a. 
Subdivision types.
New residential subdivisions are classified into conventional, cluster, and village subdivision types. Development of any subdivision type permitted in the base zoning district is at the option of the applicant. No subdivision type is mandatory in any zoning district unless it is the only permitted subdivision type within the district. Refer to Section 39.02.004, Base Residential Districts, for lot density and dimension standards related to each permitted subdivision type.
b. 
Permitted base residential districts.
Table 39.04.017-1, Permitted Subdivision Types by Residential District, states the subdivision types that are permitted in each residential zoning district.
Table 39.04.017-1
Permitted Subdivision Types by Residential District
"P" = Permitted | "NP" = Not Permitted | "—" = Not Applicable
RE
SF-1
SF-2
MDR
HDR
Conventional
P
P
P
—
P
Cluster
P
P
P
—
—
Village
—
—
—
P
P
(Ordinance 2023-O0054 adopted 5/9/2023)
A conventional residential subdivision is a pattern of development that allows residential uses and that provides the majority of property owners with open space on their own property. A conventional subdivision consists of mostly single-family detached dwelling units developed in accordance with the conventional development standards of Section 39.02.004, Base Residential Districts. Minimum lot size is a primary factor in the character of a conventional subdivision. See Figure 39.04.018-1, Illustrative Conventional Subdivision.
Figure 39.04.018-1
Illustrative Conventional Subdivision
(Ordinance 2023-O0054 adopted 5/9/2023)
a. 
Generally.
A cluster subdivision consists of single-family detached dwelling units developed in accordance with the cluster development standards, established in the base zoning district, with smaller lots that are clustered together in order to provide for additional common open spaces. Often, the common open space is set aside for resource features such as parks, recreation areas, woodlands, creeks and streams, and their riparian areas, floodplains, etc. Therefore, cluster development may be used to preserve environmental resources by clustering development on the buildable portions of the property. See Figure 39.04.019-1, Illustrative Cluster Subdivision.
b. 
Open space.
Common open space shall, to the greatest extent practicable, be interconnected with other open space areas, greenways, and trail systems (if provided) within the development and on abutting lands where such integration is practical and does not materially compromise the resource value of the protection areas.
c. 
Integration of design.
Open space shall be integrated into the development design so as to bring access to significant open space to the maximum number of properties; provided, however, that physical access may be limited if such limitation would materially enhance natural resource management. Subdivisions intending to use the Cluster regulations shall show the area to be dedicated as common open space, to satisfy the open space requirement, within the preliminary plat boundary, or final plat boundary if a preliminary plat is not required.
d. 
Increased lot area or setback.
Where located across a local street from an existing conventional development, a cluster subdivision shall have one of the three characteristics listed below:
1. 
Lots on the perimeter shall be equal to or greater than the lot area and width of the conventional lots across the street;
2. 
Lots may side into the local street and be sized in accordance with cluster requirements; or
3. 
The cluster subdivision may back into the local street and provide a Type B bufferyard, as established in Section 39.03.016, Bufferyard Landscaping, along the street.
Figure 39.04.019-1
Illustrative Cluster Subdivision
(Ordinance 2023-O0054 adopted 5/9/2023; Ordinance 2025-O0095 adopted 8/18/2025)
a. 
Generally.
A village subdivision allows four housing types and utilizes commonly-owned areas as organizing features. See Figure 39.04.020-1, Illustrative Village Subdivision.
b. 
Housing type integration.
Different housing types within a village subdivision may be integrated together or may be located within separate pods with the required open space providing a buffer between the housing types.
c. 
Bufferyard.
Where multiple-family dwellings are proposed to abut single-family detached dwellings or duplexes within the same development and zoning district, a Type A Bufferyard, in accordance with Section 39.03.016, Bufferyard Landscaping may be used to provide for enhanced compatibility between housing types.
d. 
Compatibility.
Where a village subdivision abuts, is adjacent to, or is located across a local street from existing housing, the housing types that are nearest or across the street shall be comparable to the existing housing types in terms of the housing type, scale, and method of access.
e. 
Access.
Lots shall take access to an interior street, alley, parking court, or shared driveway. If a perimeter street is also a local street, lots shall front on the perimeter street and may take access from it if the lots across the street also take access from the street.
f. 
Increased lot area.
Where located across a local street from an existing conventional development, a village subdivision shall have one of the three characteristics listed below:
1. 
Lots on the perimeter shall be equal to or greater than the lot area and width of the conventional lots across the street.
2. 
Lots may side into the local street and be sized in accordance with village requirement; or
3. 
The village subdivision may back into the local street shall and provide a Type B bufferyard, as established in Section 39.03.016, Bufferyard Landscaping, along the street.
Figure 39.04.020-1
Illustrative Village Subdivision
(Ordinance 2023-O0054 adopted 5/9/2023)