Chapter 17.60
ZONING STANDARDS TABLES

Sections:

17.60.010    Zoning standards, tables and interpretation.

17.60.020    Residential development standards.

17.60.030    Residential/commercial zone development standards.

17.60.040    Commercial and industrial development standards.

17.60.010 Zoning standards, tables and interpretation.

(1) Standards Established. The tables in this chapter contain density dimension standards and other limitations for the various zones. Additional development requirements found in these tables not related to zoning will also apply. Additional performance standards that could apply include but are not limited to those found in SMC Title 16 and Chapters 17.90 through 17.154 SMC.

(2) Tables. There are three separate zoning tables dealing with the following general land use categories and zones:

(a) Residential (SR 12.4, SR 9.6, SR 7.0, SR 5.0 and MR);

(b) Residential and commercial (TN, MB-I and MB-II); and

(c) Commercial and industrial (NB, GC, LI and GI).

(3) Interpretation of Zoning Tables. Development standards are listed under each zone and headings are listed at the left of the standard. The table cells contain the minimum and in some cases maximum requirements of the zone. The small number (superscript) in a cell or on a heading indicates additional requirements or detailing information which is not able to fit in the table. Development conditions referenced in the superscript are listed by number below each table. A blank cell indicates there are no specific requirements. (Ord. 1294 § 18, 2011).

17.60.020 Residential development standards.

(1) Development Standards Table – Residential Zones.

 

	SR 12.4	SR 9.610, 11	SR 7.0	SR 5.0	MR
Density: maximum dwelling unit per gross acre. Density standards are not subject to the variance procedure. Base Standard •    PRD review •    Cottage	3.5 4 10	4 4 10	6 6 10	102 N/A 10	201
Lot Area: minimum square feet for subdivision. Base Standard •    PRD review •    Cottage	12,400 10,000 3,000	9,600 7,000 3,000	7,000 5,000 3,000	5,000 N/A 3,000	20,000
Minimum Lot Width Base Standard •    PRD •    Cottage	100' 85' 50'	75' 60' 50'	60' 50' 50'	50' N/A 50'	100'
Minimum Lot Depth Base Standard •    PRD •    Cottage	100' 100' 60'	100' 80' 60'	80' 75' 60'	75' N/A 60'	200'
Front Setback Base Standard4 •    PRD •    Cottage •    Detached Accessory Structure5	20 – 30'9 25' 10' 25'	20 – 30'9 10' 10' 25'	20' 10' 10' 25'	10 – 20'3, 9 N/A 10' 20'	20'3     20'
Rear Setback Base Standard4 •    PRD •    Cottage •    Detached Accessory Structure3 •    Congregate Care	25' 25' 10' 5'	25' 20' 10' 10'	20' 15' 10' 5'	15'3 N/A 10' 5'	15'3     5'   20'
Side Setback Base Standard4 •    PRD   •    Cottage •    Detached Accessory Structure5 •    Congregate Care	15' 20' combined 5' each side 10'	10' 15' combined 5' each side 5'	10' 15' combined 5' each side 5' 5'	5'3 N/A   5' 5'	25'3       5' 10'
Corner Lot Side Setback Base Standard4 •    PRD •    Cottage •    Detached Accessory Structure	15' 15' 10' 10'	15' 15' 10' 5'	15' 15' 10' 5'	15' N/A 10' 5'	25'
Maximum Height Base Standard4 •    PRD •    Cottage •    Detached Accessory Structure	30' 30' 30' 20'	30' 30' 30' 20'	30' 30' 30' 20'	30' N/A 30' 20'	30'
Percent of Lot Coverage Base Standard •    PRD •    Cottage •    Detached Accessory Structure5, 6	307 40 40 107	35 40 40 10	40 40 40 10	50 N/A 40 10	40
Maximum Building Area Cottage	1,200 sq. ft.	1,200 sq. ft.	1,200 sq. ft.	1,200 sq. ft.
Minimum Driveway Length Base Standard PRD Cottage	None None 20'	None 20' 20'	None 20' 20'	20'8 N/A 20'

(2) Development Conditions – Residential Zones.

1. In the MR zone, single-family detached use is limited to 10 du/gross acre with a land area of 4,500 square feet per unit, duplex use is limited to 12 du/gross acre with a land area of 7,000 square feet, and townhome use is limited to 12 du/gross acre with a land area of 2,000 square feet for end units, and 1,800 square feet for interior units. Multiple structures may occur on a legal lot with a minimum of 20,000 square feet.

2. In the R 5.0 zone, duplexes and townhouses are limited to 10 dwelling units per gross acre with a land area of 7,000 square feet. Townhome use is limited to 12 du/gross acre with a minimum land area of 2,000 square feet for end units, and 1,800 square feet for interior units. Multiple structures may occur on a legal lot with a minimum of 7,000 square feet.

3. The front, rear and side yard setbacks for attached dwellings in these zones are not intended to be applied to each individual dwelling when there are multiple buildings on a site. Rather they are meant to be used to establish the minimum dimensional requirements for the perimeter of the housing development.

4. Setbacks are applicable to the primary structure, attached accessory structures and detached accessory dwelling units.

5. Excludes residential accessory structures.

6. Ten percent additional coverage is allowed for detached accessory structure in addition to the allowance for the primary structure. Coverage for accessory dwelling units may be increased by 15 percent over the base coverage.

7. Greenhouses on farms within the SR 12.4 zone are excluded from maximum coverage calculations.

8. A 20-foot-long driveway from the front or rear is required in the SR 5.0 zone.

9. No two adjacent dwellings that front the same street shall have the same front yard setback unless otherwise approved by the city council. The front yard setback shall be randomly arranged with an equal number of dwellings at each increment. Setbacks shall be 20, 25 and 30 feet in the SR 12.4 and SR 9.6 zones. In the SR 5.0 zone, setbacks and structure placement shall be varied to accommodate the requirement for a 20-foot-long driveway from the front or rear in addition to the varied setback.

10. The community development director or hearing examiner may reduce lot sizes to a minimum of 8,000 square feet and/or widths to a minimum of 60 feet for the fewest number of lots necessary if development under the city’s regular standards precludes the development from meeting minimum urban net density as established under the Growth Management Act. In addition, lots in plats vested to Snohomish County standards prior to annexation may have lot size reduced to 5,000 square feet, lot width reduced to 50 feet and lot depth reduced to 75 feet; provided, that overall density of the plat conforms to the land use element of the Stanwood Comprehensive Plan.

11. The community development director may approve reduced side and rear setbacks of five feet when the adjacent tract is devoted to open space, recreation space, or storm water detention. In addition, development on lots in plats vested to Snohomish County standards prior to annexation may conform to SR 5.0 zoning district standards for setbacks. (Ord. 1294 § 18, 2011).

17.60.030 Residential/commercial zone development standards.

(1) Development Standards Table – Residential/Commercial Zones.

	TN	MB-I	MB-II
Maximum Residential Density. Density standards are not subject to the variance procedure. •    Single-family •    Duplex •    Townhouse •    Multifamily	15 du/ac7 for all unit types	10 du/ac 20 du/ac	20 du/ac 20 du/ac
Minimum Residential Density	10 du/ac7
Lot Area: minimum square feet for subdivision.
Base Standard	None	2,500	5,000
Single-family	5,000
Duplex	6,000
Townhouse
•    End lot	2,000	2,000	2,000
•    Interior lot	1,800	1,800	1,800
Multifamily	20,000		7,000
Minimum Lot Width
Base Standard	50'	35'	35'
Minimum Lot Depth
Base Standard	70'	75'	75'
Minimum Front Setback1, 2
Base Standard	0	0	0
Detached Accessory Structure	10'	10'	10'
Attached Dwelling	0	0	0
Rear Setback1, 2, 5
Base Standard	25'	25'11	25'11
Detached Accessory Structure	15'	15'11	15'11
Side Setback1, 2	58, 9	0	0
Base Standard	10'	0	5'4
Detached Accessory Structure	5'	0	5'
Maximum Height
Base Standard	30'3	35'3	35'3
Detached Accessory Structure	20'
Maximum Building Coverage10
Base Standard	60%10	90%	90%

(2) Development Conditions – Residential/Commercial Zones.

1. The front, rear and side yard setbacks for structures in these zones are not intended to be applied to each individual building when there are multiple buildings on a site. Rather, they are meant to be used to establish the minimum dimensional requirements for the perimeter of the development.

2. Setbacks are applicable to the primary structure and attached accessory structures.

3. Height may be increased to 40 feet for hotels, bed and breakfast accommodations, boarding houses, residential units over retail/office/personal service uses in the MB-I and MB-II zones and to 40 feet for multifamily and mixed use in the TN zone.

4. Calculated based on the entire parcel in TN.

5. Rear setbacks of 15 feet are required for residential uses. Setbacks may be reduced when property is served by an alley.

6. Applies when adjacent to commercial.

7. Minimum and maximum density in the TN zone are calculated based on the total number of dwelling units of all types per gross acre. The density for each housing type within a project is determined by the minimum lot size.

8. Side setback for commercial is zero.

9. Side setback for attached townhouse units and multifamily is zero for interior units and 10 feet for end units. Side setback for utilities and public facilities is 20 feet.

10. For automobile service stations the cross-section areas of service station canopy supports where they meet the ground shall be measured as coverage for the purposes of determining maximum lot coverage, and also shall be used for measurement of setback requirements.

11. Twenty-five feet with an alley. Fifteen feet with no alley. (Ord. 1294 § 18, 2011).

17.60.040 Commercial and industrial development standards.

(1) Development Standards Table – Commercial and Industrial Zones.

 

	NB	GC	LI	GI
Lot Area: minimum square feet for subdivision. Base Standard	6,000	10,000	20,000	1 acre
Minimum Lot Width Base Standard	50'	70'	80'	100'
Minimum Lot Depth Base Standard	70'	80'	100'	200'
Front Setback1, 2, 7 Base Standard Detached Accessory Structure	10' 10'	25' 25'	25' 25'	25' 25'
Rear Setback1, 2, 7 Base Standard Detached Accessory Structure	25' 15'	25' 5'	5'4 5'	35'4 5'
Side Setback1, 2, 7 Base Standard Detached Accessory Structure	10' 5'	10' 5'	5'4 5'	25'4 5'
Maximum Height Base Standard Detached Accessory Structure	30' 20'	35'	35'	35'6 30'
Maximum Building Coverage3, 7 Base Standard Detached Accessory Structure	40% 10%	60% 10%	60%	35%5 10%

(2) Development Conditions – Commercial and Industrial Zones.

1. The front, rear and side yard setbacks for structures in these zones are not intended to be applied to each individual building when there are multiple buildings on a site. Rather, they are meant to be used to establish the minimum dimensional requirements for the perimeter of the development.

2. Setbacks are applicable to the primary structure and attached accessory structures.

3. Ten percent additional coverage is allowed for detached accessory structures in the NB, GC, and GI zones in addition to the allowance for the primary structure.

4. Where an industrial or manufacturing use abuts a residential zone, a 25-foot setback is required in the LI zone and a 50-foot setback is required in the GI zone.

5. Coverage may be increased to 40 percent for wholesale, moving van/storage and warehouse operations, 50 percent for petroleum products distribution and storage and school bus maintenance facilities, and 65 percent for mini-warehouse.

6. Height may be increased to 50 feet for food processing plants, wholesale operations, warehousing operations, and freight distribution centers.

7. For automobile service stations, the cross-section areas of service station canopy supports where they meet the ground shall be measured as coverage for the purposes of determining maximum lot coverage, and also shall be used for measurement of setback requirements. (Ord. 1294 § 18, 2011).