[Amended 9-20-2011 by Ord. No. 657]
The purpose of the Mixed-Use (MU) District is as follows:
A. 
Encourage innovations in residential and nonresidential development and redevelopment that make use of a mixed-use form of development so that demand for residential and certain nonresidential development and redevelopment may be met by greater variety in type, design, and layout of development sites and by more effective use of developable lands and effective conservation open space.
B. 
Extend greater opportunities for better housing and diversity of housing types, recreation, and access to goods, services, and employment to citizens of the Borough of Slippery Rock.
C. 
Allow for the development and redevelopment of fully integrated, mixed-use pedestrian-oriented development, providing residential spaces, shopping, employment, business, and personal services.
D. 
Minimize traffic congestion, infrastructure costs, and environmental impacts through compact development modeled after smart growth principles.
E. 
Promote the implementation of the objectives of the Borough of Slippery Rock Comprehensive Plan for guiding the location of growth and redevelopment.
F. 
Provide opportunity to meet development potential in a manner responsive to particular market demands and in a manner consistent with the preservation of property values within the existing residential and nonresidential areas of the Borough.
G. 
Promote an efficient, compact land use pattern to promote easy access among stores and services by pedestrians, to shorten trips, and to lessen dependence on the vehicle.
H. 
Encourage developments that produce a relationship between individual buildings, the circulation systems of a particular area of the Borough, and adjacent areas.
I. 
Encourage development sites to be designed to create a compact, clustered development pattern using rectilinear building layout and interconnected street systems.
J. 
Minimize the number of access points along arterial and collector streets to maintain the long-term mobility function of a roadway and to improve service to adjacent properties.
A. 
Permitted principal uses. Permitted principal uses shall be as follows:
(1) 
Single-family detached dwelling.
(2) 
Multifamily dwelling.
(3) 
Townhouse or row house.
(4) 
Two-family dwelling, duplex.
(5) 
Churches and other places of worship, including parish houses, educational facilities, and required parking and landscaping, all located on a public street.
(6) 
Essential services.
(7) 
Public buildings.
(8) 
The keeping of domestic animals in this district shall be limited to house pets, as defined, and shall not include any activity of a commercial nature such as a kennel, stable, or coop.
(9) 
Mobile food vendors, permitted only on a parcel that abuts Franklin Street or Grove City Road.
[Added 5-14-2019 by Ord. No. 708]
B. 
Permitted accessory uses. Permitted accessory uses shall be as follows:
(1) 
Home occupations.
(2) 
Other accessory structures and uses customarily appurtenant to a permitted use.
(3) 
Private swimming pools, permanent and portable, regulated as follows, except that these regulations shall not apply to portable swimming pools which shall not be more than three feet in height nor more than 15 feet in length.
(4) 
Public and private garages and parking areas.
(5) 
Signs.
(6) 
Game courts, erected on the same lot as the principal structure, shall be set back 15 feet from all property lines and constructed only in the rear yard of the lot.
Conditional uses shall be as follows:
A. 
Bakeries.
B. 
Banks.
C. 
Eating and drinking establishments, without drive-in or drive-through.
D. 
Personal and professional services and clinics.
E. 
Retail sales and services, excluding automotive; maximum size of any one tenant space to be 10,000 square feet.
F. 
Combination commercial/residential uses with dwelling units above the first floor.
G. 
Business services.
H. 
Professional offices.
I. 
Delicatessens and coffee shops.
J. 
Financial institutions.
K. 
Specialty retail; maximum size of any one tenant space to be 10,000 square feet.
[Amended 2-7-2012 by Ord. No. 662]
A. 
Building height:
(1) 
Minimum building height: two stories or 20 feet.
(2) 
Maximum building height: three stories, up to 35 feet.
[Amended 2-4-2014 by Ord. No. 678]
B. 
Residential density and land use mix:
(1) 
Minimum lot sizes:
[Amended 2-4-2014 by Ord. No. 678]
(a) 
Single-family detached: 7,260 square feet.
(b) 
Two-family dwellings: 8,412 square feet.
(c) 
Townhouses: 10,890 square feet.
(d) 
Multifamily dwellings: 14,520 square feet.
(2) 
A mix of compatible land uses within developments of all sizes is encouraged.
(3) 
Where a development is 20 acres or larger in gross acreage, a mix of two or more residential use types (e.g., single-family, townhouse, apartment) within a development is required.
(4) 
Where a development is 20 acres or larger in gross acreage, a mix of mixed residential use types and compatible nonresidential uses is required. A minimum of 30% of the development square footage must be dedicated to compatible nonresidential or residential uses.[1]
[1]
Editor's Note: Original Subsection 5, regarding increased maximum density in a mixed-use development, of the 1983 Code, which immediately followed this subsection, was repealed 2-4-2014 by Ord. No. 678.
C. 
Setbacks:
(1) 
Minimum yard setbacks:
(a) 
Front: 20 feet.
(b) 
Side: 10 feet. The side yard may be reduced to zero feet when the side lot line is located along a shared common wall between building uses or between separate buildings that directly abut one another.
(c) 
Rear: 40 feet.
(2) 
Buildings that are three stories in height shall be set back from properties in the R-A Residential Zoning District 150 feet.
[Amended 2-4-2014 by Ord. No. 678]
D. 
Building layout and design:
(1) 
Maximum building facade length: 200 feet.
(2) 
Buildings shall be located and arranged in a manner that creates compact, clustered development patterns.
(3) 
All buildings within a development shall reflect a continuity obtained by maintaining a consistent building scale and material.
(4) 
At least 50% of at least two sides of nonresidential buildings must be transparent. In particular, building facades facing public or private streets.
(5) 
The front building facade of every building shall face a street, plaza, or landscaped walkway that is visible and directly accessible from a street.
(6) 
Mechanical equipment and utilities such as furnaces, air conditioners, elevators, transformers, and utility equipment, whether on the roof or mounted on the ground, shall be completely screened from adjacent properties and adjacent streets. Screening shall be compatible with the architectural treatment of the principal structure and/or adjacent area landscape treatments.
(7) 
To illustrate conformity with the requirements herein, submission of architectural elevations for any proposed building may be required.
(8) 
Mixed-use buildings are encouraged. Such buildings house nonresidential uses on the ground floor and residential or office uses on upper floors.
(9) 
Mixed-use development and mixed-use buildings are intended to service needs of the surrounding neighborhood. They are to be buffered from adjacent residential areas while incorporating design features that are compatible with surrounding residential neighborhoods. Mixed-use developments shall provide a gradual transition between adjacent residential districts and commercial areas or major roadways.
E. 
Vehicle and pedestrian access.
(1) 
An internal street network shall be provided. The street network internal to the development site may connect at one or both ends to a perimeter public street or adjacent development. The internal street system is intended to provide vehicle and pedestrian access and circulation to all uses within a development site and provide connections to adjacent development. The internal street system shall provide access to parking via a minimum number of curb cuts.
(2) 
Sidewalks shall be constructed along any side of a public or private street that is within or adjacent to the development.
(3) 
Access to residential units via alleys at the rear of buildings is encouraged.
(4) 
Convenient and safe pedestrian circulation shall be provided through a system of walkways, paths, and/or sidewalks between parking areas and buildings and to adjacent developments and residential neighborhoods.
(5) 
Pedestrian circulation shall be separated from vehicular traffic.
(6) 
Sidewalks shall connect buildings with all parking areas and sidewalks along nearby streets.
(7) 
Sidewalks parallel to parking lots and/or streets shall be separated from such areas by a curbed landscaped area measuring a minimum of four feet in width.
(8) 
Crosswalks shall be constructed to move people safely to and from buildings and parking areas and shall be constructed of a material that provides strong contrast with the vehicular travel surface, such as stamped concrete with integral coloring.
(9) 
Curb cuts along streets shall be minimized. Where possible, shared vehicle access between adjacent properties shall be used.
F. 
Parking.
(1) 
Off street parking areas shall be designed to reduce the negative impacts of large paved areas and contain landscaped areas and defined pedestrian walkways.
(2) 
Parking lots shall be divided by landscaped strips into smaller parking areas of no more than fifty parking spaces. Such landscape strips shall be a minimum of 10 feet wide and shall contain a minimum of one canopy tree (minimum 2.5 inches caliper in size) every thirty feet.
(3) 
All parking lots that serve multifamily buildings and nonresidential buildings shall be screened from streets and adjacent properties through the use of landscaping and/or decorative walls or fences along the parking lot perimeter. The perimeter screening shall be continuous and include masonry walls, decorative fencing, or a row of shrubs and one shade tree planted every 30 feet, or a combination of wall, fencing, or landscaping. The walls, fencing, or landscaping (at time of planting) must be between approximately 42 inches and 48 inches in height, such that the headlights from parked vehicles are screened from view.
(4) 
A maximum of one bay of parking having a maximum depth of 65 feet may be placed between a public street and the front facade of a building.
(5) 
Parking areas shall be designed to allow for logical interconnections to abutting properties for the purpose of providing effective and safe circulation that supports access management strategies for collector and arterial roadways.
G. 
Outdoor eating areas.
(1) 
Restaurants or other similar food services may provide outdoor seating in sidewalk areas, provided that a four-foot clear pedestrian passage is maintained and building access is not impaired.
H. 
Accessory structures. Accessory structures in the Mixed-Use District shall be regulated as such structures are regulated in the R-3 Residential District.
[Added 6-7-2016 by Ord. No. 692]
[Added 6-7-2016 by Ord. No. 692]
A. 
Rental of single-family detached residential buildings: Each single-family detached residence may include no more than one dwelling unit for rent. Where a single-family detached residence includes a dwelling unit for rent, the maximum occupancy of the dwelling unit by adult unrelated persons shall be no greater than one more than the number of bedrooms within the dwelling unit.
B. 
The number of adult unrelated persons occupying a dwelling unit for rent shall not exceed four except as may be permitted for the rental of single-family detached dwellings.