Darien City Zoning Code
CHAPTER 17
40 Rd Two-Family Residential District
§ 17.40.010 Description and purpose.
[Prior code § 17.0309(1)]
This district is intended to permit development which has a moderate density community character. The land use standards for this district permit both single-family detached residential development and twin house/duplexes permitted by right and two flats permitted as a conditional use. Density and intensity standards for this district are designed to ensure that the two-family residential district shall serve as a designation which preserves and protects the moderate density residential community character of its area. Various residential development options are available in this district, with a maximum gross density (MGD) of 8.0 dwelling units per acre.
Rationale. This district is used to provide for the permanent protection of an area for those who want to live in a moderate density residential environment and who retain enough land with their residence, or in their development, to ensure that the desired community character is maintained as long as the RD district designation is retained, regardless of how much development occurs within that area. As such, this district is intended to provide the principal location for a wide range of single-family attached dwelling types, including single-family, duplexes, twin houses, and two flats.
§ 17.40.020 List of allowable land uses.
[Prior code § 17.0309(2); amended by Ord. 250, 2007]
B.
Land uses permitted as special use:
Cultivation (per Section 17.08.010).
Active outdoor public recreation (per Section 17.10.020).
Public services and utilities (per Section 17.10.050).
Community living arrangement (one to eight residents) (per Section 17.10.070).
Community living arrangement (nine to 15 residents) (per Section 17.10.080).
C.
Land uses permitted as conditional use:
Single-Family: eight-thousand-square foot lot.
Two-flat: eight-thousand-square foot lot.
Clear cutting (per Section 17.08.070).
Indoor institutional (per Section 17.10.030).
Outdoor institutional (per Section 17.10.040).
Bed and breakfast establishments (per Section 17.12.120).
Group day care center (nine or more children) (per Section 17.12.130).
§ 17.40.030 Regulations applicable to residential uses.
[Prior code § 17.0309(3); amended by Ord. 218, 2003]
A.
Residential Density and Intensity Requirements.
Minimum zoning district area: 11,000 square feet.
Maximum gross density (MGD): 8.0 du/acre.
Minimum landscape surface ratio (LSR). 50%.
Maximum building coverage: 40%.
B.
Residential Bulk Requirements.
1.
Minimum lot area: 11,000 square feet (except for twin homes at 5,000 square feet).
2.
Minimum lot width: 90 feet (twin homes: 45 feet per lot).
3.
Minimum street frontage: 50 feet.
4.
Minimum setbacks: (Note Subsection (B)(5) of this section, along zoning district boundaries).
a.
Front or street side lot line to house: 25 feet, 40 feet for a lot adjacent to a street with an officially mapped right-of-way equal to or exceeding 100 feet.
b.
Front or street side lot line to garage: 25 feet, 40 feet for a lot adjacent to a street with an officially mapped right-of-way equal to or exceeding 100 feet.
c.
Side lot line to house or garage: 10 feet or zero feet along common wall.
d.
Total of both sides, lot lines to house/garage: 25 feet, zero feet along common wall.
e.
Rear lot line to house or garage: 25 feet.
f.
Side lot line to accessory structure: five feet from property line, five feet from alley.
g.
Rear lot line to accessory structure: five feet from property line, five feet from alley.
5.
Peripheral setback: See Section 17.68.100(D), Table B along zoning district boundary.
6.
Minimum paved surface setback: five feet from side or rear; 10 feet from street.
7.
Minimum dwelling unit separation: 20 feet or zero feet along common wall.
8.
Maximum height of dwelling unit: 35 feet.
9.
Maximum height of accessory structure: 18 feet.
10.
Minimum number of off-street parking spaces required on the lot (includes garage, drives, and all designated parking surfaces): three.
11.
Minimum dwelling core dimensions: 24 feet by 40 feet.
12.
Minimum roof pitch: 3:12.
13.
Minimum eave width: 18 inches.
C.
Residential landscaping requirements: not applicable for single-family. See nonresidential landscaping requirements for multifamily residential.
§ 17.40.040 Regulations applicable to nonresidential uses.
[Prior code § 17.0309(4)]
A.
Nonresidential Density and Intensity Requirements.
Minimum zoning district area: 11,000 square feet.
Minimum landscape surface ratio (LSR): 40%.
Maximum building size (MBS): na.
B.
Nonresidential bulk requirements.
1.
Minimum lot area: 11,000 square feet.
2.
Minimum lot width: 70 feet.
3.
Minimum street frontage: 50 feet.
4.
Minimum setbacks: (Note Subsection (B)(5) of this section, along zoning district boundaries).
a.
Building to front or street side lot line: 25 feet, 40 feet for a lot adjacent to a street with an officially mapped right-of-way equal to or exceeding 100 feet.
b.
Building to residential side lot line: 10 feet.
c.
Building to residential rear lot line: 25 feet.
d.
Building to nonresidential side lot line: 10 feet.
e.
Building to nonresidential rear lot line: 25 feet.
5.
Peripheral setback: See Section 17.68.100(D), Table B along zoning district boundary.
6.
Minimum paved surface setback: five feet from side or rear; 10 feet from street.
7.
Minimum building separation: 20 feet.
8.
Maximum building height: 35 feet.
C.
Nonresidential Landscaping Requirements (Nonresidential, Two- and Multifamily).