20.06.005 - Subdivision type.

All subdivisions shall be designed according to one of the subdivision types specified in this chapter. A single subdivision shall not incorporate more than one of the subdivision types unless specifically authorized by the plan commission.

(Ord. 06-24 § 3 (part), 2006).

20.06.010 - Suburban subdivision (SU)—Intent.

The Suburban subdivision is intended to be used as follows:

Allow for both subdivisions containing a small number of lots and no new public streets as well as subdivisions consisting of a larger number of lots and new public street extensions;

Permit residential developments that are consistent with adjoining subdivisions which have been more recently developed after the build-out of core neighborhoods;

Ensure that new subdivisions contain adequate street, bicycle, and pedestrian connectivity to adjacent neighborhoods as well as nonresidential activity centers; and

Facilitate development on parcels not characterized by significant environmental constraints as well as development on parcels not located next to existing subdivisions characterized by more grid-like street patterns.

(Ord. 06-24 § 3 (part), 2006).

20.06.020 - Suburban subdivision (SU)—Standards and effect on development standards.

Prerequisite base zoning district: RE, RS, RC, RH, RM or MH

Maximum parent tract: 3 acres

Minimum open space:

For subdivisions of at least 25 lots and no more than 49 lots, a minimum of 10% of the gross acreage must be identified as common open space on the plat

For subdivisions of at least 50 lots and no more than 74 lots, a minimum of 15% of the gross acreage must be identified as common open space on the plat

For subdivisions of at least 75 lots, a minimum of 20% of the gross acreage must be identified as common open space on the plat

Maximum block length: 1,000 feet

Cul-de-sac length: Cul-de-sacs are not permitted

Alternative transportation facilities:

Facilities required on both sides of internal streets and along adjoining streets

Facility type shall be governed by the bicycle and pedestrian transportation and greenways system plan

ROW dedication: Per master thoroughfare plan

Street width: Per master thoroughfare plan

On-street parking:

Not required

Where provided, must meet standards of Chapter 20.07, OG On-street Parking Standards

Alley standards: Alleys are not required

Minimum tree plot width: Per master thoroughfare plan

Minimum sidewalk/sidepath width: Per master thoroughfare plan

Effect on Development Standards

All standard zoning district development standards apply.

(Ord. 06-24 § 3 (part), 2006).

(Ord. No. 09-12, 9-16-2009)

20.06.030 - Conservation subdivision (CS)—Intent.

The conservation subdivision is intended to be used as follows:

Facilitate clustered development of land while ensuring maximum protection of environmentally sensitive features and set asides of significant common open space;

Provide for necessary connectivity to adjoining street systems to provide adequate levels of emergency service and traffic mitigation;

Allow very limited development for those parcels containing environmental constraints such as mature tree stands, karst geology, steep slopes, and water resources;

Fulfill the growth policies plan's policy recommendations concerning Nurture Environmental Integrity; and

Provide subdivision design controls that ensure the space-efficient installation of utilities, street and sidewalk network, as well as the placement of individual building lots.

(Ord. 06-24 § 3 (part), 2006).

20.06.040 - Conservation subdivision (CS)—Standards and effect on development standards.

Prerequisite base zoning district: RE or RS

Minimum parent tract: 5 acres (217,800 square feet)

Minimum open space: 50%

Maximum block length: 1,760 feet (1/3 mile)

Cul-de-sac length: Cul-de-sacs are not permitted

Alternative transportation facilities:

Facilities required on both sides of internal streets and along adjoining streets

Facility type shall be governed by the bicycle and pedestrian transportation and greenways system plan

ROW dedication:

Per master thoroughfare plan

ROW width may be reduced up to 10 feet to mitigate environmental impacts

Street width:

Per master thoroughfare plan

Street widths narrower than indicated on the master thoroughfare plan may be allowed in order to mitigate environmental impacts

Alleys: Not permitted

On-street parking:

Not permitted in the RE zoning district

Not required in the RS zoning district

Minimum tree plot width:

5 feet

Tree plot may be reduced to a 2-foot grass separation to allow for preservation of existing quality vegetation

Minimum sidewalk/sidepath width: Per master thoroughfare plan

Effect on Development Standards

RE Zoning District:

Lot area may be reduced to 20,000 square feet

Lot width may be reduced to 100 feet

Within 200 feet of the property line of the parent tract, the size of subdivided lots shall not be less than 50% of the minimum lot size required by the zoning district

RS Zoning District:

Lot area may be reduced to 4,200 square feet

Lot width may be reduced to 50 feet

Side setback may be reduced to 8 feet, regardless of the number of stories

Within 100 feet of the property line of the parent tract, the size of subdivided lots shall not be less than 75% of the minimum lot size required by the zoning district.

(Ord. 06-24 § 3 (part), 2006).

(Ord. No. 09-12, 9-16-2009)

20.06.050 - Traditional subdivision (TD)—Intent.

The traditional subdivision is intended to be used as follows:

Ensure the creation of a grid-like street and alley system that allows for maximum connectivity to adjacent neighborhoods as well as nonresidential activity centers;

Create a pedestrian-scale streetscape design featuring narrow street profiles, on-street parking, building forward orientation, short block lengths, and decorative street lighting;

Facilitate compatible development of parcels located next to existing subdivisions characterized by more grid-like street patterns;

Facilitate development on properties not characterized by environmental constraints;

Provide a range of development options (including mixed uses, affordable housing, accessory dwelling units) where warranted by adjacent development patterns; and

Facilitate fulfillment of the growth policies plan's policies entitled compact urban form, mitigate traffic, and conserve community character.

(Ord. 06-24 § 3 (part), 2006).

20.06.060 - Traditional subdivision (TD)—Standards and effect on development standards.

Prerequisite base zoning district: RS, RC, RM, CL or CG

Minimum parent tract: 3 acres

Minimum open space: 5%

Cul-de-sac length: Cul-de-sacs are not permitted

Alternative transportation facilities:

Facilities required on both sides of internal streets and along adjoining streets

Facility type shall be governed by the bicycle and pedestrian transportation and greenways system plan

ROW dedication:

Per master thoroughfare plan

ROW may be reduced to match adjacent streets

Street width:

Per master thoroughfare plan

Street widths may be reduced upon approval of the city engineer and fire chief

On-street parking: Required on at least one side of all streets

Alley standards: Minimum of 67% of lots shall be served by alleys

Minimum tree plot width:

Residential areas: 7 feet

Nonresidential areas: 0 feet, tree grates required

Standard may be varied to match condition of adjacent property

Minimum sidewalk width:

Residential areas: 5 feet

Commercial areas: 8 feet

Maximum block length: 800 feet

Effect on Development Standards

RS and RC zoning districts:

Lot area may be reduced to 5,000 square feet

Lot width may be reduced to 50 feet

Side setback may be reduced to 6 feet, regardless of the number of stories

Lots may use a front build-to line of 15 feet

Impervious surface coverage may be increased to 50%

RM, CL and CG zoning districts:

Lot area may be reduced to 4,200 square feet

Lot width may be reduced to 50 feet

Side setback may be reduced to 4 feet, regardless of the number of stories

Lots may use a front build-to line of 15 feet

Impervious surface coverage may be increased to 65%

Residential density may be increased to 20 units per acre.

(Ord. 06-24 § 3 (part), 2006).

(Ord. No. 09-12, 9-16-2009)

20.06.070 - Commercial/industrial subdivision (CI)—Intent.

The commercial/industrial subdivision is intended to be used as follows:

Allow for both minor subdivisions containing a small number of lots and no new public streets, as well as major subdivisions consisting of a larger number of lots and new public street extensions;

Permit all nonresidential developments that are compatible with their surroundings;

Ensure that new subdivisions contain adequate street, bicycle, and pedestrian connectivity to adjacent neighborhoods, as well as nonresidential activity centers; and

Facilitate development on parcels not characterized by significant environmental constraints.

(Ord. 06-24 § 3 (part), 2006).

20.06.080 - Commercial/industrial subdivision (CI)—Standards and effect on development standards.

Prerequisite base zoning district: CL, CG, CD, CA, IG, BP, IN, MD or QY

Minimum parent tract: N/A

Minimum open space: N/A

Minimum cul-de-sac length: 200 feet

Maximum cul-de-sac length: 600 feet

Maximum lots per cul-de-sac: N/A

Alternative transportation facilities:

Facilities required on both sides of internal streets and along adjoining streets

Facility type shall be governed by the bicycle and pedestrian transportation and greenways system plan

ROW dedication: Per master thoroughfare plan

Street width: Per master thoroughfare plan

On-street parking: Not required

Alley standards: Alleys are not required

Minimum tree plot width: Per master thoroughfare plan

Minimum sidewalk width: Per master thoroughfare plan

Maximum block length: 1,320 feet (1/4 mile)

Effect on Development Standards

All base zoning district development standards apply.

(Ord. 06-24 § 3 (part), 2006).

(Ord. No. 09-12, 9-16-2009)