2.7.4050 Residential Zoning Districts

2.7.4050 Residential Zoning Districts.

This section was recently amended by Ordinance NS-2487, codified in January 2024.

A. Permitted Uses. The land uses listed in Table 2.7.4050 are permitted in the residential districts, subject to the provisions of this chapter. Only land uses that are specifically listed in Table 2.7.4050, land uses that are incidental and subordinate to a permitted use, and land uses that are approved as “similar” to those in Table 2.7.4050 may be permitted.

Table 2.7.4050. Permitted and Conditional Uses
Land Use	RL	SLO
Single-Room Occupancy	N	P
Single-Unit Detached Dwelling Units	P	P
*Accessory Dwelling Units (ADUs)	P	P
*Duplexes	P	P
*Townhomes	N	P
Family Childcare Home (16 or fewer children)	P	P
*Home Business (Class A/Class B)	P	P
*Accessory Uses and Structures	P	P
Parks	P	P
Recreational Facilities	P	P
*Short-Term Rental	P	P
*Shelters, see BDC 3.6.600	P	P

*Subject to special standards as described in BDC Chapter 3.6, Special Standards and Regulations for Certain Uses.

	Front*	Rear*	Side
RL	20 ft.	20 ft.	10 ft.
SLO	10 ft., except garages and/or carports must be set back 20 ft.	10 ft.	5 ft.

*On corner lots, one front setback may be subject to side setback requirements and rear setbacks may be subject to side setback requirements. Garages and/or carports must maintain a minimum front setback of 20 feet.

a. Townhomes. Interior side setbacks are zero feet.

b. Architectural Features. The following architectural features are allowed to encroach into the front, side and rear setbacks by no more than two feet provided a minimum setback of three feet is provided from the property line: eaves, chimneys including fireplace enclosures and chimney chases, bay windows up to eight feet in width, window wells, and similar architectural features.

c. Front Setback Encroachments. The following may encroach into the front setback:

i. An unenclosed covered or uncovered porch, patio, deck or stoop with a maximum floor height not exceeding 18 inches may be set back a minimum of six feet from the front property line, as long as it does not encroach into any easement. No portion of the structure may encroach closer than six feet to the front property line including the architectural features in subsection (B)(1)(b) of this section.

ii. As shown in Figure 2.1.300, side entry garages that access a street must have a driveway with a minimum length of 20 feet from the front and side property lines. Garages that access an alley must have a driveway with a minimum length of 18 feet.

iii. Stairs, ramps and landings that are not roofed or enclosed above or below the steps may be in the front setback when they follow the grade.

d. Side and Rear Setback Encroachments. The following may encroach into side and rear setbacks:

i. An uncovered porch, patio, deck or stoop located above finished grade with a maximum floor height not exceeding 18 inches must be set back a minimum of 18 inches from the side and rear property lines, as long as they do not encroach into any easement.

ii. Uncovered patios at finished grade are exempt from setbacks as long as it does not encroach into any easement.

C. Floor area ratio (FAR) does not apply to any use.

D. Lot Area and Dimensions. Lot areas and lot dimension standards for residential uses are listed in the following table:

Lot Areas and Dimensions by Housing Type and Zone/Overlay
Residential Use	Zone/ Overlay	Lot Area	Lot Width/Depth
Single-Unit Detached Dwellings, Duplexes and Single-Room Occupancy	RL	Minimum area: 10,000 sq. ft.	Minimum lot width: 100 ft. Minimum lot depth: 100 ft.
	SLO	Minimum area: 4,000 sq. ft.	Minimum width: 40 ft. at front property line Minimum lot depth: 75 ft.
Townhomes	SLO	Minimum area: 4,000 sq. ft. for each unit	Minimum width: 40 ft. at front property line Minimum lot depth: 100 ft.

1. Exceptions:

a. Lots that abut the bulb of a cul-de-sac or knuckle corner: minimum width 30 feet at the front property line.

b. Corner lots must be at least five feet wider than the minimum lot width required in the zone or overlay, except for townhomes.

c. Other exceptions permitted in the underlying Residential District are also permitted.

E. Residential Density. The Treeline Master Planned Development implements BCP Policy 11-124 by providing capacity for a minimum of 128 housing units within Master Plan Areas 2 and 3, including at least 28 townhomes.

F. Maximum Lot Coverage. The following maximum lot coverage standards apply to all development within the residential districts as follows:

Residential Lot Coverage
Zone/Overlay	Maximum Lot Coverage
Low Density Residential (RL)	35%
Standard Lot Overlay (SLO)	45% for lots with two-story homes and two-story single-room occupancies 50% for lots with single-story homes, single-story accessory structures and single-story single-room occupancies

G. Maximum building height: 35 feet.

1. On-site surface water drainage may be addressed in the following ways. Alternatives may be approved by the City Engineer:

a. Roof drainage originating from residential properties may be conveyed to a public street and/or public storm drain collection and disposal system by subsurface piping, or curb weepholes.

b. Roof and surface drainage originating from residential properties may be conveyed to a private storm drain collection and disposal system located in a private tract or easement. The City may allow for private drainage systems in the public right-of-way if proven that maintaining the private utility on private property is unachievable and maintenance agreements are executed between the homeowners association and the City.

c. Roof drainage originating from residential properties may be commingled with drainage originating from public streets, private streets, and/or alleys and conveyed to a non-UIC system located within a private tract to be owned by a homeowners association with a maintenance agreement between the homeowners association and the City outlining operational and maintenance responsibilities. The City may allow for commingled drainage to be conveyed to a non-UIC system located in the public right-of-way if deemed appropriate by the City and maintenance agreements are executed between the homeowners association and the City.

d. Private drainage facilities must be contained within the same or previous subdivision phase, or a stormwater easement must be provided for the stormwater facilities.

e. Stormwater easements must be provided for public drainage facilities located on private property.

f. An owners association must be responsible for installing and maintaining any required landscaping in private facilities located in a private tract.

g. A stormwater maintenance agreement must be signed with the City prior to final plat of the subdivision phase. [Ord. NS-2487, 2023; Ord. NS-2443, 2022; Ord. NS-2431, 2022; Ord. NS-2423, 2021; Ord. NS-2365, 2020]