Chapter 17.10
SINGLE-FAMILY ZONE (MPR-SF)

Sections:

17.10.010    Purpose.

17.10.020    Permitted uses, lot size and density.

17.10.030    Conditional uses, lot size and density.

17.10.040    Height restrictions.

17.10.050    Bulk and dimensional requirements.

17.10.060    Commercial forest land buffers.

17.10.070    Accessory dwelling units prohibited.

17.10.080    Conceptual site plan requirement.

17.10.010 Purpose.

This zone recognizes, maintains and promotes single-family residential areas within the MPR, and provides opportunities for reasonably priced housing. [Ord. 8-99 § 3.101]

17.10.020 Permitted uses, lot size and density.

The following uses, lot sizes, and densities are permitted within the MPR-SF zone:

(1) Single-family detached dwelling units;

(2) Home-based business;

(3) Accessory uses and structures, such as garages, carports, storage buildings and similar structures supporting the residential environment, when clearly subordinate and supplemental to a permitted use;

(4) Trails, parks, open space and playgrounds approved through a platting or development review process;

(5) Minimum lot areas of 5,000 square feet approved through a platting process and not to exceed a gross density of four dwelling units per acre. Existing subdivisions shall not be further subdivided. [Ord. 8-99 § 3.102]

17.10.030 Conditional uses, lot size and density.

The following uses, lot sizes, and densities are permitted conditionally in the MPR-SF zone:

(1) Trails, parks, open space and playgrounds if not part of a platting or development review process;

(2) Minimum lot areas of 3,500 square feet if approved through a platting process and not to exceed a gross density of four dwelling units per acre. Existing subdivisions shall not be further subdivided;

(3) Single-family attached dwelling units including duplexes, triplexes and fourplexes as part of a new subdivision, not to exceed a gross density of four dwelling units per acre. Setbacks and impervious surface limits shall apply to the total lot or development parcel, not to the land allocated to any individual attached unit. For purposes of this division, “single-family attached” shall mean a townhouse style or side-by-side development, not stacked units;

(4) Fire stations; provided, that existing fire stations are allowed a one-time expansion of up to 30 percent in the size of the building footprint without going through a conditional use process;

(5) Above-ground electrical substations, sewage pump stations or treatment plants, and potable water storage tanks or facilities. [Ord. 3-18 § 2; Ord. 8-99 § 3.103]

17.10.040 Height restrictions.

No building or structure shall be erected, enlarged or structurally modified to exceed 35 feet in height. [Ord. 8-99 § 3.104]

17.10.050 Bulk and dimensional requirements.

Bulk and dimensional requirements shall be as provided in Table MPR-SF. For projects proposing single-family attached units, the requirements shall apply to the total lot, not to the land allocated to any individual attached unit. [Ord. 8-99 § 3.105]

17.10.060 Commercial forest land buffers.

New developments on property located adjacent to lands designated commercial forest are subject to the requirements of the county’s Forest Lands Ordinance No. 01-0121-97. Section 7.20(1) of the Forest Lands Ordinance allows modification of the standard 250-foot setback from adjacent commercial forest lands. Within the MPR-SF zone, the following limitations shall apply to any agreement to modify the standard buffer or setback requirement for development adjacent to commercial forest land.

(1) An average setback of at least 200 feet shall be maintained.

(2) Critical areas and critical area setbacks or buffers shall not be included in the calculation or areas used to establish the 200-foot average setback distance.

(3) A minimum setback of 150 feet shall be maintained.

(4) Natural vegetation and forested areas shall be maintained in a native state, but may be managed to ensure healthy reforestation and avoid hazards to life or property.

(5) The boundaries of the buffer or setback area shall be visibly marked during and following development.

(6) When established through a platting process, the buffer or setback area shall be designated on the face of the plat as a separate open space tract. [Ord. 8-99 § 3.106]

17.10.070 Accessory dwelling units prohibited.

Accessory dwelling units shall not be allowed in the MPR-SF zone. [Ord. 8-99 § 3.107]

17.10.080 Conceptual site plan requirement.

Prior to preliminary plat approval in the south area designated on the Comprehensive Plan Land Use Map as requiring a “conceptual site plan,” a plan shall be submitted to the department of community development showing a concept for development of the entire south area. The conceptual site plan shall illustrate at least one development option for the entire south area and shall at a minimum address required buffers, road layout, and potential phasing. [Ord. 8-99 § 3.108]

Table MPR-SF

Density

Minimum Lot Area

Minimum Lot Width

Front Yard Setback

Side Yard Setback

Rear Yard Setback

Maximum Impervious Surface

4 DU/AC

5,000 sq. ft.

40′

20′

5′

5′

45%

4 DU/AC

3,500 sq. ft.
(conditional use required)

40′

20′

5′

5′

2,250 sq. ft. for any lot less than 5,000 sq. ft. in size