Page 100 - Des Moines - Zoning, Planning and Design Ch 134, 135

135-1. BUilDiNG tYPeS DRAFT

Generally

DRAFT 135-1. BUILDING TYPES IMAGES ILLUSTRATING THE SPECIFIC
Storefront
135-1.5 Storefront BUILDING TYPE
1.5.1 DESCRIPTION & INTENT
The Storefront building type is a low-to mid-rise for
use at mixed-use nodes and along mixed-use corridors
throughout the city. The Storefront building is built
close to the front lot line to create continuous building
walls along sidewalks with the goal of increased
walkability at the node and along corridors. Parking is
located in the rear of the lot behind the building or, in
some locations, small interior side yard parking lots are
permitted.
The key facade elements of the Storefront building type
are a high level of storefront glass on the ground floor
front facade and regularly spaced entrances along the
street sidewalk.
1.5.2 ILLUSTRATIVE IMAGES
The images shown in Figure 1.5-A are intended to
illustrate the general character intent for the building
type. The buildings and sites in each image may not
fulfill all of the building type requirements.
Figure 1.5-A. Example Illustrations of Storefront Building Type
CITY OF DES MOINES CHAPTER 135: PLANNING AND DESIGN DRAFT 135-1-17
Regulations are organized in 4 categories:
C. Uses defines how permitted uses may be distributed within the
A. Building Siting defining where the building & building.
parking is located on the site.
D. Public Way Facade Requirements establishes design requirements
B. Height defines the number of stories and height of for street and other public way facades related mainly to windows,
each story. doors, and roofs.

135-1. BUilDiNG tYPeS DRAFT DRAFT 135-1. BUILDING TYPES
Storefront Storefront Districts in which the building type
1.5.3 StOreFrONt reGUlAtiONS MX1 MX2 MX3 CX NOTeS/ReFeReNCeS is permitted are labeled across the
MX1 MX2 MX3 CX NOTeS/ReFeReNCeS C. Uses Refer to Figure 1.5-C
A. Building Siting Refer to Figure 1.3-B Permitted Public, Civic, and Permitted Public, Civic, and top of the table. Regulations may
Institutional uses; Commercial
Primary Frontage Facade
q Multiple Principal Buildings Not permitted Permitted Permitted Permitted See Note 1 for double frontage lots 1^ Ground Story First 30 ft of depth Institutional uses; Commercial uses uses except Business and Trade See Chapter 134, Article 3 for permitted be different for each district.
adjacent to N districts.
uses per zoning district and definition
except Business and Trade School, School, and Office; Artisan
See 135-7.1.1 for measurement along frontage and Office; Artisan Industrial; and Industrial; Wholesale Sales/ of uses..
Minimum Primary Frontage information.. lobbies to upper story uses Distribution; and lobbies to upper
e Coverage 85% 90% 60% 60% See Note 1 for double frontage lots story uses
adjacent to N districts. Non-Primary Frontage, All See Chapter 134, Article 3 for permitted
Primary Frontage Build-to 1& Upper Stories, & Basement Any permitted use uses per zoning district and definition
r Zone (ft) 0-5 0-5 0-5 0-10 Minimum pedestrian area is required of uses..
per Note 2.
Non-Primary Frontage Build- See 135-7.1.2 for measurement 1* Required Occupied Space Minimum 30-foot depth on all full height floors of primary frontages See 135-7.2 for definition of occupied
space.
t to Zone (ft) 0-10 0-10 0-10 0-20 information.
Parking/Loading within
Minimum Interior Side 0, 5 abutting a district that does not permit a 1( Principal Building Permitted fully in any basement and rear of all other stories Refer to occupied space requirement
above.
y Setback (ft) Storefront building 5 See 135-5.10 for landscape buffer. D. Street & Public Way Facades and Roof Requirements Refer to Figure 1.5-D
u Minimum Rear Setback (ft) 5 except 0 at alley 15 except 0 at See Note 1 for double frontage lots Minimum Primary Frontage 65%, measured 70%, measured 65%, measured 60%, measured
adjacent to N districts.
alley
between 2 ft
Maximum Impervious Area 85% 85% 80% 80% See 135-7.1.5 for measurement 2) Ground Story Transparency between 2 ft and and 10 ft; blank between 2 ft and between 2 ft See 135-7.1.7 for measurement
and 8 ft; blank
i Additional Semi-Pervious 10% 15% 10% 15% information. Ground story requirements supersede 8 ft; blank wall wall limitations 8 ft; blank wall wall limitations information and the definition of
requirements per story, below.
Area limitations apply apply limitations apply apply transparency and blank wall limitations.
Surface Parking/Loading Rear yard, limited side yard only Rear yard, limited side yard only see Note 3 for limited side yard parking; Minimum Transparency See Note 4. for requirements at
corners.
Any non-primary street or rear
See 135-2.3.8 for additional garage
Location
Any non-primary street or rear
o Garage/Loading Entrance facade facade door requirements. 2! per Each Story & any Half 15%; blank wall limitations apply
Story
Location Principal entrance required on primary frontage facade; minimum of Tables define the regulations for
Alley; if no alley exists or is planned, one driveway off each non-primary 2@ Entrance Location & Number one per 45 ft of primary street facade; lobby entrance for upper story See 135-2.3.6 for principal entryway
1) Permitted Driveway Access street; if no alley or non-primary street exists, one driveway off a See 135-4.13 for additional driveway uses shall be located on a public way design requirements
regulations.
primary street with approval of city engineer each building type. Refer to 135-
Primary Frontage Entryway(s) Recessed between 3’ and 8’ from the portion of
B. Height Refer to Figure 1.5-C 2# Configuration the primary frontage facade closest to the street; No requirements See 135-2.3.6 for principal entryway 7.1 for definitions and methods of
design requirements
1! Minimum Overall Height 1 story 3 stories 1 story 1 story See 135-7.1.6 for measurement Primary Frontage Entrance & maximum 8’ wide if outside the build-to zone
At least 80% of entrances and the ground story shall be within 1.5’
information.
1@ Maximum Overall Height 3 stories 5 stories 5 stories 3 stories 2$ Ground Story Elevation vertically of adjacent sidewalk elevation measuring regulations.
Primary Frontage Ground
Primary Frontage Ground 2% Story Vertical Facade At least one shadow line per every 30’ of facade width See 135-7.2 for definition of shadow
line. See 135-2.3.9 for building
1$ Story: 12 15 12 12 Story heights are measured floor to Divisions articulation requirements.
floor.
Minimum Height (ft)
Maximum Height (ft) 18 20 18 20 See Note 5 for large format-retail 2^ Horizontal Facade Divisions At least one shadow line within 3’ of the top of the ground story; See 135-7.2 for definition of shadow
For buildings over 5 stories: minimum of one shadow line within 3’ of
heights.
All Other Stories: See 135-7.1.6 for measurement any story between the 3rd and 5th story line.
1% Minimum Height (ft) 9 9 9 9 information. Parapet, flat;
Maximum Height (ft) 12 14 12 12 2& Permitted Roof Types tower permitted See 135-1.17 for roof types. Graphics related to the tables
t alley 1* above. Graphics typically represent
rear lot line
u 1) tower tower one example of building type
1&
io 1% 1& 1( 2& 2^ requirements
non-primary street corner side lot line y interior side lot line 1@ 1! 1% 1% 1& 1& 1( 1( typical 2^ 135-1. BUilDiNG tYPeS DRAFT
2!
Storefront
Building Footprint
1^
1(
1$
2$ 2) A. Storefront Building Notes 5. Warehouse-Retail Space. In CX, taller floor to
floor heights may be permitted for warehouse-
r 2% typical 1. MX to N District Transition. MX district double retail space with approval of a type 1 design
frontage lots, deeper than 120 feet, that share a
front lot line minimum pedestrian 1& 1( 2@2# primary frontage with an N district shall provide exception per 135-6.2 and where all other
primary frontage ground story requirements are
area required
primary street the following: fulfilled:
a. One or more of the following building types
Figure 1.5-B. Storefront: Building Siting e Figure 1.5-C. Storefront: Height & uses Requirements Figure 1.5-D. Storefront: Facade Requirements shall front the adjacent N district primary a. The maximum height of the primary
frontage for up to a 24-foot wide segment
street:
i. House permitted in the adjacent N may be 28 feet.
district. b. When the primary frontage ground story
135-1-18 DRAFT AuGuST 2, 2017 CITY OF DES MOINES CHAPTER 135: PLANNING AND DESIGN DRAFT 135-1-19 ii. Row or Flat building as permitted in maximum height is met per the 30-foot
depth required in 135-7.1.7.F and the
NX2.
maximum height of any non-primary street
b. The MX district lot shall incorporate an is met per the “all stories” height, or, the
interior alley, lane, or drive to provide access remainder of the ground story may have a
to both the Storefront building parking and maximum height of 28 feet.
the garage/parking for the House, Row, or c. The taller space shall not front any other
Flat building. street.
c. The rear of the all buildings shall be fully d. The taller space shall not be more than 30
screened by buildings from both primary feet from any other side, or rear lot line.
streets.
2. Minimum Pedestrian Area. Along all streets
where the area from the back of curb to the
lot line is less than 12 feet, the build-to zone
shall begin at 12 feet from the back of curb and
extend into the site the depth defined.
SPECIFIC BUILDING TYPE TABLES 3. Limited Side Yard Parking. Limited side yard
parking is one double- or single-loaded aisle,
with the centerline of the aisle perpendicular to
& DIAGRAMS the street, permitted in the interior side yard.
Maximum width of a double-loaded aisle is 60
feet and 40 feet for single-loaded, measured
along the right-of-way. Parking may be angled or
head-in. Frontage Buffer is required per 135-5.9.
4. Building Corners. At street intersections, ground
story transparency requirements on primary
frontage shall extend around the corner of the
building a minimum of 30 feet, as measured
from the corner of the building down the non-
primary frontage. See 135-1.1.6.F for building
NOTES FOR FURTHER EXPLANATION OR UNIQUE requirements at street corners.
CIRCUMSTANCES FOR THE BUILDING TYPE
Figure 1.2-C. How to Read the Building Type Regulations 135-1-20 DRAFT AuGuST 2, 2017
135-1-8 DRAFT AuGuST 3, 2017