[Amended 12-10-1979 Ord. No. 24676; 10-9-1984 by Ord. No. 25585; 5-24-2010 by Ord. No. 31347; 12-12-1977 by Ord. No. 24266]
3.11.
Districts enumerated. For the purpose of this chapter, the City is hereby divided into the following classes of use districts:
RA-1 | Residence A-1 Districts | |
RA-2 | Residence A-2 Districts | |
RA-3 | Residence A-3 Districts | |
RA-4 | Residence A-4 Districts | |
RB | Residence B Districts | |
RC | Residence C Districts | |
RD | Residence D Districts | |
HR1 | Hope Avenue Redevelopment District One [Added 5-28-2002 by Ord. No. 29513] | |
HR2 | Hope Avenue Redevelopment District Two [Added 5-28-2002 by Ord. No. 29513] | |
BA | Business A Districts | |
BB | Business B Districts | |
BC | Business C Districts [Added 12-12-1991 by Ord. No. 27265] | |
LC | Limited Commercial Districts | |
C | Commercial Districts | |
I | Industrial Districts | |
C/R | Conservation/Recreation Districts [Amended 12-11-1978 by Ord. No. 24441] |
3.12.
Floodplain district. A Floodplain District is herein established as an overlay district and includes all special flood hazard areas within the City of Waltham designated as Zones A and AE on the Middlesex County Flood Insurance Rate Map (FIRM) issued by the Federal Emergency Management Agency (FEMA) for the administration of the National Flood Insurance Program. The map panels of the Middlesex County FIRM that are wholly or partially within the City of Waltham are panel numbers 25017C039I E, 25017C0392E, 25017C0393E, 25017C0394E, 25017C0411E, 25017C0412E, 25017C0413E, 25017C0414E, 25017C0532E, 25017C0551E and 25017C0552E dated June 4, 2010. The exact boundaries of the district shall be defined by the one-hundred-year base flood elevations shown on the FIRM and further defined by the Middlesex County Flood Insurance Study (FIS) report dated June 4, 2010. The FIRM and FIS report are incorporated herein by reference and are on file with the City Clerk, Consolidated Public Works Department, Engineering Department, Conservation Commission, and the Inspector of Buildings.
3.13.
Zoning District Map. The districts enumerated in Article III, Section 3.11, are hereby established as shown, defined and bounded on the map accompanying this chapter entitled "Waltham Massachusetts Zoning District Map," revised October 1, 1993, and on file with the City Clerk. The Zoning District Map and all explanatory matter thereon are hereby made a part of this chapter, and it is hereinafter referred to as the "Zoning Map." A reproduction of said map, updated to include later amendments, shall be included with each published copy of this chapter.
3.14.
District boundary determination. The location of the boundary lines of the districts as shown on the Zoning Map shall be determined as follows:
3.141.
District boundary lines on streets, railroads or rivers. Where the boundary lines are shown on the Zoning Map to be within the street lines of public or private ways, railroad rights-of-way or rivers, the center lines of such streets, railroads or rivers shall be the district boundary lines.
3.142.
District boundary lines on lot lines. Where the boundary lines are shown to be approximately on property or lot lines and the exact location of the property, lot or boundary lines is not indicated by means of figures, then the property or lot lines shall be the district boundary lines.
3.143.
District boundary lines outside of street lines. Where the boundary lines are shown to be located outside the street lines of public or private ways and are shown to be approximately parallel thereto, they shall be deemed to be parallel to such street lines. Figures placed upon the Zoning Map between district boundary lines and street lines indicate the distance in feet between the two lines measured at right angles to the street lines, unless otherwise indicated.
3.144.
All other district boundary lines. In all cases which are not covered by the other provisions of this section, the location of district boundary lines shall be determined by the distance in feet from other lines upon such map, wherever given; otherwise, such location shall be determined according to the scale of such map.
3.145.
Determination of uncertain boundary lines. Whenever any uncertainty exists as to the exact location of a district boundary line, the location of such lines shall be determined by the Inspector of Buildings after consultation with the City Engineer.


