Updated: Sep 24, 2025
Location and Projects
Address
873 FIRST STREET WEST, Sonoma, CA, 95476
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Willers William Joseph Architect
Willers William Joseph, 873 First St W, Sonoma, CA holds a Architect license according to the California license board.
Their BuildZoom score of 97 ranks in the top 18% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Willers William Joseph, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Willers William Joseph Services
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Willers William Joseph Contact Information
Address: 873 FIRST STREET WEST, Sonoma, CA 95476
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Building Permits by Willers William Joseph
This is a sample of this contractor's permits. Click here to access their complete permit history.
New single family dwelling 4 614 sf carport 864 sf covered porches 1 218 sf construction of a new one-story single-family residence and swimming pool (under separate permit). the dwelling will consist of three bedrooms three bathrooms two half-bathrooms a central living/dining/kitchen area pantry office laundry room mechanical room and attached two-car carport
Valuation:
N/A
Permit #:
BLD25-3446
Status:
plancheck
Fee:
$5,908
Permit Type:
N/A
Building Type:
N/A
Evt17-05369 new adu 1068 sf 370 sf storage basement 1bdr 1 ba with below grade basement-wine storage room media room and a central living/dining/kitchen area. below the adu is a below grade basement wine storage room accessed from the exterior
Valuation:
N/A
Permit #:
BLD25-4898
Status:
resubmittal requested
Fee:
$1,716
Permit Type:
N/A
Building Type:
N/A
Remodel of and additions to an existing one-story single family dwelling. new 543 sq ft addition and remodel of 1942 sq ft the dwelling will consist of two bedrooms two and a half bathrooms a central living/dining/kitchen area office and laundry room. a detached accessory dwelling unit with attached one-car garage and a detached pool house are under separate permits
Valuation:
N/A
Permit #:
BLD24-3664
Status:
issued
Fee:
$7,247
Permit Type:
N/A
Building Type:
N/A
Remove existing (3) garage doors and replace with 2 new garage doors. also contained in the structural drawing are revision required as a result of existing framing conditions unknown prior to exposing exitsting framing
Valuation:
N/A
Permit #:
BLD23-3036.R01
Status:
complete
Fee:
$503
Permit Type:
N/A
Building Type:
N/A
2017 complex fire - construct 980 sqft att'd adu by converting 277 sqft of bedroom of existing single family dwelling and adding 703 sqft - evt17-01948
Valuation:
N/A
Permit #:
BLD21-1933
Status:
plancheck
Fee:
$3,397
Permit Type:
N/A
Building Type:
N/A
Remove existing trellis and replace with a new pergola with a solid roof
Valuation:
N/A
Permit #:
BLD23-3036.R02
Status:
complete
Fee:
$503
Permit Type:
N/A
Building Type:
N/A
2595 sf replacement single family dwelling 676 sf attach. garage 182 sf cov. porch 186 sf balcony
Valuation:
N/A
Permit #:
BLD18-0408
Status:
final
Fee:
$20,401
Permit Type:
N/A
Building Type:
N/A
3rd party -new sfd-4907 sq ft & 868 sq ft covered deck
Valuation:
N/A
Permit #:
BLD18-0958
Status:
final
Fee:
$68,461
Permit Type:
N/A
Building Type:
N/A
2017 complex fire garage and shed 1, 078 sq ft evt17-03728
Valuation:
N/A
Permit #:
BLD18-1692
Status:
final
Fee:
$1,920
Permit Type:
N/A
Building Type:
N/A
3rd party-new accessory dwelling with covered porch
Valuation:
N/A
Permit #:
BLD18-0962
Status:
final
Fee:
$8,756
Permit Type:
N/A
Building Type:
N/A
Single family dwelling remodel (4 073 sf) including hvac ducts and fans garage/workshop remodel (1 051 sf) and new covered porch (232 sf)
Valuation:
N/A
Permit #:
BLD23-3036
Status:
final
Fee:
$2,452
Permit Type:
N/A
Building Type:
N/A
2017 complex fire - 3051 sf single family dwelling - evt17-01948
Valuation:
N/A
Permit #:
BLD19-3444
Status:
final
Fee:
$7,954
Permit Type:
N/A
Building Type:
N/A
New detached garage 912 sq ft
Valuation:
N/A
Permit #:
BLD18-0960
Status:
final
Fee:
$1,915
Permit Type:
N/A
Building Type:
N/A
2017 complex fire - single family dwelling 3010 sqft: garage 711 sqft: evt17-05369
Valuation:
N/A
Permit #:
BLD19-4233
Status:
final
Fee:
$8,508
Permit Type:
N/A
Building Type:
N/A
Replacement single family dwelling - 2700 sq ft (prev home 972 st ft) - w/504 sq ft covered porch & 45 sq ft unconditioned mechanical room
Valuation:
N/A
Permit #:
BLD14-5173
Status:
final
Fee:
$25,856
Permit Type:
N/A
Building Type:
N/A
Replacement single family dwelling with attached garage sprinklers req'd deferred submittal
Valuation:
N/A
Permit #:
BLD15-5625
Status:
final
Fee:
$21,116
Permit Type:
N/A
Building Type:
N/A
Single family dwelling addition major interior rmdl cnvert & attach ex barn to lvng spce rmdl att'd garage porch 12/7/11 scope of work revised to include reframing all wall --5/17/12 temp occp
Valuation:
N/A
Permit #:
BLD11-2780
Status:
final
Fee:
$11,545
Permit Type:
N/A
Building Type:
N/A
528sf workshop attached 308sf garage attached 120sf covered porch [revised entry] single family dwelling addition major interior rmdl cnvert & attach ex barn to lvng spce rmdl att'd garage porch [original entry]
Valuation:
N/A
Permit #:
BLD11-2781
Status:
final
Fee:
$5,190
Permit Type:
N/A
Building Type:
N/A
Detached garage 1392 sq ft - with 368 sq ft conditioned space for office & full bathroom included in the total area
Valuation:
N/A
Permit #:
BLD14-5174
Status:
final
Fee:
$3,779
Permit Type:
N/A
Building Type:
N/A
Site retaining walls
Valuation:
N/A
Permit #:
BLD18-0961
Status:
final
Fee:
$835
Permit Type:
N/A
Building Type:
N/A
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Willers William Joseph License info
Verified License
| License # | C21505 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom verified this license was active as of July 2025.
Verify this license's status for Willers William Joseph at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
43
Permits
- Building permit records show that Willers William Joseph has worked on 43 permitted projects.