[Code 1975, § 39-5; Code 1992, § 32-66; 2-22-1999 by Ord. No. 1156]
For the purpose of this chapter, the City is hereby divided into the following districts:
R
Single-Family Residential District
R-1
Single- and Two-Family Residential District
A-1
Medium-Density Multiple-Family Residential District
A-2
High-Rise Multiple-Family Residential District
CCD
Community College District
B
Neighborhood Business District
C-1
General Business District
CBD
Central Business District
MD
Marina District
M-1
Light Industrial District
M-2
General Industrial District
I
Institutional District
Historic districts
[Code 1975, § 39-6; Code 1992, § 32-67]
(a) 
The boundaries of the districts established in § 52-161 are shown upon the map attached to the ordinance from which this chapter is derived and made a part of this chapter, which map is designated as the Zoning Map of the City. The Zoning Map on file in the office of the City Clerk and all notations, references, and other information shown thereon are a part of this chapter and have the same force and effect as if such Zoning Map and all such notations, references, and other information shown thereon were fully set forth or described in this chapter.
(b) 
Except where reference on such map is to a street or other designated line by the dimensions shown on such map, the boundary lines follow lot lines or the center lines of the streets or alleys or such lines extended and the corporate City limits, as they existed at the time of the adoption of the ordinance from which this chapter is derived.
(c) 
Where a district boundary line, as established in this section or as shown on the Zoning Map, divides a lot which was in a single ownership and of record at the time of enactment of the ordinance from which this chapter is derived, the use authorized thereon and the other district requirements applying to the least restricted portion of such lot under this chapter shall be considered as extending to the entire lot, provided that the more restricted portion of such lot is entirely within 25 feet of such dividing district boundary line. The use so extended shall be deemed to be conforming.
(d) 
Questions concerning the exact location of district boundary lines shall be determined by the Zoning Board of Appeals after recommendation from the Planning Commission, according to the rules and regulations which may be adopted by it.