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Chapter 180 – PLATES
180.05 User Guide
Plate 1 One-Way Traffic – Standard Size Stall (8.5' x 18.5')
Plate 2 Two-Way Traffic – Standard Size Stall (8.5' x 18.5')
Plate 3 One-Way Traffic – Compact Stall (8' x 16')
Plate 4 Two-Way Traffic – Compact Stall (8' x 16')
Plate 5 Repealed
Plate 6 Repealed
Plate 7 Repealed
Plate 8 Repealed
Plate 8A Parking Area Design Using Street for Circulation
Plate 9 Allowable Signage
Plate 10 Intrusions into Required Setback Yards
Plate 11 Outdoor Use Activity and Storage Areas
Plate 12 Pedestal Signs
Plate 13 Monument Signs
Plate 13A Pole Signs
Plate 14 Driveway Configuration for Detached Dwelling Units
Plate 14A Driveway Setbacks on “Panhandle” Lots
Plate 14B Driveway Widths in Required Front and Rear Yards
Plate 15 Measuring 15 Percent Slopes
Plate 16 Determining Stream Buffers
Plate 16A Stream Buffers
Plate 17A Calculating Average Building Elevation, Option 1
Plate 17B Calculating Average Building Elevation, Option 2
Plate 18 Adjoining Properties
Plate 19 Calculating Average Parcel Depth
Plate 20 Turnaround Space
Plate 21 Dwelling Units “Served” and Not “Served” by a Vehicular Access Easement or Tract
Plate 22 WD II North Property Line Yard and Height of Structure
Plate 23 Calculating Floor Area for Basements (Detached Dwelling Units in Low Density Zones)
Plate 24 Required Front Yard Averaging
Plate 25 Piped Systems within Buffer Setbacks
Plate 26 Wetland Field Data Form
Plate 27A Shoreline View Corridor
Plate 27B Shoreline View Corridor
Plate 27C Shoreline View Corridor
Plate 28 North Property Line – Waterfront District (WD) Zones
Plate 29 Driveway Easement
Plate 30 Rooftop Appurtenances – Screening with Roof Forms – Examples
Plate 31 Rooftop Appurtenances – Allowable Height and Coverage
Plate 32 Affordable Housing Incentives – Multifamily
Plate 33 View Corridor Height Restriction TL 3A
Plate 34A. 119th Avenue NE and NE 130th Place Street Improvements in TL 1A and TL 1B
B. 123rd Avenue NE and NE 120th Street Improvements in TL 5 Zone
C. 118th Avenue NE Street Improvements in TL 10B Zone
D. The Designated “Circulator” in the Totem Lake Neighborhood
E. Pedestrian Circulation in Totem Lake
F. Vehicular Access and Pedestrian Pathway Concept for TL 5
G. Internal Access Roads and Through-Block Pathway Concept for TL 6B
H. Pedestrian Circulation in the CBD
I. Pedestrian Circulation in the JBD
J. Pedestrian Circulation in the NRHBD
K. Through-Block Pathways Concept for RHBD
Plate 35 Repealed
Plate 36 Repealed
Plate 37 Stand-Alone Housing Areas
Plate 38 Measuring Maximum Horizontal Facade
180.05 User Guide
To graphically display or explain a regulation, various provisions in this code refer the user to particular plates. This chapter contains those plates arranged numerically.
Plate 1
ONE-WAY TRAFFIC – STANDARD SIZE STALL (8.5' X 18.5')
Parking Angle
Single Loaded Aisle
Double Loaded Aisle
A
B
C
D
*E
F
0
8.5
18.5
27.0
8.5
18.5
35.5
30
9.5
18.5
28.0
9.5
18.5
37.5
35
10.0
18.5
28.5
10.0
18.5
38.5
40
11.0
18.5
29.5
11.0
18.5
40.5
45
12.0
18.5
30.5
12.0
18.5
42.5
50
13.0
18.5
31.5
13.0
18.5
44.5
55
14.0
18.5
32.5
14.0
18.5
46.5
60
15.0
18.5
33.5
15.0
18.5
48.5
65
16.0
19.5
35.5
16.0
19.5
51.5
70
16.5
20.0
36.5
16.5
20.0
53.0
75
17.0
20.5
37.5
17.0
20.5
54.5
80
17.5
21.0
38.5
17.5
21.0
56.0
85
18.0
21.5
39.5
18.0
21.5
57.5
90
18.5
22.0
40.5
18.5
22.0
59.0
Plate 2
TWO-WAY TRAFFIC – STANDARD SIZE STALL (8.5' X 18.5')
Parking Angle
Single Loaded Aisle
Double Loaded Aisle
A
B
C
D
*E
F
0
8.5
24
32.5
8.5
24
41
30
9.5
24
33.5
9.5
24
43
35
10.0
24
34.0
10.0
24
44
40
11.0
24
35.0
11.0
24
46
45
12.0
24
36.0
12.0
24
48
50
13.0
24
37.0
13.0
24
50
55
14.0
24
38.0
14.0
24
52
60
15.0
24
39.0
15.0
24
54
65
16.0
24
40.0
16.0
24
56
70
16.5
24
40.5
16.5
24
57
75
17.0
24
41.0
17.0
24
58
80
17.5
24
41.5
17.5
24
59
85
18.0
24
42.0
18.0
24
60
90
18.5
24
42.5
18.5
24
61
Plate 3
ONE-WAY TRAFFIC – COMPACT STALL (8' X 16')
Parking Angle
Single Loaded Aisle
Double Loaded Aisle
A
B
C
D
*E
F
0
8
17
25
8
17
33
30
8
17
25
8
17
33
35
9
17
26
9
17
35
40
10
17
27
10
17
37
45
11
17
28
11
17
39
50
12
17
29
12
17
41
55
13
17
30
13
17
43
60
13
17
30
13
17
43
65
14
17
31
14
17
45
70
15
17
32
15
17
47
75
15
17
32
15
17
47
80
16
18
34
16
18
50
85
16
18
34
16
18
50
90
16
18
34
16
18
50
Plate 4
TWO-WAY TRAFFIC – COMPACT STALL (8' X 16')
Parking Angle
Single Loaded Aisle
Double Loaded Aisle
A
B
C
D
*E
F
0
8
20
28
8
20
36
30
8
20
28
8
20
36
35
9
20
29
9
20
38
40
10
20
30
10
20
40
45
11
20
31
11
20
42
50
12
20
32
12
20
44
55
13
20
33
13
20
46
60
13
20
33
13
20
46
65
14
20
34
14
20
48
70
15
20
35
15
20
50
75
15
20
35
15
20
50
80
16
20
36
16
20
52
85
16
20
36
16
20
52
90
16
20
36
16
20
52
Plate 5
(Repealed by Ord. 3954)
Plate 6
(Repealed by Ord. 3954)
Plate 7
(Repealed by Ord. 3954)
Plate 8
(Repealed by Ord. 3954)
Plate 8A
PARKING AREA DESIGN USING STREET FOR CIRCULATIONA
Design of parking area using two-way street for circulation
B
Design of parking area using one-way street for circulation
Plate 9
ALLOWABLE SIGNAGE
Linear Frontages
of Subject
Property (ft.)
Sign
Category
C*Sign
Category
D*Sign
Category
E*Sign
Category
F*25
20
26
48
56
30
20
28
50
59
35
20
29
52
62
40
21
31
55
65
45
21
32
57
68
50
22
33
59
70
55
23
34
61
72
60
23
35
63
74
65
24
36
64
76
70
25
37
66
78
75
25
38
68
80
80
26
39
69
82
85
26
40
70
84
90
27
40
72
85
95
27
41
73
87
100
28
42
74
88
105
28
42
76
90
110
29
43
77
91
115
29
44
78
92
120
30
44
79
94
125
30
45
80
95
130
30
46
81
96
135
31
46
82
97
140
31
47
83
99
145
32
47
84
100
150
32
48
85
101
155
32
48
86
102
160
33
49
87
103
165
33
49
88
104
170
33
50
89
105
175
34
50
89
106
180
34
51
90
107
185
34
51
91
108
190
34
52
92
109
195
35
52
93
110
200
35
53
94
111
205
35
53
94
112
210
36
53
95
113
215
36
54
96
114
220
36
54
97
115
225
36
55
97
116
230
37
55
98
116
235
37
56
99
117
240
37
56
99
118
245
38
56
100
119
250
38
57
101
120
255
38
57
101
120
260
38
57
102
121
265
39
58
103
122
270
39
58
103
123
275
39
59
104
124
280
39
59
105
124
285
39
59
105
125
290
39
59
106
126
295
40
60
106
126
300
40
60
107
127
305
40
61
108
128
310
41
61
108
129
315
41
61
109
129
320
41
62
109
130
325
41
62
110
131
330
41
62
111
131
335
42
63
111
132
340
42
63
112
133
345
42
63
112
133
350
42
63
113
134
355
42
64
113
135
360
43
64
114
135
365
43
64
114
136
370
43
65
115
136
375
43
65
115
137
380
43
65
116
138
385
44
65
116
138
390
44
66
117
139
395
44
66
117
139
400
44
66
118
140
405
44
67
118
141
410
45
67
119
141
415
45
67
119
142
420
45
67
120
142
425
45
68
120
143
430
45
68
121
143
435
45
68
121
144
440
45
68
121
145
445
46
69
122
145
450
46
69
123
146
455
46
69
123
146
460
46
69
124
147
465
46
70
124
147
470
47
70
124
148
475
47
70
125
148
480
47
70
125
149
485
47
71
126
149
490
47
71
126
150
495
47
71
127
150
500
48
71
127
151
505
48
72
127
151
510
48
72
128
152
515
48
72
128
152
520
48
72
129
153
525
48
73
129
153
530
49
73
129
154
535
49
73
130
154
540
49
73
130
155
545
49
74
131
155
550
49
74
131
156
555
49
74
131
156
560
49
74
132
157
565
50
74
132
157
570
50
75
133
158
575
50
75
133
158
580
50
75
133
158
585
50
75
134
159
590
50
75
134
159
595
50
76
135
160
600
50
76
135
160
605
51
76
135
161
610
51
76
136
161
615
51
77
136
162
620
51
77
136
162
625
51
77
137
162
630
51
77
137
163
635
52
77
138
163
640
52
78
138
164
645
52
78
138
164
650
52
78
139
165
655
52
78
139
165
660
52
78
139
166
665
52
79
140
166
670
52
79
140
166
675
53
79
140
167
680
53
79
140
167
685
53
79
141
167
690
53
79
141
168
695
53
79
142
168
700
53
80
142
169
705
53
80
142
169
710
53
80
143
170
715
54
80
143
170
720
54
81
143
170
725
54
81
144
171
730
54
81
144
171
735
54
81
144
171
740
54
81
145
172
745
54
82
145
172
750
55
82
145
173
755
55
82
146
173
760
55
82
146
173
765
55
82
146
174
770
55
82
147
174
775
55
83
147
175
780
55
83
147
175
785
55
83
148
175
790
55
83
148
176
795
56
83
148
176
800
56
84
149
176
805
56
84
149
177
810
56
84
149
177
815
56
84
149
177
820
56
84
150
178
825
56
84
150
178
830
56
85
150
179
835
56
85
151
179
840
57
85
151
179
845
57
85
151
180
850
57
85
152
180
855
57
85
152
180
860
57
86
152
181
865
57
86
152
181
870
57
86
153
181
875
57
86
153
182
880
57
86
153
182
885
58
86
154
182
890
58
87
154
183
895
58
87
154
183
900
58
87
154
183
905
58
87
155
184
910
58
87
155
184
915
58
87
155
184
920
58
88
156
184
925
58
88
156
185
930
59
88
156
185
935
59
88
156
186
940
59
88
157
186
945
59
88
157
186
950
59
88
157
187
955
59
89
158
187
960
59
89
158
187
965
59
89
158
188
970
59
89
158
188
975
59
89
159
188
980
60
89
159
189
985
60
90
159
189
990
60
90
159
189
995
60
90
160
190
1000
60
90
160
190
1005
60
90
160
190
1010
60
90
161
191
1015
60
90
161
191
1020
60
91
161
191
1025
60
91
161
192
1030
61
91
162
192
1035
61
91
162
192
1040
61
91
162
193
1045
61
91
162
193
1050
61
91
163
193
1055
61
92
163
193
1060
61
92
163
194
1065
61
92
163
194
1070
61
92
164
194
1075
61
92
164
195
1080
62
92
164
195
1085
62
92
164
195
1090
62
93
165
196
1095
62
93
165
196
1100
62
93
165
196
1105
62
93
165
196
1110
62
93
166
197
1115
62
93
166
197
1120
62
93
166
197
1125
62
94
166
198
1130
62
94
167
198
1135
63
94
167
198
1140
63
94
167
198
1145
63
94
167
199
1150
63
94
168
199
1155
63
94
168
199
1160
63
95
168
200
1165
63
95
168
200
1170
63
95
169
200
1175
63
95
169
200
1180
63
95
169
201
1185
63
95
169
201
1190
64
95
170
201
1195
64
96
170
202
1200
64
96
170
202
1205
64
96
170
202
1210
64
96
170
202
1215
64
96
171
203
1220
64
96
171
203
1225
64
96
171
203
1230
64
96
171
204
1235
64
97
172
204
1240
64
97
172
204
1245
65
97
172
204
1250
65
97
172
205
1255
65
97
173
205
1260
65
97
173
205
1265
65
97
173
205
1270
65
97
173
206
1275
65
98
173
206
1280
65
98
174
206
1285
65
98
174
207
1290
65
98
174
207
1295
65
98
174
207
1300
65
98
175
207
1305
66
98
175
208
1310
66
98
175
208
1315
66
99
175
208
1320
66
99
176
208
1325
66
99
176
209
1330
66
99
176
209
1335
66
99
176
209
1340
66
99
176
209
1345
66
99
177
210
1350
66
99
177
210
1355
66
100
177
210
1360
66
100
177
211
1365
67
100
177
211
1370
67
100
178
211
1375
67
100
178
211
1380
67
100
178
212
1385
67
100
178
212
1390
67
100
179
212
1395
67
101
179
212
1400
67
101
179
213
1405
67
101
179
213
1410
67
101
179
213
1415
67
101
180
213
1420
67
101
180
214
1425
68
101
180
214
1430
68
101
180
214
1435
68
102
180
214
1440
68
102
181
215
1445
68
102
181
215
1450
68
102
181
215
1455
68
102
181
215
1460
68
102
182
216
1465
68
102
182
216
1470
68
102
182
216
1475
68
102
182
216
1480
68
103
182
217
1485
68
103
183
217
1490
69
103
183
217
1495
69
103
183
217
1500
69
103
183
217
For linear frontages greater than 1500 feet, use the following formulas for the appropriate category to determine the allowable signage:
*Square Feet of Signage Permitted
Plate 10
INTRUSIONS INTO REQUIRED SETBACK YARDS
Plan View
Plate 11
OUTDOOR USE ACTIVITY AND STORAGE AREAS
Public Park or Residential Zone
A – Horizontal Dimension of Structure, Building or Fence
B – Permitted Length of Outdoor Use, Activity and Storage Area as Determined
by Horizontal Dimension of Adjacent Structure or FenceB (Less than or Equal to) 50% A
Plate 12
PEDESTAL SIGNS
Sign Area
To determine the proposed sign area, both sides/sign faces are to be included in the calculation. For example, if each side or sign face measures 4 sq. ft., the total sign area is 8 sq. ft.
Minor deviations from the dimensional standards for pedestal signs, except for maximum sign height, may be approved by the Planning Official if he/she concludes that the resulting sign has a clear and substantial visual linkage to the ground.
Plate 13
MONUMENT SIGNS
Design Criteria
SIGN BASE: The base of the sign must be done in landscape construction materials such as brick, stucco, stonework, textured wood, tile or textured concrete or materials that are harmonious with the character of the primary structures on the subject property and subject to Planning Official approval. No visible gap shall be allowed between the sign base and the finished grade.
SIGN FACE: The color, shape, material, lettering, and other architectural details of the sign face must be harmonious with the character of the primary structures.Minor Deviations
Minor deviations from the dimensional standards for monument signs, except for maximum sign height, may be approved by the Planning Official if he/she concludes that the resulting sign does not significantly change the relative proportion of the sign base to the sign face.
Plate 13A
POLE SIGNS
HEIGHT OF SIGN SHALL NOT EXCEED 20 FEET ABOVE AVERAGE
GROUND ELEVATION.
POLE SIGN – ANY GROUND MOUNTED SIGN THAT DOES NOT MEET THE DEFINITIONS OF MONUMENT OR PEDESTAL SIGNS AND WHICH IS
COMPOSED OF TWO CHIEF ELEMENTS: THE SIGN FACE AND THE SIGN
POLE(S) OR PYLON(S) WHICH CONNECT(S) THE SIGN FACE TO THE GROUND.Plate 14
DRIVEWAY CONFIGURATION FOR DETACHED DWELLING UNITS
Plate 14A
DRIVEWAY SETBACKS ON “PANHANDLE” LOTS
Plate 14B
DRIVEWAY WIDTHS IN REQUIRED FRONT AND REAR YARDS
Plate 15
MEASURING 15 PERCENT SLOPES
Formula
Topographic Map
Profile
Plate 16
DETERMINING STREAM BUFFERS
* Note: Bank full width is determined by the 2.5-year storm line.
Plate 16A
STREAM BUFFERS
Plate 17A
CALCULATING AVERAGE BUILDING ELEVATION, OPTION 1
Plate 17B
CALCULATING AVERAGE BUILDING ELEVATION, OPTION 2
Plate 18
ADJOINING PROPERTIES
A Area to be considered adjoining property
B Area not to be considered adjoining property
Plate 19
CALCULATING AVERAGE PARCEL DEPTH
Plate 20
Turnaround Space
A
B
24' or less
6'
25'
5'
26'
4'
27'
3'
28'
2'
29'
1'
30' or more
0'
Plate 21
DWELLING UNITS “SERVED” AND NOT “SERVED” BY A VEHICULAR ACCESS EASEMENT OR TRACT
Example of 4 Dwelling Units
“Served” by an Easement or Tract
Plate 22
WD II NORTH PROPERTY LINE YARD AND HEIGHT OF STRUCTURE
Plate 23
CALCULATING FLOOR AREA FOR BASEMENTS (DETACHED DWELLING UNITS IN LOW DENSITY ZONES)
Plate 24
REQUIRED FRONT YARD AVERAGING
CORNER LOT WITH 2 REQUIRED FRONT YARDS
(DETACHED DWELLING UNITS IN LOW DENSITY ZONES)
Plate 25
PIPED SYSTEMS WITHIN BUFFER SETBACKS
As permitted in KZC 90.45(3) and 90.90(3)
Plate 26
WETLAND FIELD DATA FORM
WETLAND FIELD DATA FORM
BEGIN BY CHECKING ANY OF THE FOLLOWING (a. – e.) THAT APPLY:
a. The wetland is contiguous to Lake Washington;
b. The wetland contains at least 1/4 acre of organic soils, such as peat bogs or mucky soils;
c. The wetland is equal to or greater than 10 acres in size and having three or more wetland classes, as defined by the U.S. Fish & Wildlife Service (Cowardin et al., 1979), one of which is open water;
d. The wetland has significant habitat value to state or federally listed threatened or endangered wildlife species; or
e. The wetland contains state or federally listed threatened or endangered plant species.
IF ANY OF THE CRITERIA LISTED ABOVE ARE MET, THEN THE WETLAND IS CONSIDERED TO BE TYPE 1. IF THAT IS THE CASE, PLEASE CONTINUE TO COMPLETE THE ENTIRE FORM, BUT DO NOT ASSIGN POINTS.
IF THE WETLAND DOES NOT MEET THE CRITERIA LISTED ABOVE FOR TYPE 1, COMPLETE THE ENTIRE FORM, USING THE ASSIGNED POINTS TO DETERMINE IF IT IS A TYPE 2 OR TYPE 3 WETLAND.
Type 2 wetlands typically have at least two wetland vegetation classes, are at least partially surrounded by buffers of native vegetation, connected by surface water flow (perennial or intermittent) to other wetlands or streams, and contain or are associated with forested habitat.
1. Total wetland area
Estimate wetland area and score from choices Acres Point Value Points
>20.00 = 6
10-19.99 = 5
5-9.99 = 4
1-4.99 = 3
0.1-0.99 = 2
<0.1 = 1
2. Wetland classes: Determine the number of wetland classes that qualify, and score according to the table.
# of Classes
Points
Open Water: if the area of open water is >1/3 acre or >10% of the total wetland area
1
=
1
Aquatic Beds: if the area of aquatic beds is >10% of the open water area or >1/2 acre
2
=
3
Emergent: if the area of emergent class is >1/2 acre or >10% of the total wetland area
3
=
5
Scrub-Shrub: if the area of scrub-shrub class is >1/2 acre or >10% of the total wetland area
4
=
7
Forested: if the area of forested class is >1/2 acre or >10% of the total wetland area
5
=
10
3. Plant species diversity.
For all wetland classes which qualified in 2 above, count the number of different plant species and score according to the table below. You do not have to name them.
e.g., if a wetland has an aquatic bed class with 3 species, and emergent class with 4 species and a scrub-shrub class with 2 species, you would circle 2, 2, and 1 in the second column (below).
Class # of Species Point Value Class # of Species Point Value
Aquatic Bed 1-2 = 1 Scrub-Shrub 1-2 = 1
3 = 2 3-4 = 2
>3 = 3 >4 = 3
Emergent 1-2 = 1 Forested 1-2 = 1
3-4 = 2 3-4 = 2
>4 = 3 >4 = 3
4. Structural diversity.
If the wetland has a forested class, add 1 point for each of the following attributes present:
Trees >50' tall = 1
Trees 20' to 49' tall = 1
shrubs = 1
Herbaceous ground cover = 1
5. Interspection between wetland classes.
Decide from the diagrams below whether interspection between wetland classes is high, moderate, low or none
3 = High
2 = Moderate
1 = Low
0 = None
6. Habitat features
Add points associated with each habitat feature listed:
Is there evidence of current use by beavers? = 3
Is a heron rookery located within 300'? = 2
Are raptor nest(s) located within 300'? = 1
Are there at least 2 standing dead trees (snags) per acre? = 1
Are there any other perches (wires, poles, or posts)? = 1
Are there at least 3 downed logs per acre? = 1
7. Connection to streams
Is the wetland connected at any time of the year via surface water? (score one answer only)
Is the wetland connected at any time of the year via surface water?
To a perennial stream or a seasonal stream with fish = 5
To a seasonal stream without fish = 3
Is not connected to any stream = 0
8. Buffers
Step 1: Estimate (to the nearest 5%) the percentage of each buffer or land-use type (below) that adjoins the wetland boundary. Then multiply these percentages by the factor(s) below and enter result in the column to the right.
% of Buffer Step 1 Width Factor Step 2
Roads, buildings or parking lots % X 0 = =
Lawn, grazed pasture, vineyards or annual crops % X 1 = =
Ungrazed grassland or orchards % X 2 = =
Open water or native grasslands % X 3 = =
Forest or shrub % X 4 = =
Add buffer total
Step 2: Multiply result(s) of step 1:
By 1 if buffer width is 25-50'
By 2 if buffer width is 50-100'
By 3 if buffer width is >100'
Enter results and add subscores
Step 3: Score points according to the following table:
Buffer Total
900-1200 = 4
600-899 = 3
300-599 = 2
100-299 = 1
9. Connection to other habitat areas:
Is there a riparian corridor to other wetlands within 0.25 of a mile, or a corridor >100' wide with
good forest or shrub cover to any other habitat area? = 5Is there a narrow corridor <100' wide with good cover or a wide corridor >100' wide with low cover
to any other habitat area? = 3Is there a narrow corridor <100' wide with low cover or a significant habitat area within 0.25 mile
but no corridor? = 1Is the wetland and buffer completely isolated by development and/or cultivated agricultural land? = 0
10. Scoring
Add the scores to get a total: ______
Question: Is the total greater than or equal to 22 points?
Answer:
Yes = Type 2
No = Type 3
Plate 27A
Shoreline View Corridor
Required Shoreline View Corridor for Properties
that only abut Lake Washington BoulevardThe required shoreline view corridor across the property shall be determined by taking the view corridor required along Lake Washington Boulevard (30 percent of the average parcel width plus 2.5 feet for each foot the building height exceeds 30 feet above average building elevation) and then extending the view corridor across the landward property and the waterward property to the shoreline to provide a shoreline view corridor of 60 percent if building height is greater than 30 feet, but equal to or less than 35 feet or 70 percent if building height is greater than 35 feet (see diagram above).
Plate 27B
Shoreline View Corridor
Required Shoreline View Corridor for Properties
that only abut Lake Washington ShorelineThe required shoreline view corridor across the property shall be determined by taking the view corridor required along Lake Washington Boulevard (30 percent of the average parcel width plus 2.5 feet for each foot the building height exceeds 30 feet above average building elevation) and then extending the view corridor across the landward property and the waterward property to the shoreline to provide a shoreline view corridor of 60 percent if building height is greater than 30 feet, but equal to or less than 35 feet or 70 percent if building height is greater than 35 feet (see diagram above).
Plate 27C
Shoreline View Corridor
Required Shoreline View Corridor for Properties That Abut Both
Lake Washington Boulevard and Lake Washington ShorelineThe required shoreline view corridor across the property shall be determined by taking the view corridor required along Lake Washington Boulevard (30 percent of the average parcel width plus 2.5 feet for each foot the building height exceeds 30 feet above average building elevation) and then extending the view corridor across the property to the shoreline to provide a shoreline view corridor of 60 percent if building height is greater than 30 feet, but equal to or less than 35 feet or 70 percent if building height is greater than 35 feet (see diagram above).
Plate 28
North Property Line – Waterfront District (WD) Zones
Plate 29
Driveway Easement
Plate 30
Rooftop Appurtenances – Screening with Roof Forms – Examples
SCREENING WITH CLERESTORIES
SCREENING WITH ROOF WELLS
Plate 31
Rooftop Appurtenances – Allowable Height and Coverage
ELEVATION VIEW
Allowable Height per KZC 115.120(4)(a): Four feet above maximum allowable structure height
OR
Potential Height Increase per KZC 115.120(4)(b):
a. The minimum amount necessary; and
b. The lesser of:
i. The height of the story immediately below; or
ii. 15 feet above the applicable height limitation.
PLAN VIEW
Allowable Area per KZC 115.120(4)(a): (A x B) + (C x D) = /<10% (E x F)
OR
Potential Area Increase per KZC 115.120(4)(b): (A x B) + (C x D) = /<25% (E x F)
Plate 32
Affordable Housing Incentives – Multifamily112.20.2 Defined Affordable Housing Incentives – Density Bonus:
In use zones where the number of dwelling units allowed on the subject property is determined by dividing the lot size by the required minimum lot area per unit, two bonus units may be constructed for each affordable housing unit provided (see Example 1). In areas where the density allowed on the subject property is expressed as a floor area ratio (FAR), bonuses will be calculated as an equivalent FAR bonus (see Example 2). These examples are for properties that do not contain a wetland, stream, minor lake or their buffers. For properties that contain a wetland, stream, minor lake or their buffers, the base density allowed shall be established using the maximum development potential calculation in KZC 90.135.
Example 1 – Density Bonus
Property Size (Net Acres)
3 Acres
Zoned Density
2,400 square feet of land area required per unit
Base Density Allowed
(3 Acres x 43,560 sq. ft. per acre)
