The traditional subdivision type is intended to provide a development option with the following features:
(A) 
Land use: mixed use, with majority being residential.
(B) 
Applicability: subdivisions containing 50 or more lots and new streets and alleys.
(C) 
Pedestrian Network.
(1) 
Safe, efficient, and highly accessible pedestrian circulation within the subdivision.
(2) 
Safe, efficient, and easy access to perimeter streets.
(D) 
Vehicular Network.
(1) 
Creation of grid-like street and alley system that allows for maximum connectivity to adjacent neighborhoods and nonresidential activity centers.
(2) 
Frequent use of alleys and garage access via alleys.
(3) 
Short blocks.
(4) 
Small radius corners.
(E) 
Site Feature Preservation.
(1) 
Strive to save existing quality tree stands.
(F) 
Incentives.
(1) 
Increased density for traditional subdivision design.
(2) 
Density bonus for anti-monotony.
(3) 
Density bonus for added open space.
(Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008; UDO § 6.08)
(A) 
Base zoning: R3, R4 and TR.
(B) 
Minimum parent tract: 40 acres.
(C) 
Maximum parent tract: 200 acres.
(D) 
Special Qualifications.
(1) 
Subdivision shall be designed around pedestrian-scale streetscape featuring narrow street profiles, on-street parking, building forward orientation, short blocks, and decorative street lighting.
(Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008; UDO § 6.09)
The intensity and density bonus listed in the table below preempts the corresponding development standards listed for each zoning district in Division II of this title, Zoning Districts, when a subdivision is designed and implemented using the anti-monotony standard in Chapter 18.156 AMC, Design Standards.
Only the zoning districts shown in the table below are applicable for an intensity and/or density bonus.
Traditional Subdivision Intensity and Density Bonus for Anti-Monotony Compliance
Zoning District
R3
R4
TR
Lot Standards
Min. Lot Area
6,000 sq. ft.
5,500 sq. ft.
5,000 sq. ft.
Min. Average Lot Area
6,500 sq. ft.
6,500 sq. ft.
5,500 sq. ft.
Min. Lot Width
50 ft.
45 ft.
40 ft.
Setback Standards
Min. Front Setback
20 ft.
20 ft.
15 ft.
Min. Side Setback
5 ft.
5 ft.
5 ft.
Min. Rear Setback
15 ft.
20 ft.
15 ft.
Min. Building Separation
10 ft.
10 ft.
10 ft.
Other Standards
Max. Lot Coverage
65%
60%
65%
Min. Dwelling Unit Size
1,000 sq. ft.
1,000 sq. ft.
1,000 sq. ft.
Min. Average Dwelling Unit Size
1,400 sq. ft.
1,400 sq. ft.
1,400 sq. ft.
Maximum Density
5.2 du/acre
6 du/acre
6.2 du/acre
(Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008; UDO § 6.10)
(A) 
Required open space: 15 percent.
(B) 
Minimum perimeter landscaping: 25 feet along perimeter streets that shall be common area; 10 feet along all other perimeters; zero feet if abutting another TD or a TN subdivision.
(C) 
Maximum density: eight units to the acre.
(D) 
Minimum block length: 200 feet.
(E) 
Maximum block length: 660 feet.
(F) 
Average block length: between 300 and 500 feet.
(G) 
Cul-de-sac length: cul-de-sacs not permitted.
(H) 
Minimum ROW on local streets: 60 feet.
(I) 
Design speed: 20 to 30 miles per hour.
(J) 
Minimum street width: 38 feet.
(K) 
Curb: vertical curb required.
(L) 
On-street parking: required on both sides of street.
(M) 
Minimum tree plot width: five feet in residential areas; zero feet in nonresidential areas.
(N) 
Minimum Sidewalk/Sidepath Width.
(1) 
Five-foot sidewalks/sidepaths along both sides of streets. If the sidewalk/sidepath is curb-faced, the sidewalk width shall be six feet.
(2) 
All concrete joints shall be saw-cut.
(Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008; UDO § 6.11)
(A) 
Development name: AMC § 18.156.040.
(B) 
Dedication of public improvement: AMC § 18.156.050.
(C) 
Easement: AMC § 18.156.060.
(D) 
Entryway feature: AMC § 18.156.070.
(E) 
Erosion control: AMC § 18.156.080.
(F) 
Floodplain: AMC § 18.156.090.
(G) 
Incentive: AMC § 18.156.100.
(H) 
Lot establishment: AMC § 18.156.120.
(I) 
Monument and marker: AMC § 18.156.150.
(J) 
Open space: AMC § 18.156.160.
(K) 
Owners' association: AMC § 18.156.170.
(L) 
Pedestrian network: AMC § 18.156.180.
(M) 
Perimeter landscaping: AMC § 18.156.190.
(N) 
Prerequisite standards: AMC § 18.156.200.
(O) 
Stormwater standards: AMC § 18.156.210.
(P) 
Street and access: AMC § 18.156.220, § 18.156.230, § 18.156.240, § 18.156.250, § 18.156.270 and § 18.156.290.
(Q) 
Street lighting: AMC § 18.156.310.
(R) 
Surety: AMC § 18.156.330.
(S) 
Utility standards: AMC § 18.156.340.
(Ord. 1746-2023; Ord. 1352-2010; Ord. 1286-2008; UDO § 6.11)