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INGRESS & EGRESS EASEMENT
20'-0"11'-11" 2ND LVL SIDE SB
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DUPLEX -UNIT1 (1,702 SF)
W/ GARAGE (442 SF)
DUPLEX -UNIT2 (1,397 SF)
W/ GARAGE (228 SF)
3'-0" 20'-0"
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NEW STREET TREE WITHIN THE
PUBLIC RIGHT OF WAY TO BE
PLANTED BY THE CITY
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903 SF405 SF
67 SF 404 SF
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SITE PLAN, LEGEND, PROPOSED:
PROPERTY LINE
BUILDING FOOTPRINT
SETBACK
CENTERLINE
NOTES
1. CONTRACTOR SHALL FIELD VERIFY LOCATIONS OF
UTILITIES, SITE CONDITIONS, DIMENSIONS, STRUCTURES
PRIOR TO START OF WORK. IN EVENT OF ANY
DISCREPANCIES OR POTENTIAL CONFLICTS, NOTIFY THE
ARCHITECT IN WRITING PRIOR TO STARTING EACH PORTION
OF THE WORK.
2. ALL ELEMENTS IN GREY ARE EXISTING, ALL ELEMENTS IN
BLACK ARE PROPOSED.
3. FINISH GRADE AROUND THE STRUCTURE SHALL SLOPE
AWAY FROM THE FOUNDATION AT A MINIMUM OF 5% FOR AT
LEAST 10 FEET FROM THE STRUCTURE. CBC 1804.4
4. UNDERGROUND ALL OVERHEAD SERVICES FROM DUPLEX
TO NEAREST POLE. CONTACT PGE TO INITIATE DESIGN
5. SEPERATE SEWER / GAS / ELECTRICAL LINES FOR DUPLEX
U
(P) DUPLEX 1ST UNIT AC CONDENSOR
EXTERIOR UNIT
(P) DUPLEX 2ND UNIT AC CONDENSOR
EXTERIOR UNIT
AC1 & AC2 SEE SPECIFICATION BOOK .
SMARTCOMFERT R4A5S24AKAWA
(P) DUPLEX 2ND UNIT GAS METER 3/4"
(P) DUPLEX 1ST UNIT 200 AMP MAIN
ELECTRICAL PANEL, DUAL SOCKET METER
WITH ADU 100 AMP SUBPENAL
(P) DUPLEX 2ND UNIT 200 AMP ELECTRICAL
PANEL
SITE PLAN, PROPOSED, KEYNOTES
REAR MINIMUM SETBACK MAY BE REDUCED TO 10
FEET PROVIDED THAT THE REQUIRED REAR-YARD
SETBACK AREA IS NO LESS THAN EIGHT HUNDRED
FIFTY SQUARE FEET OR TWENTY TIMES OF THE LOT
WIDTH. PER. CMC. 19.32.060
SEE FRONT & REAR SETBACK EXHIBIT
PROPOSED REAR YARD 1027 SF > 800 SF
1
2
3
4
SIDEWALK, PER ENCROACHMENT PERMIT
CURBS, PER CITY OF CUPERTINO STANDARD DETAILS. 1-16
GUTTER, PER CITY OF CUPERTINO STANDARD DETAILS. 1-19
(P) NEW CONCRETE DRIVEWAY, PER CITY OF CUPERTINO
STANDARD DETAILS. 1-16, 1-19, 1-21, SEE G1.2
(P) 5' PUE DEDICATED RIGHT-OF-WAY
(P) NEW FENCE
UNCOVERED PARKING SPACE. PER ORIENTATION OF PARKED
VEHICLES. I. ALL VEHICLES PARKED IN THE FRONT OR STREET
YARD SETBACK AREA MUST BE PARKED PERPENDITULAR TO
THE STREET.
SECTBACK LINE FOR 1ST FLOOR
SETBACK LINE FOR 2ND FLOOR
WALL MOUNT OUTDOOR DOWN LIGHT, MOTION SENSING
SEE SPECIFICATION BOOK . C CATTLEYA CA1927-W
5
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(E) WATER METER
(E) UTILITY POLE (DATA)
7
AC2
E2
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LAND USE ZONES PARKING RATIO STALL DIM.
(P) 3 ENCLOSED PARKING + 3 OPEN PARKING
FOR DUPLEX (2 DWELLING UNITS)
DUPLEX R-2 6/2 DUWELLING UNITS
(1 ½ ENCLOSED + 1 ½
OPEN)
10 X 20 EA.
10
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GRASS
MULCH
PAVER FOR LANDING & WALKWAY
EASEMENT
CONCRETE FOR SIDEWALK
CLAY TILE ROOF
13 PER CMC TABLE 19.124.030A(E). FRONT YARD IMPERVIOUS
AREA LIMITATION. (I) LOTS > 60 FEET IN WIDTH, MAXIMUM
IMPERVIOUS AREA = 40% OF FRONT YARD AREA.
SEE FRONT YARD IMPERVIOUS AREA CALCUALTION TABLE
AND FRONT & REAR SETBACK EXHIBIT /2 G1.0
/2 G1.0
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ATTS
LACEFOI
LICENSED ARCHITECT
FORNIA
GORD KONW
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RENEWAL 08/31/2025
12/22/2025 4:44:02 PM
G1.0
General, Info &
Site Plan,
Proposed
Ge
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SCOPE OF WORK
VICINITY MAP
3D MODEL
PROJECT DIRECTORY
PROJECT INFORMATION
PROJECT LOCATION:22620-22630 ALCALDE RD, CUPERTINO, CA 95014
APN:342-16-102
ZONING:TWO FAMILY RESIDENTIAL: R2-4.25
LOT SIZE:8,511 SF / 0.19 ACRES
OCCUPANCY TYPE:R3
CONSTRUCTION TYPE:V-B, SPRINKLERED
PRIMARY RESIDENCE SET BACKS:
MAX. LOT COVERAGE:40% OF NET LOT AREA (EXCLUDE EASEMENT)
40% x 6,901 SF = 2,760.40
PROPOSED LOT COVERAGE:39.97% = 2758 SF / 6,901 SF
MAX. STORIES/ HEIGHT:2 STORIES / 30'-0"
MAX.RESIDENTIAL UNITS ALLOWED:2
1ST FLOOR SETBACK:
PER CMC.TABLE 19.32.060
FRONT: 20'-0"
SIDE (INTERIOR): 17'-9.5"
(COMBINED)= 0.2 X 89 FT, 20% OF LOT WIDTH MEASURED AT FRONT SB LINE
REAR: 10'-0" (REQUIRED REAR-YARD SETBACK AREA IS NO LESS THAN 850 SF)
2ND STORY SECTBACK
FRONT 20'-0"
SIDE 20'-9.5"(COMBINED), AT LEAST 3'-0" MORE THAN FIRST FLOOR SETBACK
REAR 15' 2 1/2'' (20% OF LOT DEPTH = 76 FT x 0.2)
FLOOR AREA BREAKDOWN
(E) RESIDENCE:
1ST FLOOR 1,865 SF
DETACHED GARAGE: 422 SF
TOTAL, HABITABLE: 1,865 SF
TOTAL,GROSS: 2,287 SF
(P) RESIDENCE:
1ST UNIT
LEVEL 1 527 SF
LEVEL 2 733 SF
GARAGE 442 SF
TOTAL HABITABLE 1,260 SF
TOTAL GROSS 1,701 SF
2ND UNIT
LEVEL 1 479 SF
LEVEL 2 690 SF
GARAGE 228 SF
TOTAL HABITABLE 1,169 SF
TOTAL GROSS 1,398 SF
LOT COVERAGE: 1,740 SF / 6,901 SF = 24.8% < 40% {OKAY}
UNITS DIFFERENCE RATIO
1701 SF - 1398 SF = 303 SF
(1701 SF + 1398 SF) / 2 = 1,549.5 SF
307 / 1,549.5 = 19.6% < 20% {OKAY}
PARKING
REQUIRED 6 PARKING SPACES FOR 2 UNITS (1.5 ENCLOSED AND 1.5 OPEN FOR EACH UNIT)
PROPOSED 6 PARKING (3 ENCLOSED + 3 OPEN)
JURISDICTION
CITY OF CUPERTINO DEPARTMENT OF PLANNING AND DEVELOPMENT
DUPLEX RESIDENTIAL NEW CONSTRUCTION 3,099 SF
• 1ST PRIMARY UNIT 1,702 SF
• 3 BED 2.5 BATH
• KITCHEN & DINING
• FAMILY ROOM
• LAUNDRY
• GARAGE 442 SF
OWNER:CHI TAT LAW & WANCHI SO
22620 ALCALDE RD, CUPERTINO, CA 95014
ARCHITECT:GKW ARCHITECTS INC. | 710 E. MCGLINCY LN. STE 109, CAMPBELL CA 95008
408-315-2125 | GORDONKWONG@GKWARCHITECTS.COM
GEOTECHNICAL ENGINEERING: GEOENGINEERING CONS, INC. | 2603 CAMINO RAMON, STE 200, SAN RAMON CA 94583
925-321-5550 | KAMRAN@GEOENGINEERINGCONSULTANTS.COM
STRUCTURAL ENGINEER:4X ENGINEERING, INC. | 1885 MERIDIAN AVE, SAN JOSE CA 95125
408-642-5464 | CONTACT@4XENGINEERING.COM
LAND SURVEYOR:ROBERT C. LAND SURVEYOR | 966 ELISIE MAE DR., BOULDER CREEK CA 95006
831-359-1750 | ROBERTJAMESCRAIG@GMAIL.COM
T24 ENERGY REPORT:CARSTAIRS ENERGY, INC. | 2238 BAYVIEW HEIGHTS DR, SUITE E, LOS OSOS, CA 93402
805.904.9048 | WWW.CARSTAIRSENERGY.COM
JURISDICTION:CITY OF CUPERTINO | 10300 TORRE AVENUE, CUPERTINO CA 95014
408-777-3228 | BUILDINGINSPECTORS@CUPERTINO.GOV
SANITATION:CUPERTINO SANIT. DIST. | 20863 STEVENS CREEK BLD, STE 100, CUPERTINO CA 95014
408-253-7071 | INFO@CUPERTINOSANITARYDISTRICT.ORG
HERS FEATURE SUMMARY
ALCALDE RD
PALM AVE
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LOCATION
SANTA PAULA AVE
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ALICIA CT
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1" = 10'-0"1 Site Plan, Proposed
1/64" = 1'-0"2 Front & Rear Setback Exhibit
ALCALDE DUPLEX
C A L I F O R N I AC U P E R T I N O
APPLICABLE CODES
• 2022 CALIFORNIA BUILDING CODE
• 2022 CALIFORNIA RESIDENTIAL CODE
• 2022 CALIFORNIA MECHANICAL CODE
• 2022 CALIFORNIA PLUMBING CODE
• 2022 CALIFORNIA ELECTRICAL CODE
• 2ND PRIMARY UNIT 1,397 SF
• 3 BED 2.5 BATH
• KITCHEN & DINING
• LAUNDRY
• GARAGE 228 SF
• 2022 CALIFORNIA ENERGY CODE
• 2022 CALIFORNIA FIRE CODE
• 2022 CALIFORNIA GREEN BUILDING STANDARDS CODE
• CITY OF CUPERTINO MUNICIPAL CODE
• ALL OTHER STATE AND LOCAL LAWS, ORDINANCES & REG.
• FIRE SPRINKLERS ARE REQUIRED. SEPARATE SYSTEM FOR 2 UNITS. NO PENETRATION THROUGH FIRE RATED WALL
APPROVED AUTOMATIC SPRINKLER SYSTEMS IN NEW AND EXISTING BUILDINGS AND STRUCTURES SHALL BE PROVIDED IN THE
LOCATIONS DESCRIBED IN THIS SECTION OR IN SECTIONS 903.2.1 THROUGH 903.2.12 WHICHEVER IS THE MORE RESTRICTIVE
AND SECTIONS 903.2.14 THROUGH 903.2.21. FOR THE PURPOSES OF THIS SECTION, FIREWALLS AND FIRE BARRIERS USED TO
SEPARATE BUILDING AREAS SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE CALIFORNIA BUILDING CODE AND SHALL BE
WITHOUT OPENINGS OR PENETRATIONS.
• STANDARD PV SYSTEM - TBD
• TBD
DEFERRED SUBMITTALS
0'5'10'20'40'
FRONT YARD IMPERVIOUS AREA CALCULATION TABLE
IMPERVIOUS TYP.PERVIOUS TYP.
CONCRETE GRASSMULCHPAVERS
MATERIAL TYP.
AREA / SQFT
TOTAL FRONT YARD / SQFT
405 90340467
Revision Schedule
1 2025.07.30 DUPLEX - PLNG
2 2025.09.22 DUPLEX - PLNG
3 2025.10.22 DUPLEX - PLNG
2,180
IMPERVIOUS %472 / 2,180 = 21.65% < 40% {OKAY}
3
Sheet Index
Sheet Number Sheet Name
General
G1.0 General, Info & Site Plan, Proposed
G1.1 General, Notes & Site Plan, Existing
G1.2 General, Driveway Details & Flow Data
G1.3 General, Privacy Plan
Land Survey
LS1.0 Land Survey, Boundary Map
Architectural
A1.0 Architectural, 1st Floor Plans, Proposed
A1.1 Architectural, 2nd Floor Plans, Proposed
A1.2 Architectural, Floor Area, Roof Plans, Proposed
A2.0 Architectural, Elevations, Proposed
A3.0 Architectural, Sections, Proposed
A4.0 Architectural, Window & Door Schedule, Proposed
A5.0 Architectural, Building Details
A5.1 Architectural, Fire Rating, Details
A6.0 Architectural, 3D & Enlarged Views
MEP
E1.0 Architectural, Electrical & Lighting Plan, Proposed
M1.0 Architectural, Mechanical & Plumbing Plan, Proposed
3