Updated: Jan 30, 2026
Location and Projects
Address
20 LOCHNESS LANE, San Rafael, CA, 94901
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Jan O Werner Construction
Jan O Werner, 20 Lochness Ln, San Rafael, CA (Owned by: Jan Olof Werner) holds a General Building license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Jan O Werner, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Jan O Werner Services
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Jan O Werner Contact Information
Phone Number: (415) 990-9496
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Address: 20 LOCHNESS LANE, San Rafael, CA 94901
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Demolish existing single story residence and building new two s
Valuation:
N/A
Permit #:
B-035795
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New single family 3900 sq. ft
Valuation:
N/A
Permit #:
B-033473
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install automatic driveway gate
Valuation:
N/A
Permit #:
B-036262
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Reval
Valuation:
$346,838
Permit #:
REVAL-000167
Status:
issued
Fee:
$6,236
Permit Type:
Residential
Building Type:
N/A
Fence
Valuation:
$3,000
Permit #:
BPA10-114
Status:
final
Fee:
$273
Permit Type:
Construction only
Building Type:
N/A
4 parking spaces - 1 day
Valuation:
N/A
Permit #:
DPW-000955
Status:
issued
Fee:
$52
Permit Type:
N/A
Building Type:
N/A
Construction of garage and second unit. all work shall meet
Valuation:
N/A
Permit #:
B-032177
Status:
final
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
Installing new gas new electric new driveway apron
Valuation:
$25,000
Permit #:
DPW-000903
Status:
issued
Fee:
$1,000
Permit Type:
N/A
Building Type:
N/A
Demolish old new single family dwelling
Valuation:
$900,000
Permit #:
BPA10-178
Status:
final
Fee:
$29,164
Permit Type:
N/A
Building Type:
N/A
2nd unit sewer connection < 700 sf
Valuation:
N/A
Permit #:
DPW-000310
Status:
final
Fee:
$1,250
Permit Type:
N/A
Building Type:
N/A
Revaluation
Valuation:
$655,027
Permit #:
REVAL-000064
Status:
final
Fee:
$5,666
Permit Type:
N/A
Building Type:
N/A
Otc kitchen and bathroom remodel
Valuation:
N/A
Permit #:
B-032051
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Grading permit w bond
Valuation:
$1
Permit #:
DPW-000468
Status:
final
Fee:
$165
Permit Type:
None
Building Type:
N/A
Vehicle entry gates
Valuation:
N/A
Permit #:
B-031503
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Grading permit w bond
Valuation:
$1
Permit #:
DPW-000468
Status:
final
Fee:
$165
Permit Type:
None
Building Type:
N/A
Otc kitchen and bathroom remodel
Valuation:
N/A
Permit #:
B-032051
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of new utility pole specifically for 575 summit
Valuation:
$1,000
Permit #:
DPW-000522
Status:
issued
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
4 parking spaces - 1 day
Valuation:
N/A
Permit #:
DPW-000955
Status:
issued
Fee:
$52
Permit Type:
N/A
Building Type:
N/A
Construct 3 detached townhomes
Valuation:
N/A
Permit #:
29956
Status:
final
Fee:
N/A
Permit Type:
New construction
Building Type:
N/A
No Description Available
Valuation:
$260,000
Permit #:
REVAL-000078
Status:
canceled
Fee:
$5,666
Permit Type:
Residential
Building Type:
N/A
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Verified License
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Jan O Werner License info
Verified License
| License # | 803943 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Jan O Werner at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
9
Permits
- Building permit records show that Jan O Werner has worked on 9 permitted projects.
Jan O Werner Employees
JW
Jan Olof Werner
Owner