17.12.030 – Bulk regulations

Table 17.12-2 establishes bulk regulations for the residential districts. Chapter 17.22 specifies permitted encroachments in yards and setbacks applicable to accessory buildings and structures.

 TABLE 17.12-2
 RESIDENTIAL DISTRICT BULK REQUIREMENTS

ft = feet

sf = square feet

du = dwelling unit

ZONING DISTRICT

RE-1

RE-2

RS-1

RS-2

RS-3

RS-4

Minimum Lot Area

1 ¼ acres (54,450 sf)

25,000 sf

18,000 sf

11,000 sf

8,400 sf

6,600 sf

Minimum Lot Width

250 ft

125 ft

100 ft

80 ft

60 ft

60 ft

Maximum Building Coverage

20%

20%

20%

25%

30%

30%

Maximum Building Height

40 ft or 2 ½ stories, whichever is less

40 ft or 2 ½ stories, whichever is less

35 ft or 2 ½ stories, whichever is less

35 ft or 2 stories, whichever is less

35 ft or 2 stories, whichever is less

34 ft or 2 stories, whichever is less

Minimum Front Yard[1]

40 ft

40 ft

40 ft

30 ft

30 ft

20 ft

Minimum Side Yards

Interior Side Yards

20 ft each side

15 ft each side

10 ft each side

Combined width of 16 ft, neither less than 6 ft

Combined width of 16 ft, neither less than 6 ft

Combined width of 14 ft, neither less than 5 ft

Exterior Side Yard[2]

40 ft

40 ft

40 ft

30 ft

25 ft

15 ft

Minimum Rear Yard

50 ft

50 ft

50 ft

40 ft

40 ft

30 ft

[1] Where 50% or more of the street frontage of a block has existing principal building setbacks less than the front yard or exterior side yard required by the zoning district, the required front yard or exterior side yard may be reduced to the average of the existing front or exterior side yard setbacks on that street frontage of the block.  Only front yard setbacks shall be used to compute the reduced front yard setback; only exterior side yard setbacks shall be used to compute the reduced exterior side yard setback.

[2] If a corner lot has insufficient width to provide the required exterior side yard and still maintain a buildable width of thirty-two feet, then the exterior side yard may be reduced so as to provide a buildable width of thirty two feet; provided that in no event shall the exterior side yard be reduced to less than thirty percent of the width of the lot. 

 

TABLE 17.12.2

RESIDENTIAL DISTRICT BULK REQUIREMENTS

ft = feet

sf = square feet

du = dwelling unit

ZONING DISTRICT
  RT-1 RT-2 RT-3 RT-4
Minimum Lot Area[3]
 
8,400 sf 6,600 sf 5,000 sf Single-Family Detached: 5,000 sf

Two-Family: 3,750 sf per du 

Two-Family: in BT Overlay: 5,000 sf

All Other Uses: 10,000 sf

Minimum Lot Width 60 ft 50 ft 50 ft 50 ft
Maximum Building Coverage[4]
 

 

For structures 1 ½ stories or less, 30%

 
For structures over 1 ½ stories, 25%

For structures 1 ½ stories or less, 30%

 
For structures over 1 ½ stories, 25%

For structures 1 ½ stories or less, 30%

 
For structures over 1 ½ stories, 25%

For structures 1 ½ stories or less, 30%

 
For structures over 1 ½ stories, 25%

Maximum Building Height 34 ft or 2 stories, whichever is less 34 ft or 2 stories, whichever is less 32 ft or 2 stories, whichever is less 32 ft or 2 stories, whichever is less
Minimum Front Yard[5]               

 

30 ft 25 ft 20 ft 20 ft
Minimum Side Yards:
Interior Side Yards:                            

For Structures 1 1/2 stories or less, 6 feet or 10% of lot width whichever is greater

For Structures over 1 1/2 stories, 8 feet or  10 % of lot width, whichever is greater

 

For Structures 1 1/2 stories or less, 6 feeet or 10% of lot width hichever is greater

For Structures over 1 1/2 stories, 8 feet or  10 % of lot width, whichever is greater

 

For Structures 1 1/2 stories or less, 5 feeet or 10% of lot width hichever is greater

For Structures over 1 1/2 stories, 6 feet or  10 % of lot width, whichever is greater

For Structures 1 1/2 stories or less, 5 feet or 10% of lot width whichever is greater

For Structures over 1 1/2 stories, 6 feet or  10 % of lot width, whichever is greater

Exterior Side Yard[6]
 

 

25 ft 20 ft 15 ft 15 ft
Minimum Rear Yard 40 ft 30 ft 30 ft 30 ft

[3]  The Lot Area for Two Family, Townhouse and Multi-Family developments with more than one lot may be calculated by adding the land area of all lots and common areas on which one category of dwellings is located, and dividing the total land area by the total number of dwelling units of that category.  Common areas may be included in the calculation of land area, except for the area within a public or private street right of way; if no right of way is designated for private streets, the area between the backs of curbs of the private street shall be excluded.

[4]   In RT-1, RT-2, RT-3 and RT-4 Districts, if a detached garage is provided in lieu of an attached garage, or if an attached garage is accessed via an alley, a) on lots 65 feet or less in width, 500 square feet of additional Building Coverage is allowed, and b) on lots more than 65 feet in width, 250 square feet of additional Building Coverage is allowed.

[5] Where 50% or more of the street frontage of a block has existing principal building setbacks less than the front yard or exterior side yard required by the zoning district, the required front yard or exterior side yard may be reduced to the average of the existing front or exterior side yard setbacks on that street frontage of the block.  Only front yard setbacks shall be used to compute the reduced front yard setback; only exterior side yard setbacks shall be used to compute the reduced exterior side yard setback.

[6] If a corner lot has insufficient width to provide the required exterior side yard and still maintain a buildable width of thirty-two feet, then the exterior side yard may be reduced so as to provide a buildable width of thirty two feet; provided that in no event shall the exterior side yard be reduced to less than thirty percent of the width of the lot.

 

TABLE 17.12-2

RESIDENTIAL DISTRICT BULK REQUIREMENTS

ft = feet

sf = square feet

du = dwelling unit

ZONING DISTRICT

RM-1

RM-2

RM-3

Minimum Lot Area[7]

Single-Family: 6,600 sf

Two-Family and Townhouse: 5,445 sf/du

All Other Uses: 10,000 sf

Single-Family: 5,000 sf

Two-Family, Townhouse and Multi-Family: 4,300 sf/du

All Other Uses: 10,000 sf

Single-Family: 5,000 sf

Two-Family and Townhouse: 4,300 sf/du

Multiple-Family: 2,200 sf/du

All Other Uses: 10,000 sf

Minimum Lot Width

Single-Family: 50 ft

Two-Family and Townhouse: 24 ft/du

All Other Uses: 65 ft

Single-Family: 50 ft.

Two-Family and Townhouse: 24 ft/du

All Other Uses: 65 ft

Single-Family: 50 ft

Two family and Townhouse: 24 ft/du

All Other uses: 65 ft

Maximum Building Coverage

30%

35%

40%

Maximum Building Height

35 ft or 3 stories, whichever is less

Multiple-Family: 40 ft or 3 ½ stories, whichever is less

All Other Uses: 35 ft or 3 stories, whichever is less

Multiple-Family: 45 ft or 4 stories, whichever is less

All Other uses:  35 ft or 3 stories, whichever is less

Minimum Front Yard[8]

30 ft., 20 ft. when adjoining a local street

30 ft., 20 ft. when adjoining a local street

30 ft.

Minimum Side Yards:

 

Interior Side Yard

Single-Family: Combined width of 14 ft, not less than 5 ft

Two family and Townhouse: 10 ft. each side

 

Single- Family: Combined width of 14 ft, not less than 5 ft

Two Family and Townhouse: 10 ft. each side

Multiple-Family Dwellings: 25 ft. each side

 

Single-Family: Combined width of 14 ft, not less than 5 ft

Two Family and Townhouse: 10 ft. each side

Multiple-Family Dwellings: 25 ft. each side

Exterior Side Yard

Abutting an arterial or collector street: 30 ft

Abutting all other streets: 20 ft

Abutting an arterial or collector street: 30 ft

Abutting all other streets: 20 ft

30 ft

Minimum Rear Yard

25 ft; 5 ft. for garages accessed from an alley

25 ft; 5 ft. for garages accessed from an alley

30 ft; 5 ft. for garages accessed from an alley

Landscape Buffer Yards[9]

Not Required

Not Required

30 ft.

[7] The Lot Area for Two Family, Townhouse and Multi-Family developments with more than one lot may be calculated by adding the land area of all lots and common areas on which one category of dwellings is located, and dividing the total land area by the total number of dwelling units of hat category.  Common areas may be included in the calculation of land area, except for the area within a public or private street right of way; if no right of way is designated for private streets, the area between the backs of curbs of the private street shall be excluded.

 [8] Where 50% or more of the street frontage of a block has existing principal building setbacks less than the front yard or exterior side yard required by the zoning district, the required front yard or exterior side yard may be reduced to the average of the existing front or exterior side yard setbacks on that street frontage of the block.  Only front yard setbacks shall be used to compute the reduced front yard setback; only exterior side yard setbacks shall be used to compute the reduced exterior side yard setback.

[9 ]Within the zoning districts specified, a Landscape Buffer Yard shall be provided along any lot line that abuts or is across a street from property in any RE, RS, or RT District.  See Chapter 17.26 for planting and screening requirements for Landscape Buffers.

(2016-Z-26: § 2; 2011-Z-2: § 2; 2011-Z-1: § 11; 1988-Z-8: § 11; 1986-Z-11: § VI, VII, VIII; 1960-16: VII (B) (3-10))