Updated: Aug 29, 2025
Location and Projects
Address
505 HUMBOLDT AVENUE, Sausalito, CA, 94965
Use our bidding system to
request a quote
Donald K Olsen Assoc Architect
Donald K Olsen Assoc, 505 Humboldt Ave, Sausalito, CA (Employee: Donald K. Olsen) holds a Architect license and 1 other license according to the Novato license board.
Their BuildZoom score of 91 ranks in the top 37% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Donald K Olsen Assoc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Donald K Olsen Assoc Services
Start a project today:
Donald K Olsen Assoc Contact Information
Phone Number: (415) 272-8609
Edit
Address: 505 HUMBOLDT AVENUE, Sausalito, CA 94965
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Sewer cap for demolish permit# 19019-10000-04433
Valuation:
N/A
Permit #:
20042-10000-03223
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Demolish illegal 2nd unit remove kitchen
Valuation:
N/A
Permit #:
B1502-087
Status:
final
Fee:
$2,108
Permit Type:
Alter-sfd
Building Type:
N/A
Convert solarium into conditioned space (baby room)
Valuation:
$57,215
Permit #:
B-2013053
Status:
issued
Fee:
$1,888
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$400,000
Permit #:
B-46711
Status:
issued
Fee:
$6,885
Permit Type:
N/A
Building Type:
N/A
Replace existing glue lam beams
Valuation:
$15,000
Permit #:
B-2013280
Status:
issued
Fee:
$723
Permit Type:
N/A
Building Type:
N/A
Convert to cafe by adding ada entrance and kitchen
Valuation:
$129,380
Permit #:
B-8388
Status:
issued
Fee:
$3,882
Permit Type:
N/A
Building Type:
N/A
To finish work (rebuild sfd) started under c9200841; approve through wall cover= 10% orig. value left
Valuation:
$28,090
Permit #:
RB9603028
Status:
Final
Fee:
$675
Permit Type:
N/A
Building Type:
N/A
Install new single leaf outswing door & removing existing; no ti; move 220 electrical
Valuation:
$5,000
Permit #:
201308305743
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
05 - food/beverag...
Replace (e) rotten deck; addition additional floor area
Valuation:
$60,000
Permit #:
B-9256
Status:
issued
Fee:
$2,114
Permit Type:
N/A
Building Type:
N/A
Remodel to pool enclosure fence
Valuation:
$37,500
Permit #:
B1007-042
Status:
expired
Fee:
$1,892
Permit Type:
Alter-apartments
Building Type:
N/A
New construction to finish work (rebuild sfd) started under c9200841; approve through wall cover= 10% orig. value left
Valuation:
N/A
Permit #:
RB9603028
Status:
FINAL
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$130,000
Permit #:
B-9077
Status:
issued
Fee:
$3,538
Permit Type:
N/A
Building Type:
N/A
Kitchen&baths
Valuation:
N/A
Permit #:
B0010-001
Status:
final
Fee:
$1,953
Permit Type:
Alter-res
Building Type:
N/A
Void 06/10/98 replace ex 100 amp service with 100 amp service
Valuation:
N/A
Permit #:
00080884
Status:
canceled
Fee:
$45
Permit Type:
N/A
Building Type:
N/A
Reception area remodel
Valuation:
N/A
Permit #:
B0102-023
Status:
final
Fee:
$1,104
Permit Type:
Alter-com
Building Type:
N/A
To final work started under combo. permit #c9400434
Valuation:
$0
Permit #:
RE9602435
Status:
Final
Fee:
$83
Permit Type:
N/A
Building Type:
N/A
To final work started under combo permit #c9400434
Valuation:
$0
Permit #:
RM9601045
Status:
Final
Fee:
$83
Permit Type:
N/A
Building Type:
N/A
To final work started under combo permit #c9400434
Valuation:
$0
Permit #:
RP9601362
Status:
Final
Fee:
$83
Permit Type:
N/A
Building Type:
N/A
Raise/enclose carport roof
Valuation:
N/A
Permit #:
B0206-005
Status:
final
Fee:
$794
Permit Type:
Alter-res
Building Type:
N/A
Addition - 16 sq ft (bathroom extension)
Valuation:
$10,000
Permit #:
B2009-1158
Status:
final
Fee:
$600
Permit Type:
Residential
Building Type:
N/A
Similar Contractors See more
156
BZ Score
$218K
Avg Project
-
Projects
154
BZ Score
$67.5K
Avg Project
-
Projects
152
BZ Score
$73.9K
Avg Project
-
Projects
Donald K Olsen Assoc Reviews
BuildZoom hasn't received any reviews for Donald K Olsen Assoc. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
Donald K Olsen Assoc License info
Verified License
| License # | C-4097 |
| Status | Active |
| City | Novato |
| Type | Architect |
- BuildZoom has not verified this license since July, 2015.
Verify this license's status for Donald K Olsen Assoc at the The City of Novato, CA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | C4097 |
| Status | Inactive |
| State | California |
| Type | Architect |
- According to the California Architect License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Donald K Olsen Assoc at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
22
Permits
- Building permit records show that Donald K Olsen Assoc has worked on 22 permitted projects.
Donald K Olsen Assoc Employees
DO
Donald K. Olsen