Page 106 - Des Moines - Zoning, Planning and Design Ch 134, 135
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135-1. BUilDiNG tYPeS                                                                             DRAFT

         Downtown General

         1.4.3   DOWNtOWN GeNerAl reGUlAtiONS

                                           DX1            DX2            DXR          NOTeS/ReFeReNCeS
          A.  Building Siting Refer to Figure 1.4-B
          q   Multiple Principal Buildings  Permitted     Permitted      Permitted
                                                                                      Courtyards permitted per Note 1.
              Minimum Primary Frontage                                                See 135-7.1.1 for measurement
          w Coverage                       95%            90%            80%          information.
                                                                                      See Note 3 for river frontage requirements.
              Primary Frontage Build-to Zone                                          Minimum pedestrian area is required per
          e (ft)                           0-10           0-15           0-15         Note 2.
                                                                                      See 135-7.1.2 for measurement
              Non-Primary Frontage Build-to                                           information.
          r Zone (ft)                      0-15           0-15           0-20         See Note 3 for river frontage requirements
              Minimum Interior Side Setback
          t (ft)                           0              0              10
          y   Minimum Rear Setback (ft)    5 except 0 at alley  5 except 0 at alley  15 except 0 at
                                                                         alley
              Maximum Impervious Area      90%            85%            80%          See 135-7.1.5 for measurement
          u Additional Semi-Pervious Area  10%            15%            15%          information.
              Garage/Loading Entrance                                                 See 135-2.3.8 for additional garage door
          i Location                       Any non-primary street or rear facade      requirements.
          o   Permitted Driveway Access    Alley; if no alley exists or is planned, one driveway off each   See 135-4.13 for additional driveway
                                           non-primary street
                                                                                      regulations
          B.  Height Refer to Figure 1.4-C
          1)  Minimum Overall Height       5 stories      3 stories      3 stories    See 135-7.1.6 for measurement
                                                                                      information.
          1!  Maximum Overall Base Height  15 stories     8 stories      8 stories    See Note 4 for height limitations in Capitol
                                                                                      Dominance Area
          1@  Additional High-Rise Height  unlimited height  Not permitted  Not permitted  See 135-2.4 for high-rise design
                                                                                      requirements.
              Primary Frontage Ground Story:
          1#    Minimum Height (ft)        10             10             10
                Maximum Height (ft)        24             24             16           Story heights are measured floor to floor.
              All Other Stories:                                                      Floor heights greater than 20 ft count as 2
                                                                                      stories in overall height.
          1$    Minimum Height (ft)        9              9              9            See 135-7.1.6 for measurement
                Maximum Height (ft)        14             12             12           information.



                                                                    alley       y
                                                       t     rear lot line
                                                                         o1)         u





                                                     non-primary street  Building Footprint  side lot line



                                                         corner side lot line
                                                                     q i






                                                             front lot line           r  minimum pedestrian
                                                                                         area required
                                                              primary street
                                                                    e
         Figure 1.4-B. Downtown General: Building Siting


         135-1-14                                                                         DRAFT AuGuST 3, 2017
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