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Tool City Zoning Code

APPENDIX C

AREA, SETBACK, HEIGHT AND COVERAGE REGULATIONS

§ 1 AREA, SETBACK, HEIGHT AND COVERAGE REGULATIONS.

Area, Setback, Height and Coverage Regulations; Single-Family Dwelling, Detached
Zoning District
Min. Lot Area [1] (s.f.)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback[2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max Ground Coverage (% of lot area)
Min. Area of Main Bldg. (s.f.)
Accessory Structures
Area, Setback, Height and Coverage Regulations; Single-Family Dwelling, Detached
Zoning District
Min. Lot Area [1] (s.f.)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback[2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max Ground Coverage (% of lot area)
Min. Area of Main Bldg. (s.f.)
Accessory Structures
RA*
1 acre (43,560 s.f.)
150
25
25/25^
25
35**
15
Note 1; also see § 3 below
R-1
5,000
50
100
20
10/5^
5
30
65
Note 2; also see § 3. below
MH-2
5,000
50
100
20
10/5^
5
30
50
Note 3; also see § 3 below
Numbers in brackets are references to Notes in § 2 below.
This chart is not complete for all districts and uses.
^The first number is the minimum side yard setback from a public street; the second number is the minimum side yard setback for interior lots.
*Special regulations for agricultural uses in the RA District:
No agricultural structures shall be closer than 100 feet to any residential structure.
An agricultural structure shall not exceed 45 feet in height.
Note 1: An accessory structure shall not exceed two stories or 25 feet in height.
Note 2: An accessory structure shall not exceed two stories or25 feet in height.
Note 3: An accessory structure shall not exceed 15 feet in height.
 
Area, Setback, Height and Coverage Regulations; Single-Family Dwelling, Attached
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
MF-1
4,500
30
25
15/10A^*
20
35
50
Note 1; also see § 3 below
Numbers in brackets are references to Notes in § 2 below.
This chart is not complete for all districts and uses.
 
Area, Setback, Height and Coverage Regulations; Single-Family Dwelling, Attached
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
^The first number is the minimum side yard setback from a public street; the second number is the minimum side yard setback for interior lots.
*No setback required for common walls coincident with property line on internal lots; a five-foot setback is required for exterior walls not coincident with property lines on internal lots.
Note 1: An accessory structure shall not exceed two stories or 25 feet in height.
Area, Setback, Height and Coverage Regulations; Two-Family Dwelling
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
Area, Setback, Height and Coverage Regulations; Two-Family Dwelling
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
R-1
4,500
30
25
15/10^
20
35
50
Note 1; also see § 3 below
MF-1
10,000
100
25
15/10^
20
30
50
Note 1; also see § 3 below
Numbers in brackets are references to Notes in § 2 below.
This chart is not complete for all districts and uses.
^The first number is the minimum side yard setback from a public street; the second number is the minimum side yard setback for interior lots.
Note 1: An accessory structure shall not exceed 25 feet in height.
Area, Setback, Height and Coverage Regulations; Multi-Family Dwelling
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
Area, Setback, Height and Coverage Regulations; Multi-Family Dwelling
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
MF-1
10,000*
100
25
15/10^
20**
60
30
600***
Note 1; also see § 3 below
Numbers in brackets are references to Notes in § 2 below.
This chart is not complete for all districts and uses.
^The first number is the minimum side yard setback from a public street; the second number is the minimum side yard setback for interior lots.
*Plus 1,500 square feet for each one bedroom unit, 1,800 square feet for each two bedroom unit and 2,100 square feet for each two bedroom unit.
**Minimum floor space per bedroom unit.
***The distance from main structures to adjacent property zoned as R or MH-2 shall be 50 feet. The distance from accessory structures to adjacent property zoned as R or MH-1 shall be 20 feet.
Note 1: An accessory structure shall not exceed two stories or 25 feet in height.
Area, Setback, Height and Coverage Regulations; Manufactured Housing
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) [linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
Area, Setback, Height and Coverage Regulations; Manufactured Housing
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) [linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
Manufactured Home Subdiv. MH-2
5,000
50
100
20
15/10^
10
30
50
800
Note 1; also see § 3 below
Manufactured Home Park MH-1*
10 acres
See special regulations below
Note 2; also see § 3 below
Numbers in brackets are references to Notes in § 2 below.
This chart is not complete for all districts and uses.
^The first number is the minimum side yard setback from a public street; the second number is the minimum side yard setback for interior lots.
*Special regulations for manufactured home parks:
Minimum setback from park boundaries shall be 35 feet
Minimum lot size (manufactured home space) shall be 3,500 square feet.
Maximum density shall be 8 units per acre.
Minimum horizontal distance between manufactured homes shall be:
Side to side: 25 feet
End to end: 15 feet
Side to end: 15 feet
Minimum horizontal distance between the corners of adjacent mobile home that do not face each other or overlap shall be 15 feet.
Minimum horizontal density between a mobile home and a mobile home park access or circulation drive shall be 26 feet.
Note 1: An accessory structure shall not exceed 15 feet in height.
Note 2: An accessory structure shall not exceed two stories or 25 feet in height.
Area, Setback, Height and Coverage Regulations; Nonresidential Uses
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
Area, Setback, Height and Coverage Regulations; Nonresidential Uses
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
B-1^^
None
None
None
40
15/10^*
0*
35
None
Note 1; also see § 3 below
B-2^^
None
None
None
40
15/10^*
0*
60****
None
Note 1; also see § 3 below
THOR^^
25,000
150
125
50
15/10^*
10*
60****
None
Note 1; also see § 3 below
I-2^^^
None
None
None
40
15/15^**
10**
60****
None
Note 2; also see § 3 below
I-2^^^
None
Hone
None
40
25/25^**
10***
60****
None
Note 2; also see § 3 below
Numbers in brackets are references to Notes in § 2 below.
This chart is not complete for all districts and uses.
Area, Setback, Height and Coverage Regulations; Nonresidential Uses
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
Area, Setback, Height and Coverage Regulations; Nonresidential Uses
Zoning District
Min. Lot Area [1] (square feet)
Min. Lot Width (at front bldg. line) (linear feet)
Min. Lot Depth (average) (linear feet)
Front Setback [2] (linear feet)
Side Setback [3] (linear feet)
Rear Setback [4] (linear feet)
Hgt. Limit [5] (linear feet)
Max. Ground Coverage (% of lot area)
Min. Area of Main Bldg. (square feet)
Accessory Structures
^The first number is the minimum side yard setback from a public street; the second number is the minimum side yard setback for interior lots.
^^Special regulations for B-1, B-2 and THOR Districts:
Minimum distance between structures on the same lot shall be ten feet.
No parking, storage or similar use shall be permitted in the required front yards, except that automobile parking is permitted if separated by at least 100 feet from any Single-Family Residential District.
No parking, storage or similar use shall be permitted in the required side yard of this district adjoining a Single-Family District.
^^^Special regulations for I-1 and I-2 Districts:
Minimum distance between structures on the same lot shall be 15 feet, plus one-half the structure height above 35 feet.
No outdoor storage of materials or products shall be permitted within any of the required yard setbacks.
*Where the lot line abuts a Residential District, the setback shall be 25 feet.
**Where the lot tine abuts a Residential District, the setback shall be 100 feet.
***Where the lot line abuts a Residential District, the setback shall be 150 feet.
****Sprinklers required if building is more than 35 feet high.
Note 1: An accessory structure shall not exceed two stories or 25 feet in height.
Note 2: No accessory structure, excluding fences or walls, shall exceed the maximum height of the principal structure.
 

§ 2 NOTES TO AREA REGULATIONS.

1.   Exception to lot area requirement.
   a.   A lot/tract having less area than required that was an official lot of record at the time of adoption of this chapter may be used for a single-family dwelling.
   b.   No lot/tract existing at the time of passage of this chapter shall be reduced in area below the minimum requirements set forth in the respective district.
2.   Special front yard regulations.
   a.   The front yard setback shall be measured from the property line to the front face of the building, covered porch, covered terrace or attached accessory buildings.
   b.   Open and unenclosed terraces and porches may project into the required front yard for a distance not to exceed five feet, provided that no support structure for such extensions shall be located within the required front yard.
   c.   Every part of a required front yard shall be open and unobstructed from a point 30 inches above the general ground level of the graded lot to the sky. The requirements of this paragraph shall not apply, however, to living plant material and landscaping, lighting fixtures, flagpoles, mailboxes, basketball goal supports and similar structures, fountains or overhead service lines and poles for utilities, which shall be situated and constructed in accordance with the applicable codes of the city.
   d.   On any corner lot for which front and side yards are required, no wall, fence, structure, sign, tree or other planting or sloped terrace or embankment may be maintained higher than three feet above the street grade so as to cause danger or hazard to traffic by obstructing the view of the intersection from a point 30 feet back from the right-of-way corner. Visual clearance shall be provided in all zoning districts so that no fence, wall, vegetation, architectural screen, earth mounding or landscaping obstructs the vision of a motor vehicle driver approaching any street, alley or driveway intersection.
   e.   On corner lots, the front yard setback shall be observed along the frontage of both intersecting streets (unless shown specifically otherwise on an approved final plat).
   f.   Where a building line has been established by a plat approved by the City Council or by ordinance and such line requires a greater or lesser front yard setback than is prescribed by this chapter for the district in which the building line is located, the required front yard shall comply with the building line so established by such ordinance or plat provided no such building line shall be less than 20 feet, except as approved under a planned development.
   g.   Where the frontage on one side of a street between two intersecting streets is divided by two or more zoning districts, the front yard shall comply with the requirements of the most restrictive district for the entire frontage.
   h.   Where lots have double frontage, running through from one street to another, a required front yard shall be provided on both streets unless a building line for accessory buildings has been established along one frontage on the plat or by ordinance, in which event only one required front yard need be observed.
   i.   Where a future right-of-way line has been established for future widening or opening of a street or thoroughfare upon which a lot abuts, the front or side yard shall be measured from the future right-of-way line.
   j.   Accessory buildings or structures shall not be located in front of the main structure nor within the designated front yard of any lot or parcel.
3.   Special side yard regulations.
   a.   The ordinary extensions of window sills, awnings, belt courses, cornices, roof overhangs, eaves, chimneys and other architectural features may extend an additional 24 inches into a required yard.
   b.   When a nonresidentially zoned lot or tract abuts upon a zoning district boundary line dividing that lot or tract from a residentially zoned lot or tract, a minimum side yard of ten feet shall be provided on the nonresidential property. An opaque wood fence or masonry wall having a minimum height of six feet above the average grade of the residential property shall be constructed on nonresidential property adjacent to the common side or rear property line.
   c.   Accessory structures are required to have a five-foot side yard setback, except where the lot abuts a collector or major street in which case the standard provisions of this chapter prevail.
   d.   On any corner lot for which front and side yards are required, no wall, fence, structure, sign, tree or other planting or sloped terrace or embankment may be maintained higher than three feet above the street grade so as to cause danger or hazard to traffic by obstructing the view of the intersection from a point 30 feet back
from the right-of-way corner. Visual clearance shall be provided in all zoning districts so that no fence, wall, vegetation, architectural screen, earth mounding or landscaping obstructs the vision of a motor vehicle driver approaching any street, alley or driveway intersection.
   e.   Where a multi-family structure (apartment building) is erected so as to create inner courts, the faces of all opposite wails in such courts shall be a minimum distance of 30 feet apart and no balcony or canopy shall extend into such court area for a distance greater than five feet.
4.   Special rear yard regulations.
   a.   The required rear yard shall be open and unobstructed from a point 30 inches above the average elevation of the graded rear yard, except for accessory buildings as permitted herein.
   b.   Eaves, covered porches and roof extensions without structural support in the rear yard may extend into the rear yard a distance not to exceed four feet.
   c.   Accessory structures shall have a minimum rear yard setback of five feet. Structures attached to the main structure, such as garages and carports, are considered to be part of the main structure and are not considered to be accessory structures.
   d.   The minimum distance from the public right-of-way to the entrance of a garage or carport shall be 15 feet.
   e.   When a nonresidentially zoned lot or tract abuts upon a zoning district boundary line dividing that lot or tract from a residentially zoned lot or tract, a minimum rear yard of ten feet shall be provided on the nonresidential property. An opaque wood fence or masonry wall having a minimum height of six feet above the average grade of the residential property shall be constructed on nonresidential property adjacent to the common side or rear property line.
   f.   Where a multi-family structure (apartment building) is erected so as to create inner courts, the faces of all opposite walls in such courts shall be a minimum distance of 30 feet apart and no balcony or canopy shall extend into such court area for a distance greater than five feet.
5.   Special height regulations.
   a.   Church steeples, domes, spires, flagpoles, roof gables, chimneys and vent stacks may extend for an additional height not to exceed 15 feet from the maximum height limit of a structure to the highest point of any church steeple, dome, spire, flagpole, roof gable, chimney or vent stack.
   b.   Municipal water towers and sports lighting facilities, utility poles and utility towers shall be specifically exempted from the maximum height restrictions imposed by this chapter.
   c.   Water tanks, cooling towers, school, institutional buildings and ancillary buildings and facilities of a religious organization, such as a gymnasium or classroom building, may be erected to exceed 25 feet in height, provided that one additional foot shall be added to the front, rear and side yard setback requirements for each foot that such structures exceed 25 feet in height. Such structure shall not exceed 36 feet in height, except as provided in § 5.a above. The requirements established herein for additional setbacks shall not apply to the sanctuary building of a religious organization that is in excess of 25 feet in height.

§ 3 YARD, HEIGHT AND SIZE REGULATIONS; ACCESSORY BUILDINGS.

1.   Detached accessory structures shall be at least five feet from any principal structure on the same lot within residential districts and shall be considered in the calculating of the total coverage.
2.   Accessory buildings shall not be erected in any required front yard.
3.   No accessory structure, excluding fences or walls, shall be closer to any property line than the required yard setbacks (as measured from the overhang of the accessory structure).
4.   Accessory buildings may not be placed in the required side yard if the side yard lot line abuts a street.
5.   Garages entered from an alley shall be set back from the lot line adjacent to the alley a minimum of 20 feet.
6.   An accessory structure may not exceed one story.
7.   An accessory building shall not exceed the interior square footage of the principal structure or 600 square feet, whichever is less.
8.   No accessory building may be placed so as to negatively impact drainage on any adjacent lot by diversion or impoundment of stormwater flows.
9.   An accessory structure must closely resemble the color and scheme of the principal structure.
10.   On residential lots of two or less, with a minimum of 5,000 square feet, the homeowner may construct one accessory structure, up to 1,000 square feet if it meets all setbacks.
11.   On residential combined lots of three or more, the homeowner may have one accessory structure with a maximum of 2,000 square feet but may not exceed the square footage of the principal structure. A minor accessory structure can be built, in addition, but may not exceed 200 square feet.
(Ord. passed 4-4-2000; Ord. passed 3-20-2025)