shall be the street where the main driveway intersects or where the main entry faces. If there is no driveway or the structure does not directly face either street, the number should be determined based on the predominate street frontage. (2004, ord 04-82, sec 2.)14-83