Updated: Dec 01, 2025
Location and Projects
Address
1525 WILLOW LAKE ROAD, Discovery Bay, CA, 94505
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Custom Modular Structures Construction
Custom Modular Structures, 1525 Willow Lake Rd, Discovery Bay, CA (Owned by: Claude Edward Lamb) holds a General Building license according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Custom Modular Structures, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Custom Modular Structures Services
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Custom Modular Structures Contact Information
Phone Number: (925) 413-8041
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Address: 1525 WILLOW LAKE ROAD, Discovery Bay, CA 94505
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Building Permits by Custom Modular Structures
This is a sample of this contractor's permits. Click here to access their complete permit history.
Building/residential/mir/miscellaneous residential
2020-10-28
New deck at the rear of the house relocation of front door and minor foundation work **birf13-00285 birf20-00243**
Valuation:
N/A
Permit #:
BIMIR20-010496
Status:
final
Fee:
$1,235
Permit Type:
N/A
Building Type:
N/A
Remodel single family residence including vaulted ceiling in 2nd floor master bedroom replace w h replace hvac new windows lighting plumbing fixtures drywall insulation demolish 2nd floor deck replace relocate gas insert
Valuation:
N/A
Permit #:
BP-1700883
Status:
complete
Fee:
$695
Permit Type:
N/A
Building Type:
N/A
Install vent and electrical outlet for fireplace insert (gas line under separate permit)
Valuation:
$600
Permit #:
D131159
Status:
final
Fee:
$293
Permit Type:
Asfr
Building Type:
N/A
Remove existing fireplace insert and replace with new unit. minor sheetrock repair
Valuation:
N/A
Permit #:
BIM14-002113
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
Plumbing install vent and electrical outlet for fireplace insert (gas line under separate permit)
Valuation:
N/A
Permit #:
D131159
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Racking in the ross store see also tenant improvement. permit b032945 and fire sprinkler permit bo4o298
Valuation:
$20,000
Permit #:
B041267
Status:
FINAL
Fee:
$504
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel w/pem
Valuation:
$28,812
Permit #:
B05-004518
Status:
FINALED
Fee:
$1,257
Permit Type:
N/A
Building Type:
N/A
Indoor fixtures only
Valuation:
$25,000
Permit #:
220282
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel kitchen and master bathroom. replace 10 windows and doors remove existing siding and replace with combo hardie board and stucco siding 10/7/2022 permit reinstated. lu
Valuation:
N/A
Permit #:
BIAL20-008181
Status:
final
Fee:
$2,869
Permit Type:
N/A
Building Type:
N/A
Replace 2 x 2 slats on back deck overhange. per frank wiseputra building engineer all structural damage to be replaced with like for like material and subject to field inspector approval
Valuation:
N/A
Permit #:
BIRP15-002515
Status:
expired
Fee:
$132
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Custom Modular Structures License info
Verified License
| License # | 560604 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Custom Modular Structures at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
8
Permits
- Building permit records show that Custom Modular Structures has worked on 8 permitted projects.
Custom Modular Structures Employees
CL
Claude Edward Lamb
Owner