14 MEDIUM AND HIGH DENSITY RESIDENTIAL DISTRICTS MDR, HDR
Table 18.14.070 | |||
|---|---|---|---|
MDR | HDR | ||
A. | Minimum lot area per building site in square feet1 | 5,000 | 5,000 |
Minimum lot area in square feet for developments utilizing the "detached single-family dwelling" option of the city of Sumner design and development guidelines in square feet | 4,000 | 4,000 | |
Minimum lot area for zero lot line detached dwellings (per dwelling) | 3,000 | 3,000 | |
Minimum lot area for zero lot line dwellings (per dwelling) | N/A3 | N/A3 | |
B. | Maximum lot area per building site in square feet, detached single-family dwellings | 6,0004 | 6,0004 |
C. | Maximum development density in dwelling units per net acre | 22 | 25 |
D. | Minimum lot width in feet | 50 | 50 |
Minimum lot width for developments utilizing the "detached single-family dwelling" option of the city of Sumner design and development guidelines in square feet | 40 | 40 | |
Minimum lot width for zero lot line detached dwellings | 30 | 30 | |
Minimum lot width for zero lot line dwellings | N/A3 | N/A3 | |
Minimum unit width for zero lot line dwellings | 16 feet interior units 20 feet end units | 16 feet interior units 20 feet end units | |
E. | Front, rear and interior side setbacks for duplexes and detached single-family dwellings: | ||
1. Front yard setback in feet | 10 | 10 | |
2. Rear yard setback in feet | 25 | 20 | |
3. Interior side yard setback in feet | 5 | 5 | |
4. Interior side yard setback for zero lot line detached single-family | 5 feet one side 0 feet one side | 5 feet one side 0 feet one side | |
F. | Front, rear and interior side setbacks for multifamily developments requiring design review shall be in compliance with the city of Sumner design and development guidelines | ||
G. | Street side yard setback in feet | 10 | 10 |
H. | Setbacks for zero lot line dwellings: | ||
1. Front yard setback from public street or private drive aisle for zero lot line dwellings in feet | 10 for building 5 for porch/stoop | 10 for building 5 for port/stoop | |
2. Rear yard setback in feet, zero lot line dwellings | 15 | 15 | |
3. Interior side yard between zero lot line dwellings in feet | 0 | 0 | |
4. Interior side yard adjacent to exterior property line of a zero lot line development in feet | 5 | 5 | |
5. Street side yard setback in feet | 10 | 10 | |
I. | Maximum building height in feet | 35 | 35 |
J. | Maximum lot coverage by percentage of net lot area | 35 | 45 |
K. | Maximum lot coverage zero lot line dwellings by percent of net lot area | N/A | N/A |
L. | Minimum street frontage in feet | 30 | 30 |
M. | Minimum street frontage zero lot line dwellings | N/A3 | N/A3 |
N. | Minimum setback from principal or minor arterial as designated in comprehensive plan | 25 | 25 |
O. | Maximum number of zero lot line dwellings that may be attached | 6 | 6 |
P. | Public garage development standards | ||
Front yard setback in feet | 0 | N/A | |
Rear yard setback in feet | 0 | N/A | |
Interior side yard in feet | 0 | N/A | |
Street side yard in feet | 0 | N/A | |
Maximum building height in feet | 45 | N/A | |
Lot coverage by percentage of net lot area | 90 | N/A | |
Q | Pipestem lot width, setbacks and building height shall be as provided in SMC § 18.12.070 for detached dwelling units | ||
1 Variation of Minimum Lot Size. Except for lots to be occupied by zero lot line dwelling units, lots created through full subdivision in the MDR and HDR zones must vary lot sizes in the following manner. A maximum of 60 percent of lots may be platted at the minimum allowed lot size (one and one-half times) and at least 20 percent of platted lots must not be less than 200 percent of the minimum allowed lot size (two times). For purposes of meeting this requirement, lot counts may be rounded to the nearest full lot. |
2 The minimum lot area for zero lot line single-family dwellings is defined as the minimum needed to accommodate the width and depth of the unit plus the required private open space for the lot. |
3 For zero lot line lots, the lot width and frontage may be as wide as the minimum required unit width, provided that the unit complies with building code, landscaping and open space requirements. |
4 Maximum lot area applies to all new lots created after March 1, 2023, except that critical areas and critical area buffers required to be protected under SMC Title 16 may be excluded from the lot area calculation. |
14 MEDIUM AND HIGH DENSITY RESIDENTIAL DISTRICTS MDR, HDR
Table 18.14.070 | |||
|---|---|---|---|
MDR | HDR | ||
A. | Minimum lot area per building site in square feet1 | 5,000 | 5,000 |
Minimum lot area in square feet for developments utilizing the "detached single-family dwelling" option of the city of Sumner design and development guidelines in square feet | 4,000 | 4,000 | |
Minimum lot area for zero lot line detached dwellings (per dwelling) | 3,000 | 3,000 | |
Minimum lot area for zero lot line dwellings (per dwelling) | N/A3 | N/A3 | |
B. | Maximum lot area per building site in square feet, detached single-family dwellings | 6,0004 | 6,0004 |
C. | Maximum development density in dwelling units per net acre | 22 | 25 |
D. | Minimum lot width in feet | 50 | 50 |
Minimum lot width for developments utilizing the "detached single-family dwelling" option of the city of Sumner design and development guidelines in square feet | 40 | 40 | |
Minimum lot width for zero lot line detached dwellings | 30 | 30 | |
Minimum lot width for zero lot line dwellings | N/A3 | N/A3 | |
Minimum unit width for zero lot line dwellings | 16 feet interior units 20 feet end units | 16 feet interior units 20 feet end units | |
E. | Front, rear and interior side setbacks for duplexes and detached single-family dwellings: | ||
1. Front yard setback in feet | 10 | 10 | |
2. Rear yard setback in feet | 25 | 20 | |
3. Interior side yard setback in feet | 5 | 5 | |
4. Interior side yard setback for zero lot line detached single-family | 5 feet one side 0 feet one side | 5 feet one side 0 feet one side | |
F. | Front, rear and interior side setbacks for multifamily developments requiring design review shall be in compliance with the city of Sumner design and development guidelines | ||
G. | Street side yard setback in feet | 10 | 10 |
H. | Setbacks for zero lot line dwellings: | ||
1. Front yard setback from public street or private drive aisle for zero lot line dwellings in feet | 10 for building 5 for porch/stoop | 10 for building 5 for port/stoop | |
2. Rear yard setback in feet, zero lot line dwellings | 15 | 15 | |
3. Interior side yard between zero lot line dwellings in feet | 0 | 0 | |
4. Interior side yard adjacent to exterior property line of a zero lot line development in feet | 5 | 5 | |
5. Street side yard setback in feet | 10 | 10 | |
I. | Maximum building height in feet | 35 | 35 |
J. | Maximum lot coverage by percentage of net lot area | 35 | 45 |
K. | Maximum lot coverage zero lot line dwellings by percent of net lot area | N/A | N/A |
L. | Minimum street frontage in feet | 30 | 30 |
M. | Minimum street frontage zero lot line dwellings | N/A3 | N/A3 |
N. | Minimum setback from principal or minor arterial as designated in comprehensive plan | 25 | 25 |
O. | Maximum number of zero lot line dwellings that may be attached | 6 | 6 |
P. | Public garage development standards | ||
Front yard setback in feet | 0 | N/A | |
Rear yard setback in feet | 0 | N/A | |
Interior side yard in feet | 0 | N/A | |
Street side yard in feet | 0 | N/A | |
Maximum building height in feet | 45 | N/A | |
Lot coverage by percentage of net lot area | 90 | N/A | |
Q | Pipestem lot width, setbacks and building height shall be as provided in SMC § 18.12.070 for detached dwelling units | ||
1 Variation of Minimum Lot Size. Except for lots to be occupied by zero lot line dwelling units, lots created through full subdivision in the MDR and HDR zones must vary lot sizes in the following manner. A maximum of 60 percent of lots may be platted at the minimum allowed lot size (one and one-half times) and at least 20 percent of platted lots must not be less than 200 percent of the minimum allowed lot size (two times). For purposes of meeting this requirement, lot counts may be rounded to the nearest full lot. |
2 The minimum lot area for zero lot line single-family dwellings is defined as the minimum needed to accommodate the width and depth of the unit plus the required private open space for the lot. |
3 For zero lot line lots, the lot width and frontage may be as wide as the minimum required unit width, provided that the unit complies with building code, landscaping and open space requirements. |
4 Maximum lot area applies to all new lots created after March 1, 2023, except that critical areas and critical area buffers required to be protected under SMC Title 16 may be excluded from the lot area calculation. |