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The density/dimensional matrix tables establish the density and dimensional standards for the zoning districts identified in the tables below.

Density and Dimensional Standards – Residential Districts 

RR-1 Residential Reserve District

R-1 Single-Family Dwelling District

R-2 Single-Family Dwelling District

R-3 Single-Family Dwelling District

R-4 Manufactured Home District

M-1 Two-Family Dwelling District

M-1a Limited Multiple-Family Dwelling District

M-2 Multiple-Family Dwelling District

M-3 Multiple-Family Dwelling District

Standards

Notes

Districts

Lot Standards

Minimum Lot Area (sq. ft.)

New Lots [3][7][14]

20 acs

6,500

5,000

4,000

30,000

4,500

4,500

7,500

7,500

Maximum Building Coverage

% of lot area

10

45

50

50

50

50

50

60

60

Minimum Lot Width (ft.)

2 – 4 units per lot

300

60

40

40

40

50

50

50

50

Maximum Density

Dwelling units/acre

6

10

15

30

Principal Buildings

Minimum Setbacks (ft.) [1][2]

Front [4]

30

30

25

4; 15

25

25

25

25

25

Side [5][6]

7

7

5

0

5

5

5

5

5

Rear

30

30

25

10

25

25

25

25

25

Maximum Height (ft.)

42

42

42

42

42

42

45

50

160

Minimum Number of Lots in District

10

Accessory Buildings (Detached)

Minimum Setbacks (ft.) [1][2]

[12][13]

Front [8]

30

30

25

15

25

25

25

25

25

Side [5][9]

3

3

3

3

3

3

3

3

3

Rear

5

5

5

5

5

5

5

5

5

From other buildings [10]

6

6

6

6

6

6

6

6

6

Maximum Accessory Building Coverage Ratio

% of principal building coverage

90

90

90

90

90

90

90

90

90

Maximum Height (ft.)

[11]

15 – 20

15 – 20

15 – 20

15 – 20

15 – 20

15 – 20

15 – 20

15 – 20

15 – 20

Minimum Garage Entry Setback (ft.)

Front entry

20

20

20

20

20

20

20

20

20

Minimum Garage Entry Setback (ft.)

Rear entry (from alley)

10

10

10

10

10

10

10

10

10

Minimum Garage Entry Setback (ft.)

Side entry (from alley)

5

5

5

5

5

5

5

5

5

Maintenance Accessory Building

Maximum size (sq. ft.)

400

400

Maximum #

1

1

NOTES:

[1] If the recorded plat of subdivision provides greater setbacks, the provisions of the plat shall prevail.

[2] The side yard of a corner lot and rear yard of a double frontage lot shall conform to the minimum front yard requirements of its district.

[3] In RR-1 district, the minimum lot size is 20 acres unless the lot meets minimum compliance with subdivision regulations.

[4] In R-3 district: First number represents front setback when an attached garage is designed for side entry. Second number represents front setback when attached garage is designed for front entry.

[5] In R-3 district: District allows zero-foot side yard setback on one side; 10-foot on other side with a minimum of 10 feet between principal buildings. Accessory buildings for a zero lot line dwelling shall not be located in the required 10-foot side yard.

[6] For single-family attached dwellings in M districts, a zero-foot side yard setback is allowed along the lot line separating the two units; a five-foot setback is required on the other lot line.

[7] In M-1 and M-1a districts, the minimum lot area of 4,500 square feet is “per unit.”

[8] Accessory structures shall not be located within a required front yard or beyond the front face of the principal structure, whichever is more restrictive. However, a minimum setback of 20 feet from all street rights-of-way shall be provided for roadside stands, garages and carports. If, in the judgment of the Planning Director, construction of a roadside stand, garage or carport is compatible with the neighborhood, in respect to availability of land for public sidewalks, right-of-way needs, and the location of structures within the block, then such construction may occur with revised minimum setback(s) as determined by the Planning Director.

[9] An unenclosed carport located less than six feet from the principal building may extend to within three feet of a side property line.

[10] Setback from Principal Building. No portion of an accessory building, except for a carport, shall be located closer than six feet to the principal building or another accessory building on the same lot. However, an unenclosed breezeway may be extended between the principal structure and the accessory structure for the purpose of providing a covered walkway. In no event shall the construction of a covered walkway or a detached carport located next to another building be deemed to join the principal and accessory structures into one principal structure.

[11] Maximum Height. Accessory buildings and structures shall not exceed 15 feet when the principal building is one story or 20 feet when the principal building is two stories or more.

[12] Reversed Corner Lot. On a reversed corner lot in a residential district, and within 15 feet of any adjacent property to the rear in a residential district, no detached accessory building or portion thereof located in a required rear yard shall be closer to the side lot line abutting the street than a distance equal to the least depth which would be required under this division for the front yard on such adjacent property to the rear. Further, in the above instance, all such accessory buildings shall meet the minimum side yard requirements of such adjacent property which coincides with the side lot line or portion thereof of property in any residential district.

[13] Attached Accessory Buildings. Attached accessory buildings, except for side yards for carports as outlined above, shall be located pursuant to the requirements for principal buildings. Attached garages and carports shall be located on a lot so that a minimum 20-foot-length “aisle” between the building and the street right-of-way line is provided.

[14] The minimum lot area in the R-4 district is the combined area needed for 10 contiguous lots.

Density and Dimensional Standards – Office/Institutional Districts and Commercial Districts 

O&I-1 Office & Institutional District

O&I-2 Office & Institutional District

O&I-3 Office & Institutional District

C-1 Commercial District

C-2 Commercial District

C-3 Commercial District

C-4 Commercial District

Standards

Notes

Districts

Lot Standards

Minimum Lot Area (sq. ft.)

7,500

7,500

7,500

7,500

10,000

10,000

10,000

Maximum Building Coverage

% of lot area

40

50

60

40

50

60

60

Minimum Lot Width (ft.)

50

50

50

50

50

50

50

Principal Buildings

Setbacks (ft.) [1][2][3]

Front

25

25

25

25

25

25

25

Side

7

7

10

10

10

10

10

Rear

25

25

25

25

25

25

25

Maximum Building Size (sq. ft.)

Ground floor area

7,500

20,000

10,000

50,000

Maximum Height (ft.) [5][6]

42

60

75

35

50

70

70

Accessory Buildings (Detached)

Setbacks (ft.) [1][2]

Front [4]

25

25

25

25

25

25

25

From other buildings

6

6

6

6

6

6

6

Minimum Garage Entry Setback (ft.)

Rear entry (from alley)

10

10

10

10

10

10

10

Minimum Garage Entry Setback (ft.)

Side entry (from alley)

5

5

5

5

5

5

5

Maximum Height (ft.) [6]

Maintenance Accessory Building

Maximum size (sq. ft.)

400

400

400

400

600

600

600

NOTES:

[1] If the recorded plat of subdivision provides greater setbacks, the provisions of the plat shall prevail.

[2] The side yard of a corner lot and rear yard of a double frontage lot shall conform to the minimum front yard requirements of the district.

[3] During site plan review, side yard setbacks may be reduced to zero feet where the buildings are attached along a common lot line.

[4] Accessory structures shall not be located within a required front yard or beyond the front face of the principal structure, whichever is more restrictive. However, a minimum setback of 20 feet from all street rights-of-way shall be provided for garages and carports. If, in the judgment of the Planning Director, construction of a garage or carport is compatible with the neighborhood, in respect to availability of land for public sidewalks, right-of-way needs, and the location of structures within the block, then such construction may occur with revised minimum setback(s) as determined by the Planning Director.

[5] Height restrictions of airport overlay district may be more restrictive.

[6] Height shall not exceed the height of its principal structure.

Density and Dimensional Standards – All Other Districts 

I-1 Light Industrial District

I-2 Heavy Industrial District

U-1 University District

MS-1 Medical Services District

X-I Mixed Use District

X-2 Mixed Use District

X-3 Mixed Use District

D-1 Downtown District

* See [17]

D-2 Downtown District

D-3 Downtown District

Standards

Notes

Districts

Lot Standards

Minimum Lot Area (sq. ft.)

New lots

10,000

10,000

None

None

None

None

None

None

None

None

Maximum Density

Dwelling units/acre

15

12

12

29

Maximum Building Coverage

% of lot area

85

85

80

75

75

100

100

75

100

Minimum Lot Width (ft.)

50

50

50

50

50

25

0

0

0

Setbacks (ft.) [1][2][7][10]

Front [5]

0

0

25

0 – 15

0 – 25

0 – 10

0

0

0

Side [4][7][10]

0

0

5; 10

0 – 8

10

0

0

0

0

Rear [4][10]

0

0

25

0 – 25

25

10

0

0

0

Maximum Height (ft.) [3][6][8] [16]

70

None

160

40

50

50

See [16]

50

60

Accessory Buildings (Detached)

Maximum Accessory Building Coverage Ratio

% of principal building coverage

90

90

90

90

Setbacks (ft.) [1][2]

Front [9][11]

25

0 – 15

0 – 25

0 –10

Side [10][14][15]

3

3

3

3

Rear [10][14]

5

5

5

5

From other buildings [12]

6

6

6

6

Minimum Garage Entry Setback (ft.)

Front entry [9]

20

20

20

20

Minimum Garage Entry Setback (ft.)

Rear entry (from alley)

10

10

10

10

Minimum Garage Entry Setback (ft.)

Side entry (from alley)

5

5

5

5

Maximum Height (ft.) [3][13]

15 – 20

15 – 20

15 – 20

15 – 20

NOTES:

[1] If the recorded plat of subdivision provides greater setbacks, the provisions of the plat shall prevail.

[2] The side yard of a corner lot and rear yard of a double frontage lot shall conform to the minimum front yard requirements of the district.

[3] Height restrictions of airport overlay district may be more restrictive.

[4] I districts: 10-foot rear or seven-foot side yard setback where that yard abuts any residential dwelling district.

[5] I districts: Where the frontage along one side of the street in that block abuts a residential district, then the front yard requirements of the residential district shall apply.

[6] U-1 district: Minimum yard requirements and maximum height shall be in accordance with the approved master development plan.

[7] MS-1 district: The side setbacks are five feet for buildings up to 50 feet in height and 10 feet for buildings taller than 50 feet in height.

[8] MS-1 district: Any other building or structure that is not a hospital shall not exceed a height of 100 feet; however, if located within 150 feet of the boundary of the district, it shall not exceed a height of 50 feet.

[9] X districts: Setbacks within a range are determined at the discretion of the Planning Director.

[10] X-2 district: Side and rear yard setbacks may be reduced if not abutting residential uses, as determined at the discretion of the Planning Director.

[11] Accessory structures shall not be located within a required front yard or beyond the front face of the principal structure, whichever is more restrictive. However, a minimum setback of 20 feet from all street rights-of-way shall be provided for roadside stands, garages and carports. If, in the judgment of the Planning Director, construction of a roadside stand, garage or carport is compatible with the neighborhood, in respect to availability of land for public sidewalks, right-of-way needs, and the location of structures within the block, then such construction may occur with revised minimum setback(s) as determined by the Planning Director. If more restrictive than provided above, setbacks as set forth by plats of subdivision shall apply to any and all accessory structures.

[12] Setback from Principal Building. No portion of an accessory building, except for a carport, shall be located closer than six feet to the principal building or another accessory building on the same lot. However, an unenclosed breezeway may be extended between the principal structure and the accessory structure for the purpose of providing a covered walkway. In no event shall the construction of a covered walkway or a detached carport located next to another building be deemed to join the principal and accessory structures into one principal structure.

[13] Maximum Height. In the MS-1, X, and D-2 districts, accessory buildings and structures shall not exceed 15 feet when the principal building is one story or 20 feet when the principal building is two stories or more.

[14] The accessory building (detached) side and rear setbacks only apply to residential uses in the X and MS-1 districts.

[15] An unenclosed carport located less than six feet from the principal building may extend to within three feet of a side property line.

[16] (i) In D-1 district, no building hereafter erected or structurally altered shall exceed a height at the street line which is greater than the width of the street right-of-way times a factor of three. On corner lots, and where the widths of the two intersecting streets are varied, the larger street width shall be used to determine the height of any building or structure.

(ii) Exception. Within the State zoning area, as defined by K.S.A. 75-3620, the height of structures and buildings shall be regulated in accordance with the following provisions: no building shall exceed a height at the street line of six stories or 75 feet, but above the height permitted at the street line three feet may be added to the height of the building for each one foot that the building or portion thereof is set back from all sides of the lot, except that the cubical contents of such building shall not exceed the cubical contents of a prism having a base equal to the area of the lot and a height equal to two times the width of the street; provided, however, that a tower with a base not to exceed 20 percent of lot area, nor to have any side greater than 60 feet, nor to have any wall closer than 20 feet to any lot line, may be constructed without reference to the above limitations. Any applicable provisions of Chapter 18.225 TMC shall apply to buildings erected in this district.

[17] D-1 district: Refer to Downtown Topeka Urban Design Guidelines.

(Ord. 20340 § 6, 2-1-22.)