Updated: Mar 29, 2026
Location and Projects
Address
40 CAMINO MONTE SOL, Alamo, CA, 94507
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Leonard John Steffen Construction
Leonard John Steffen at 40 CAMINO MONTE SOL, Alamo, CA 94507, held a General Contractor license (#401576) with the California contractors license board with an expiration date of 03-31-2015. We last verified the license was inactive on 03-28-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Leonard John Steffen Services
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Leonard John Steffen Contact Information
Phone Number: (925) 935-1918
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Address: 40 CAMINO MONTE SOL, Alamo, CA 94507
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This is a sample of this contractor's permits. Click here to access their complete permit history.
5500 sq ft single family residence see revised plans 3/14/05 jak reconfigured family room breakfast area & made interior changes. reduced square footage by 200 sq ft
Valuation:
N/A
Permit #:
BI360475
Status:
final
Fee:
$26,113
Permit Type:
N/A
Building Type:
N/A
5500 sq ft single family residence see revised plans 3/14/05 jak reconfigured family room breakfast area & made interior changes. reduced square footage by 200 sq ft
Valuation:
N/A
Permit #:
BI360475
Status:
final
Fee:
$26,113
Permit Type:
N/A
Building Type:
N/A
New single family residence. new parcel is 193-020-012 not in system yet *120 final inspection on 2/23/07 to include 320 420 and 520* debris rec. rpt. rcv'd 2/22/07 ok to schedule final***hold final inspection for submittal of debris recovery report per lorna thomson 5-1231
Valuation:
N/A
Permit #:
BI370086
Status:
final
Fee:
$35,217
Permit Type:
N/A
Building Type:
N/A
New single family residence with attached garage ***no construction beyond foundation/glenn peterson/srvfd ***no framing or t-bar w/o clearnance/glenn peteson/srvfd ***no final or occupancy w/o fire clearance/glenn peterson srvfd
Valuation:
N/A
Permit #:
BI366430
Status:
final
Fee:
$30,651
Permit Type:
N/A
Building Type:
N/A
Renew original permit bld2002-03261 ( val. $1 165 154.92) ~new 2 story single family dwelling. 1st fl: 2br 2 1/2ba liv din kit nook fr library game room sitting area laundry and 4 car garage 2nd fl: 3br 2 1/2ba patio. retaining wall around 1st floor patio is approximately 105 ft. long and range in height from 3ft to 9ft
Valuation:
N/A
Permit #:
BLD2006-00452
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
778 sq ft conditioned cabana attached to residence by breezeway per plans. not for independent living 12-7-05---revision to title 24 calculations due to changing water heater from gas to electric.---bdb
Valuation:
N/A
Permit #:
BI369622
Status:
final
Fee:
$3,007
Permit Type:
N/A
Building Type:
N/A
Renew permit 2004-04062 (val. $118 943.73) ~ addition basement to new home under construction. includes storage gym room and bathroom. supplemental to 2002-03261
Valuation:
N/A
Permit #:
BLD2006-00454
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renew original permit bld2004-04061 (val. $34 500) ~300lf of access oad retaining wall lower side. variable ht 4'-6 supplemental to 2004-02606
Valuation:
N/A
Permit #:
BLD2006-00455
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renew original permit bld2004-02606 ( val. $287 500) ~2000 linear ft of access road retaining wall; uphill side only. variable height 3-6 ft
Valuation:
N/A
Permit #:
BLD2006-00453
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New single family residence revisio: 11/10/03 added 435 sq ft to 2nd floor & added 101 sq ft to garage
Valuation:
N/A
Permit #:
BI328527
Status:
final
Fee:
$26,195
Permit Type:
N/A
Building Type:
N/A
Retaining wall per plans 70 ft x 4 ft 90 x 6 200 x 4.5 70 x 5 120 x 5 total 2670 sq. ft. approx.ek
Valuation:
N/A
Permit #:
BI369625
Status:
final
Fee:
$1,004
Permit Type:
N/A
Building Type:
N/A
New single family residence with attached garage per plans
Valuation:
N/A
Permit #:
BI382949
Status:
final
Fee:
$31,693
Permit Type:
N/A
Building Type:
N/A
New home 4800 sq ft w/attached garage 700 sq ft
Valuation:
N/A
Permit #:
BI326665
Status:
final
Fee:
$23,028
Permit Type:
N/A
Building Type:
N/A
2000 linear ft of access road retaining wall; uphill side only. variable height 3-6 ft
Valuation:
N/A
Permit #:
BLD2004-02606
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Modifications to counter to provide set-up for a coffee center elect. circuits addition 2
Valuation:
$1,500
Permit #:
B9402370
Status:
Final
Fee:
$84
Permit Type:
N/A
Building Type:
N/A
Single family and garage
Valuation:
N/A
Permit #:
BIR0000162960
Status:
final
Fee:
$4,113
Permit Type:
N/A
Building Type:
N/A
Change subpanel. addition exterior flood lights and 2 new circuits
Valuation:
N/A
Permit #:
E9501678
Status:
FINAL
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Change subpanel. addition exterior flood lights and 2 new circuits
Valuation:
$0
Permit #:
E9501678
Status:
Final
Fee:
$42
Permit Type:
N/A
Building Type:
N/A
Electrical for a fully self contained portable spa per plans
Valuation:
N/A
Permit #:
BI392181
Status:
final
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Single family residence
Valuation:
$273,984
Permit #:
BIR0000173709
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Leonard John Steffen License info
Inactive License
| License # | 401576 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- According to the California Contractors State 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 Leonard John Steffen at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $12,500 |
19
Permits
- Building permit records show that Leonard John Steffen has worked on 19 permitted projects.
Leonard John Steffen Employees
LS
Leonard John Steffen
Sole Owner